Integrated Search Menu

Ariel Anbar

President's Professor
Faculty, TEMPE Campus, Mailcode 6004
Professor
Faculty, TEMPE Campus, Mailcode 6004
Professor
Faculty, TEMPE Campus, Mailcode 6004
Professor
Academic Professional, DTPHX Campus, Mailcode 7120
Professor
Faculty, DTPHX Campus, Mailcode 7120
President's Professor
Faculty, Tempe Campus, Mailcode 7120
Biography

Ariel Anbar is a scientist and educator interested in Earth’s evolution as an inhabited world, and the prospects for life beyond. His major focus is the deep time history of O2 and bioessential metals in the oceans, as deduced from the application of novel techniques in isotope geochemistry to ancient sedimentary rocks. Trained as a geologist and a chemist, Anbar is a President’s Professor at Arizona State University, where he is on the faculty of the School of Earth & Space Exploration and the School of Molecular Sciences, and a Distinguished Sustainability Scholar in the Global Institute of Sustainability. The author or co-author of over 100 refereed papers, Anbar directs ASU's NASA-funded Astrobiology Program and the new Center for Education Through eXploration. He is a graduate of Harvard (A.B. 1989) and Caltech (Ph.D. 1996). Before coming to ASU he was on the faculty of the University of Rochester from 1996 to 2004. Anbar is a Fellow of the Geological Society of America, which awarded him the Donath Medal in 2002. He was recognized as an HHMI Professor in 2014, and elected a Fellow of the Geochemical Society and the European Association of Geochemistry in 2015. 

Education

A.B., Harvard, 1989

Ph.D., California Institute of Technology, 1996

Research Interests

Researchers in my group use chemical concepts and approaches to study geological, chemical and biological processes that shape the Earth’s surface environment and how they have changed through time. Study of these processes teaches us about the habitability of the Earth, the history of the environment and life, the effects of human activities on the environment, and the prospects for life beyond Earth.

Our efforts center on the development and application of novel analytical techniques, particularly using mass spectrometry. Recently, we have been among the pioneers in using multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) to precisely measure mass-dependent variations in the isotopic compositions of transition metals, particularly iron and molybdenum. Work by us and others documents that variations of 0.01 – 0.1 %/amu, once undetectable, are actually ubiquitous. Such measurements in natural samples, informed by laboratory experiments and theoretical studies, provide insights into the environmental chemistry of metals and the metal-centered interactions between organisms and their surroundings. Applied to the geologic record, such “metal stable isotope” studies provide information about metal biogeochemical cycles on the ancient Earth, environmental changes that perturbed these cycles, and biological activity in the distant past. A notable recent example of this research is our use of molybdenum isotopes to study changes in the oxygen content of the oceans through time(Arnold et al., 2004).

We plan to continue to explore the biogeochemistry of metals in the middle of the periodic table, using isotopic and other methods. We are especially interested in “metallomic” research that relates the distribution and isotopic composition of metals in nature to the demand for these metals by various metalloenzymes. New state-of-the-art analytical facilities,particularly in the W. M. Keck Foundation Laboratory for Environmental Biogeochemistry, make ASU an exceptional setting to pursue this research.

Publications
  • #G. W. Gordon, J. Monge, M. B. Channon, Q. Wu, J. L. Skulan, A. D. Anbar and R. Fonseca (# = Anbar-advised postdoc or staff first author). Predicting multiple myeloma disease activity by analyzing natural calcium isotopic composition. Leukemia (2014).
  • *M. Neveu, A. T. Poret-Peterson, Z. M. P. Lee, A. D. Anbar and J. J. Elser (*Anbar-advised student first author). Prokaryotic cells separated from sediments are suitable for elemental composition analysis. Limnol. Oceanogr.: Methods (2014).
  • ¶K. T. Goto, A. D. Anbar, G. W. Gordon, S. J. Romaniello, G. Shimoda, Y. Takaya, A. Tokumaru, R. Nozaki, K. Suzuki, S. Machida, T. Hanyu and A. Usui (¶ = Anbar-advised visiting student or scientist first author). Uranium isotope systematics of ferromanganese crusts in the Pacific Ocean: Implications for the marine 238U/235U isotope system. Geochim. Cosmochim. Acta (2014).
  • C. P. McKay, A. D. Anbar, C. Porco and P. Tsou. Follow the plume: the habitability of Enceladus. Astrobiology (2014).
  • P. A. Young, S. J. Desch, A. D. Anbar, R. Barnes, N. R. Hinkel, R. Kopparapu, N. Madhusudhan, N. Monga, M. D. Pagano, M. A. Riner, E. Scannapieco, S-H. Shim and A. Truitt. Astrobiological stoichiometry. Astrobiology (2014).
  • S. J. Desch, P. A. Young, A. D. Anbar, N. Hinkel, M. Pagano, A. Truitt and M. Turnbull. Report on a NASA Astrobiology Institute-funded Workshop Without Walls:?Stellar Stoichiometry. Astrobiology (2014).
  • T. F. Nägler, A. D. Anbar, C. Archer, T. Goldberg, G. W. Gordon, N. D. Greber, C. Siebert, Y. Sohrin, and D. Vance. Proposal for an international molybdenum isotope measurement standard and data representation. Geostand. Geoanal. Res (2014).
  • A. Anbar, G. Bruce, S. Semken, R. Summons, S. Buxner , L. Horodyskij, B. Kotrc, J. Swann, S. Klug Boonstra, and C. Oliver. Virtual exploration of Earth’s evolution. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • A. I. Sheen, B. Kendall, C. Reinhard, A. D. Anbar, R. A. Creaser, J. Lyons, A. Bekker, S. W. Poulton. Quantitative constraints on the extent of Middle Proterozoic ocean anoxia from modeling of the oceanic mass balance of rhenium. Geological Society of America Abstracts with Programs (2014).
  • G. Bruce, A. Anbar, S. Semken, R. Summons, C. Oliver, and S. Buxner. iVFTs - immersive virtual field trips for interactive learning about Earth’s environment. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • H. Smith, H. Kim, S. Romaniello, P. Field and A. Anbar. A robust and fully-automated chromatographic method for the quantitative purification of Ca and Sr for isotopic analysis. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • K. Goto, T. Ito, K. Suzuki, A. Anbar, G. Gordon, T. Kashiwabara, Y. Takaya, G. Shimoda, T. Nozaki, S. Kiyokawa, G. Tetteh and F. Nyame. A highly oxidized atmosphere–ocean system and oceanic molybdenum drawdown during the Paleoproterozoic. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • L. Horodyskyj, D. Schönstein, S. Buxner, S. Semken and A. Anbar. Increasing Impact of Coursework Through Deep Analytics. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • M. Roy, C. Ostrander, T. Lyons, S. Olson, R. Buick and A. Anbar. Preliminary results from the AIDP-2 and AIDP-3 drill cores hint at systematic Mo enrichments in the ~2.65 Ga Roy Hill Shale. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • S. Olson, C. Reinhard, N. Planavsky, T. Lyons, M. Roy and A. Anbar. Oxygen oases before and after the GOE: insights from metals and models. Invited. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • X. Chen, S. Romaniello, A. Herrmann, L. Wasylenki and A. Anbar. Uranium isotope fractionation during coprecipitation with aragonite and calcite. 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec (2014).
  • X. Chen, S. Romaniello, A. Herrmann, L. Wasylenki and A. Anbar. Uranium isotope fractionation during incorporation into aragonite and calcite. 24th V. M. Goldschmidt Conference, Sacramento, CA, 8-13 June (2014).
  • #B. Kendall, G. A. Brennecka, S. Weyer and A. D. Anbar. (# = Anbar-advised postdoc or staff first author). Uranium isotope fractionation suggests oxidative uranium mobilization at 2.50 Ga. Chem. Geol (2013).
  • *C. Mead, J. R. Lyons, T. M. Johnson and A. D. Anbar. (* = Anbar-advised student first author). Unique Hg stable isotope signatures of compact fluorescent lamp-sourced Hg. Env. Sci. Tech (2013).
  • *C. Mead, P. Herckes, B. J. Majestic and A. D. Anbar. (* = Anbar-advised student first author). Source apportionment of aerosol iron in the marine environment using iron isotope analysis. Geophys. Res. Lett (2013).
  • *J. B. Glass, A. Chappaz, B. Eustis, A. C. Heyvaert, D. Waetjen, H. E. Hartnett and A. D. Anbar. (* = Anbar-advised student first author). Molybdenum geochemistry in a seasonally dysoxic Mo-limited lacustrine ecosystem. Geochim. Cosmochim. Acta (2013).
  • *J. B. Glass, A. T. Poret-Peterson, F. Wolfe-Simon and A. D. Anbar. (* = Anbar-advised student first author). Molybdenum limitation induces expression of the molybdate-binding protein Mop in a freshwater nitrogen-fixing cyanobacterium. Adv. Microbiol (2013).
  • *S. Romaniello, A. D. Herrmann and A. D. Anbar. Uranium concentrations and 238U/235U isotope ratios (238U/235U) in modern carbonates from the Bahamas: assessing a novel paleoredox proxy. Chem. Geol (2013).
  • C. Scott, N. J. Planavsky, C. L. DuPont, B. Kendall, B. C. Gill, L. J. Robbins, K. F. Husband, G. L. Arnold, B. A. Wing, S. W. Poulton, A. Bekker, A. D. Anbar, K. O. Konhauser and T. W. Lyons. Bioavailability of zinc in marine systems through time. Nature (Geoscience) (2013).
  • T. Goldberg, G. Gordon, G. Izon, C. Archer, C. R. Pearce, J. McManus, A. D. Anbar and M. Rehkämper. Resolution of inter-laboratory discrepancies in Mo isotope data: an intercalibration. J. Anal. At. Spectrom (2013).
  • Y. Marusenko, J. Shipp, G. A. Hamilton, J. L.L. Morgan, M. Keebaugh, H. Hill, A. Dutta, X. Zhuo, N. Upadhyay, J. Hutchings, P. Herckes, A. D. Anbar, E. Shock and H. E. Hartnett. Bioavailability of nanoparticulate hematite to Arabidopsis thaliana. Environ. Pollut (2013).
  • T. K. Lowenstein, B. Kendall and A. D. Anbar. Chapter 8.21: The geologic history of seawater. Treatise on Geochemistry (2013).
  • #G. Bruce, A. D. Anbar, K. E. Karlstrom and L. J. Crossey. (# = Anbar-advised postdoc or staff first author). Virtual field exploration of Grand Canyon geology and geologic history. Geological Society of America Abstracts with Programs 45: 399 (2013).
  • #G. W. Gordon, J. Monge, M. B. Channon, Q. Wu, J. Skulan, A. D. Anbar and R. Fonseca. (# = Anbar-advised postdoc or staff first author). Calcium isotopic composition and its association with multiple myeloma disease activity. Abstract presented at the 55th American Society of Hematology Annual Meeting and Exposition, New Orleans, LA, Dec. 7-10 (2013).
  • #L. Horodyskyj, D. Ben-Naim, S. C. Semken and A. D. Anbar. (# = Anbar-advised postdoc or staff first author). Transforming the online course. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • #M. Channon, G. Gordon, Q. Schollenberger, J. Morgan, S. Smith and A. Anbar. (# = Anbar-advised postdoc or staff first author). Understanding controls on Ca isotopes in human blood and urine. Mineralogical Magazine (2013).
  • *M. Neveu, A. T. Poret-Peterson, A. D. Anbar and J. J. Elser . (* = Anbar-advised student first author). Ordinary stoichiometry of extraordinary microbes. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • A. Anbar and T. Lyons. Redox-sensitive metals and their isotopes: the Holland legacy of early ocean exploration. 23rd V. M. Goldschmidt Conference, Florence, Italy, 25-30 August. Published in Mineralogical Magazine (2013).
  • A. Anbar and T. Lyons. Redox-sensitive metals and their isotopes: the Holland legacy of early ocean exploration. Mineralogical Magazine (2013).
  • A. D. Anbar. Isotope innovations. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec. Invited (2013).
  • A. D. Anbar. Isotope innovations. Invited. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • A. D. Anbar, J. Skulan, G. Gordon and J. Morgan. Metallomic markers in medicine. Pittcon 2013 Conference, Philadelphia, PA, March 17-21. Invited (2013).
  • A. D. Anbar, J. Skulan, G. Gordon and J. Morgan. Metallomic markers in medicine. Abstract presented at the Pittcon 2013 Conference, Philadelphia, PA, March 17-21. Invited (2013).
  • A. D. Anbar, L. Horodyskyj, D. Ben-Naim and S. Semken. Innovation online: inverting the lecture-lab paradigm in science education. Geological Society of America Abstracts with Programs (2013).
  • A. D. Anbar, L. Horodyskyj, D. Ben-Naim and S. Semken. Innovation online: inverting the lecture-lab paradigm in science education. Geological Society of America Abstracts with Programs 45: 656 (2013).
  • A. Herrmann, T. Algeo, S. Romaniello, G. Gordon and A. Anbar. Molybdenum and uranium isotope dynamics in a paleozoic epicontinental black shale. 23rd V. M. Goldschmidt Conference, Florence, Italy, 25-30 August. Published in Mineralogical Magazine (2013).
  • A. Herrmann, T. Algeo, S. Romaniello, G. Gordon and A. Anbar. Molybdenum and uranium isotope dynamics in a paleozoic epicontinental black shale. Mineralogical Magazine (2013).
  • B. Kendall, R. A. Creaser, C. T. Reinhard and A. D. Anbar. Confirmation of minimal post-depositional disturbance of rhenium and osmium in the 2.50 Ga Mt. McRae shale and osmium isotope evidence for Late Archean oxidative weathering. Geological Society of America Abstracts with Programs (2013).
  • C. Mead, S. Semken, A. D. Anbar. The development of a valid and reliable biogeochemistry concept inventory. Geological Society of America Abstracts with Programs (2013).
  • D. R. Bell and A. D. Anbar. Oxygen titration of continental lithosphere and the rise of atmospheric O2. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • D. R. Bell and A. D. Anbar. Oxygen titration of continental lithosphere and the rise of atmospheric O2. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • G. Bruce, A. D. Anbar, K. E. Karlstrom and L. J. Crossey. Virtual field exploration of Grand Canyon geology and geologic history. Geological Society of America Abstracts with Programs (2013).
  • G. Bruce, S. Semken, A. D. Anbar, K. E. Karlstom, L. J. Crossery. Explore and study Grand Canyon by immersive virtual field trip!. Geological Society of America Abstracts with Programs (2013).
  • G. Gordon, J. Skulan, M. Channon, R. Fonseca and A. Anbar. Early detection of osteolytic lesions in multiple myeloma using natural Ca isotopes. 23rd V. M. Goldschmidt Conference, Florence, Italy, 25-30 August. Published in Mineralogical Magazine (2013).
  • G. Gordon, J. Skulan, M. Channon, R. Fonseca and A. Anbar. Early detection of osteolytic lesions in multiple myeloma using natural Ca isotopes. Mineralogical Magazine (2013).
  • G. W. Gordon, J. Monge, M. B. Channon, Q. Wu, J. Skulan, A. D. Anbar and R. Fonseca. Calcium isotopic composition and its association with multiple myeloma disease activity. Abstract presented at the 55th American Society of Hematology Annual Meeting and Exposition, New Orleans, LA, Dec. 7-10 (2013).
  • L. Horodyskyj, D. Ben-Naim, S. C. Semken and A. D. Anbar. Transforming the online course. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • M. Channon, G. Gordon, Q. Schollenberger, J. Morgan, S. Smith and A. Anbar. Understanding controls on Ca isotopes in human blood and urine. 23rd V. M. Goldschmidt Conference, Florence, Italy, 25-30 August. Published in Mineralogical Magazine (2013).
  • M. Elrick, T. J. Algeo, V. J. Polyak, L. Zhao, Z. Q. Chen, A. Herrmann Y. Asmerom and A. D. Anbar. Late Permian through early Triassic marine redox and continental weathering flux patterns interpreted from U and Nd isotopes: implications for end-Permian extinction models. Geological Society of America Abstracts with Programs (2013).
  • M. Elrick, T. J. Algeo, V. J. Polyak, L. Zhao, Z. Q. Chen, A. Herrmann Y. Asmerom and A. D. Anbar. Late Permian through early Triassic marine redox and continental weathering flux patterns interpreted from U and Nd isotopes: implications for end-Permian extinction models. Geological Society of America Abstracts with Programs 45: 89 (2013).
  • M. Neveu, A. T. Poret-Peterson, A. D. Anbar and J. J. Elser. Ordinary stoichiometry of extraordinary microbes. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • R. Fonseca, J. Skulan, G. Gordon, and A. D. Anbar. Early detection of osteolytic lesions in multiple myeloma using natural Ca isotopes. Abstract presented at 14th International Myeloma Workshop, Kyoto, Japan. April 3-7 (2013).
  • S. K. Sahoo, G. Jiang, N. J. Planavsky, B. Kendall, J. D. Owens, A. D. Anbar and T. W. Lyons. Ediacaran redox fluctuations. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • S. K. Sahoo, G. Jiang, N. J. Planavsky, B. Kendall, J. D. Owens, A. D. Anbar and T. W. Lyons. Turbulent times for early animals?. Geological Society of America Abstracts with Programs (2013).
  • S. K. Sahoo, G. Jiang, N. J. Planavsky, B. Kendall, J. D. Owens, A. D. Anbar and T. W. Lyons. Ediacaran redox fluctuations. 2013 Fall Meeting, AGU, San Francisco, CA, 8-13 Dec (2013).
  • S. K. Sahoo, G. Jiang, N. J. Planavsky, B. Kendall, J. D. Owens, A. D. Anbar and T. W. Lyons. Turbulent times for early animals?. Geological Society of America Abstracts with Programs 45: 754 (2013).
  • . Special Issue dedicated to H.D. Holland: Evolution of the atmosphere and ocean through time. (2013).
  • #A. D. Herrmann, B. Kendall, T. J. Algeo, G. W. Gordon, L. E. Wasylenki and A. D. Anbar. (# = Anbar-advised postdoc or staff first author). Anomalous molybdenum isotope trends in Upper Pennsylvanian euxinic facies: Significance for use of ?98Mo as a global marine redox proxy. Chem. Geol (2012).
  • *G. L. Arnold, T. W. Lyons, G. W. Gordon and A. D. Anbar. (* = Anbar-advised student first author). Extreme change in sul?de concentrations in the Black Sea during the Little Ice Age reconstructed using molybdenum isotopes. Geology (2012).
  • *J. L. L. Morgan, J. L. Skulan, G. W. Gordon, S. J. Romaniello, S. M. Smith and A. D. Anbar. (* = Anbar-advised student first author). Rapidly assessing changes in bone mineral balance using natural stable calcium isotopes. Proc. Nat. Acad. Sci (2012).
  • ¶S. K. Sahoo, N. J. Planavsky, B. Kendall, X. Wang, X Shi, C. Scott, A. D. Anbar, T. W. Lyons and G. Jiang. (¶ = Anbar-advised visiting student or scientist first author). Ocean oxygenation in the wake of the Marinoan glaciation. Nature (2012).
  • A. Chappaz, T. W. Lyons, G. Gordon and A. D. Anbar. Isotopic fingerprints of anthropogenic molybdenum in lake sediments. Env. Sci. Tech (2012).
  • J. D. Owens, T. W. Lyons, X. Li, K. G. Macleod, G. Gordon, M. M. M. Kuypers, A. Anbar, W. Kuhnt and S. Severmann. Iron isotope and trace metal records of iron cycling in the proto-North Atlantic during the Cenomanian-Turonian oceanic anoxic event (OAE-2). Paleoceanography (2012).
  • M. F. Westall, A. Anbar, W. Fischer and L. Kump. The great oxidation event: an expert discussion on the causes, the processes, and the still unknowns. Astrobiology (2012).
  • P. Tsou, D. E. Brownlee, C. P. McKay, A. D. Anbar, H. Yano, K. Altwegg, L. W. Beegle, R. Dissly, N. J. Strange and I. Kanik. LIFE: Life Investigation For Enceladus, A Sample Return Mission Concept in Search for Evidence of Life. Astrobiology (2012).
  • . . Review of: The Story of Earth (2012).
  • #B. Kendall, A. D. Anbar, A. Kappler and K. O. Konhauser. (# = Anbar-advised postdoc or staff first author). The Global Iron Cycle. Fundamentals of Geobiology (2012).
  • #A. Kelly, T. Lyons, E. Alsop, G. Love, N. Planavsky, B. Kendall and A. Anbar. (# = Anbar-advised postdoc or staff first author). Geochemical perspectives on local versus global ocean redox at 1.64 Ga. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June. Invited (2012).
  • #B. Kendall, A. Anbar, R. Creaser, T. Lyons, A. Bekker and S. Poulton. (# = Anbar-advised postdoc or staff first author). Rhenium data from shales con?rms ferruginous Proterozoic deep oceans. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June (2012).
  • *A. A. Monroe, P. Williams and A. D. Anbar. (* = Anbar-advised student first author). Sampling and analysis of organic molecules in the plumes of Enceladus. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • *C. Mead, P. Herckes, B. J. Majestic and A. D. Anbar. (* = Anbar-advised student first author). Quantifying anthropogenic Fe in marine aerosols using Fe stable isotope analysis. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • *M. Neveu, A. T. Poret-Peterson, Z. M. Lee, A. D. Anbar and J. J. Elser. (* = Anbar-advised student first author). Cell-sediment separation and elemental stoichiometries in extreme environments. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • *S. J. Romaniello, A. D. Herrmann and A. D. Anbar. (* = Anbar-advised student first author). Incorporation and early diagenesis of Mo and U isotope records in Bahamian carbonate sediments. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June. Invited (2012).
  • *S. R. Romaniello, G. Gordon, D. Wiederin, M. P. Field and A. D. Anbar. (* = Anbar-advised student first author). Automated sample puri?cation: Radiogenic and non-traditional metal isotopes in the 21st century. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June (2012).
  • A. D. Anbar, B. Kendall, C. Reinhard and T. W. Lyons. Evidence of environmental oxygenation before the Great Oxidation Event: a status report. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • A. D. Herrmann, G. W. Gordon, S. J. Romaniello, T. J. Algeo and A. D. Anbar. Spatial heterogeneity of uranium isotope variations in a Phanerozoic, epicontintental black shale (Hushpuckney Shale, Swope Formation). 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • A. Herrmann, S. Romaniello, P. Reid and A. Anbar. U isotopes in marine calcareous algae: a paleo-redox proxy?. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June (2012).
  • A. Marcotte, B. J. Majestic, A. D. Anbar and P. Herckes. The effect of particle size on iron solubility in atmospheric aerosols. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • H. Pacheco, W. L. Taylor, S. Semken, A. E. Benbow, C. Mably, I. MacGregor, A. D. Anbar and W. Burelson. Leveraging resources: AGI-ASU-NASA triad model for Earth and space science teacher professional development. Geological Society of America Abstracts with Programs 44: 574 (2012).
  • M. P. Field, S. J. Romaniello, G. W. Gordon and A. D. Anbar. Automated sample preparation for radiogenic and non-traditional metal isotope analysis by MC-ICP-MS. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • N. Monga, S. J. Romaniello and A. D. Anbar. Isotopic fractionation of U(VI) during reduction by sulphide. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June (2012).
  • P. Tsou, I. Kanik, D. Brownlee, C. McKay, A. Anbar, D. Glavin and H. Yano. Returning samples from Enceladus. 2012 Fall Meeting, AGU, San Francisco, CA., 3-7 Dec (2012).
  • S. Sahoo, N. Planavsky, B. Kendall, X. Wang, X. Shi, A. Anbar, T. Lyons and G. Jiang. Ocean redox changes in the wake of the Marinoan glaciation. Abstract presented at the 22nd V. M. Goldschmidt Conference, Montreal, Canada, 24-29 June (2012).
  • A. D. Anbar and S. Severmmann. Isotope Fractionation (Metal). Encyclopedia of Geobiology, J. Reitner and V. Thiel, eds. Springer (2011).
  • A. D. Anbar and S. Severmmann. Transition Metals and their Isotopes. Encyclopedia of Astrobiology, M. Gargaud, ed. Springer (2011).
  • #B. Kendall, G. W. Gordon, S. W. Poulton and A. D. Anbar. (#Anbar-advised postdoc or staff first author). Molybdenum isotope constraints on the extent of late Proterozoic ocean euxina. Earth Planet. Sci. Lett (2011).
  • #L. E. Wasylenki, C. L. Weeks, J. R. Bargar, T. G. Spiro, J. R. Hein and A. D. Anbar (# Anbar-advised postdoc or staff first author). The molecular mechanism of Mo isotope fractionation during adsorption to birnessite. Geochim. Cosmochim. Acta (2011).
  • *G. A. Brennecka, A. D. Herrmann, T. J. Algeo and A. D. Anbar. (* = Anbar-advised student first author). Rapid expansion of oceanic anoxia immediately before the end-Permian extinction. Proc. Nat. Acad. Sci (2011).
  • *G. A. Brennecka, S. Weyer, M. Wadhwa, P. Janney, A. D. Anbar and J. Zipfel. (* = Anbar-advised student first author). 238U/235U variations in meteorites: extant 247Cm and implications for Pb-Pb dating. Science (2011).
  • *G. Brennecka, L. E. Wasylenki, S. Weyer and A. D. Anbar. (*Anbar-advised student first author). Uranium isotope fractionation during adsorption to manganese oxides. Env. Sci. Tech (2011).
  • *J. L. Morgan, G. W. Gordon, C. Arrua, J. Skulan, T. D. Bullen and A. D. Anbar. (* = Anbar-advised student first author). High precision measurement of variations in calcium isotope ratios in urine by multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS). Anal. Chem (2011).
  • ¶B. D. Duval, P. Dijkstra, S. A. Natali, J. P. Megonigal, M. E. Ketterer, B. G. Drake, M. T. Lerdau, G. Gordon, A. D. Anbar and B. A. Hungate. (¶ = Anbar-advised visiting student or scientist first author). Plant-soil distribution of potentially toxic elements in response to elevated atmospheric CO2. Env. Sci. Tech (2011).
  • ¶T. W. Dahl, D. E. Canfield, M. T. Rosing, R. Frei, G. W. Gordon, A. H. Knoll and A. D. Anbar. (¶ = Anbar-advised visiting student or scientist first author). Molybdenum evidence for expansive sulfidic water masses in ~750 Ma oceans. Earth Planet. Sci. Lett (2011).
  • ¶T. W. Dahl, E. U. Hammarlund, A. D. Anbar, D. P. G. Bond, B. C. Gill, G. W. Gordon, A. H. Knoll, A. T. Nielsen, N. H. Schovsbo and D. E. Canfield. (¶ = Anbar-advised visiting student or scientist first author). Reply to Butterfield: Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish. Proc. Nat. Acad. Sci (2011).
  • E. S. Boyd, A. D. Anbar, S. Miller, T. L. Hamilton, M. Lavin and J. W. Peters. A late methanogen origin for molybdenum-dependent nitrogenase. Geobiology (2011).
  • F. Wolfe-Simon, J. Switzer Blum, T. R. Kulp, G. W. Gordon, S. E. Hoeft, J. Pett-Ridge, J. F. Stolz, S. M. Webb, P. K. Weber, P. C. W. Davies, A. D. Anbar and R. S. Oremland. A bacterium that can grow by using arsenic instead of phosphorus. Science (2011).
  • F. Wolfe-Simon, J. Switzer Blum, T. R. Kulp, G. W. Gordon, S. E. Hoeft, J. Pett-Ridge, J. F. Stolz, S. M. Webb, P. K. Weber, P. C. W. Davies, A. D. Anbar and R. S. Oremland. Response to Comments on "A bacterium that can grow by using arsenic instead of phosphorus". Science DOI: 10.1126/science.1202098 (2011).
  • L. J. Liermann, R. Mathur, L. E. Wasylenki, J. Nuester, A. D. Anbar and S. L. Brantley. Extent and isotopic composition of Fe and Mo release from two Pennsylvania shales in the presence of organic ligands and bacteria. Chem. Geol (2011).
  • R. Raiswell, C. T. Reinhard, A. Derkowski, J. Owens, S. H. Bottrell, A. D. Anbar and T. W. Lyons. Formation of syngenetic and early diagenetic iron minerals in the late Archean Mt. McRae Shale, Hamersley Basin, Australia: New insights on the patterns, controls and paleoenvironmental implications of authigenic mineral formation. Geochim. Cosmochim. Acta (2011).
  • Hamilton, V. E., Anbar, A. D, Budney, C. J., Mellon, M. T., Mischna, M. A., Righter, K. Recipe for Success: Research and Technology Programs as Key Ingredients of the Mars Exploration Program, Final Report of the Supporting Research and Technology Science Analysis Group (SRT SAG). (2011).
  • B. Kendall, A. J. Kaufman, C. Reinhard, T. W. Lyons and A. D. Anbar. Pervasive oxygenation along late Archean ocean margins. Nature (Geoscience) (2010).
  • C. Montoya-Pino, S. Weyer, A. D. Anbar, J. Pross, W. Oschmann, B. van de Schootbrugge and H. W. Arz. Global enhancement of ocean anoxia during Oceanic Anoxic Event 2: A quantitative approach using U isotopes. Geology (2010).
  • G. A. Brennecka, L.E. Borg, I. D. Hutcheon, M. A. Sharp and A. D. Anbar. Natural variations in uranium isotope ratios of uranium ore concentrates: Understanding the 238U/235U fractionation mechanism. Earth Planet. Sci. Lett (2010).
  • G. A. Brennecka, S. Weyer, M. Wadhwa, P. Janney, A. D. Anbar and J. Zipfel. 238U/235U variations in meteorites: extant 247Cm and implications for Pb-Pb dating. Science (2010).
  • J. Glass, F. Wolfe-Simon, J. J. Elser and A. D. Anbar. Molybdenum–nitrogen co-limitation in freshwater and coastal heterocystous cyanobacteria. Limnol. Oceanogr (2010).
  • J. L. Morgan, L. E. Wasylenki and A. D. Anbar. Fe isotope fractionation during Equilibration of Fe-organic Complexes. Env. Sci. Tech (2010).
  • K. J. Knudson, H. M. Williams, J. E. Buikstra, P. D. Tomczak, G. W. Gordon and A. D. Anbar. Introducing d88/86Sr analysis in archaeology: a demonstration of the utility of strontium isotope fractionation in paleodietary studies. J. Archeol. Sci (2010).
  • Pratt, L.M., C. Allen, A.C. Allwood, A. Anbar, S.K. Atreya, D.W. Beaty, M.H. Carr, J.A. Crisp, D.J. Des Marais, J.A. Grant, D.P. Glavin, V.E. Hamilton, K. Herkenhoff, V. Hipkin, B. Sherwood Lollar, T.M. McCollom, A.S. McEwen, S.M. McLennan, R.E. Milliken, D.W. Ming, G.G. Ori, J. Parnell, F. Poulet, C.G. Salvo, F. Westall, C.W. Whetsel, and M.G. Wilson. The Mars astrobiology explorer-cacher (MAX-C): A potential rover mission for 2018. Astrobiology (2010).
  • R. Mathur, S. Brantley, A. Anbar, F. Munizaga, V. Maksaec, R. Newberry, J. Vervoort and G. Hart. Variation of Mo isotopes from molybdenite in high-temperature hydrothermal ore deposits. Miner. Deposita (2010).
  • T. W. Dahl, A. D. Anbar, G. W. Gordon, M. T. Rosing, R. E. Frei and D. E. Canfield. The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland. Geochm. Cosmochim. Acta (2010).
  • T. W. Dahl, E. U. Hammarlund, A. D. Anbar, D. P. G. Bond, B. C. Gill, G. W. Gordon, A. H. Knoll, A. T. Nielsen, N. H. Schovsbo and D. E. Canfield. Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish. Proc. Nat. Acad. Sci (2010).
  • Y. Duan, A. D. Anbar, G. Gordon, S. Severmann, T. W. Lyons and B. Sageman. Isotopic evidence for Fe cycling and repartitioning in ancient oxygen-deficient settings: Examples from black shales of the mid-to-late Devonian Appalachian basin. Earth Planet. Sci. Lett (2010).
  • Y. Duan, A. D. Anbar, G. L. Arnold, T. W. Lyons, G. W. Gordon and B. Kendall. Molybdenum isotope evidence for mild environmental oxygenation before the Great Oxidation Event. Geochim. Cosmochim. Acta (2010).
  • C. S. Romanek, B. Beard, A. Anbar and C T.F. Andrus. Non-traditional stable isotopes in the environmental sciences. (2010).
  • B. J. Majestic, A. D. Anbar and P. Herckes. Elemental and iron isotopic composition of aerosols collected in a parking structure. Sci. Total Env (2009).
  • B. Kendall, R. A. Creaser, G. W. Gordon and A. D. Anbar. Re-Os, Mo, and Fe isotope systematics of black shales from the Proterozoic Velkerri and Wollogorang Formations, McArthur Basin, Northern Australia. Geochim. Cosmochim. Acta (2009).
  • B. Majestic, A. D. Anbar and P. Herckes. Measuring natural variations of iron isotopic composition in atmospheric aerosols for use in source-apportionment studies. Env. Sci. Tech (2009).
  • C. Reinhard, R. Raiswell, C. Scott, A. D. Anbar and T. W. Lyons. A late Archean sulfidic sea stimulated by early oxidative weathering of the continents. Science (2009).
  • F. Wolfe-Simon, P. C. W. Davies and A. D. Anbar. Did nature also choose arsenic?. Internat. J. Astrobiology (2009).
  • G. W. Gordon, T. W. Lyons, G. L. Arnold, J. E. Roe, B. B. Sageman and A. D. Anbar. When do black shales tell molybdenum isotope tales?. Geology (2009).
  • H. Beraldi-Campesi, H. E. Hartnett, A. D. Anbar, G. W. Gordon and F. Garcia-Pichel. Effects of biological soil crusts on soil elemental concentrations: implications for biogeochemistry and as traceable biosignatures of ancient life on land. Geobiology (2009).
  • J. A. Mikucki, A. Pearson, D. T. Johnston, A. V. Turchyn, J. Farquhar, D. P. Schrag, A. D. Anbar, J. C. Priscu and P. A. Lee. A contemporary microbially maintained subglacial ferrous ‘ocean’. Science (2009).
  • J. B. Glass, F. Wolfe-Simon and A. D. Anbar. Coevolution of marine metal availability and photoautotrophic nitrogen assimilation. Geobiology (2009).
  • J. Garvin, R. Buick, A. D. Anbar, G. L. Arnold and A. J. Kaufman. Isotopic evidence for an aerobic nitrogen cycle in the latest Archean. Science (2009).
  • Pratt, L.M., C. Allen, A.C. Allwood, A. Anbar, S.K. Atreya, D.W. Beaty, M.H. Carr, J.A. Crisp, D.J. Des Marais, J.A. Grant, D.P. Glavin, V.E. Hamilton, K. Herkenhoff, V. Hipkin, B. Sherwood Lollar, T.M. McCollom, A.S. McEwen, S.M. McLennan, R.E. Milliken, D.W. Ming, G.G. Ori, J. Parnell, F. Poulet, C.G. Salvo, F. Westall, C.W. Whetsel, and M.G. Wilson. Mars Astrobiology Explorer-Cacher: A potential rover mission for 2018, Final report from the Mid-Range Rover Science Analysis Group (MRR-SAG). Mars Exploration Program Analysis Group (MEPAG) (2009).
  • U. Ryb, A. Matthews, Y. Erel, G. Gordon and A. D. Anbar. Large molybdenum isotope variations in a continental rift setting. Geology (2009).
  • H. Ohmoto, B. Runnegar, L. R. Kump, M. L. Fogel, B. Kamber, A. D. Anbar, P. L. Knauth, D. R. Lowe, D. Y. Sumner and Y. Watanabe. Biosignatures in ancient rocks: a summary of discussions at a field workshop on biosignatures in ancient rocks. (2009).
  • S. Severmann and A. D. Anbar. Reconstructing paleoredox conditions through a multi-tracer approach: the key to the past is the present. (2009).
  • T. W. Lyons, A. D. Anbar, S. Severmann, C. Scott and B. C. Gill. Tracking euxinia in the ancient ocean: a multiproxy perspective and Proterozoic case study. (2009).
  • Anbar, Ariel, Rouxel, O. Metal Stable Isotopes in Paleoceanography. (2007).
  • Ariel Anbar, A Jarzecki, T Spiro. Theoretical investigation of iron isotope fractionation between Fe(H2O)63+ and Fe(H2O)62+: implications for iron stable isotope geochemistry. Geochim. Cosmochim. Acta (2005).
  • Ariel Anbar, G Arnold, T Lyons, J Barling. Response to comment on "Molybdenum isotope evidence for widespread anoxia in mid-Proterozoic oceans". Science (2005).
  • B Jakosky, Ariel Anbar, D Des Marais, D Morrison, N Pace. Don't dismiss astrobiology. Science (2005).
  • L Liermann, A Marin, V LeBron, R Guynn, J Barling, Ariel Anbar, S Brantley. Metal-targeted dissolution of silicates by soil bacteria. Chem. Geol (2005).
  • S Weyer, C Münker, G Brey, A Woodland, K Metzger, Ariel Anbar. Iron isotope fractionation during planetary differentiation. Earth Planet Sci. Lett (2005).
  • A Jarzecki, Ariel Anbar, T Spiro. DFT investigation of vibrational spectra of Fe(H2O)63+ and Fe(H2O)62+. J. Phys. Chem. A (2004).
  • Ariel Anbar. Iron stable isotopes: beyond biosignatures. Earth Planet. Sci. Lett (2004).
  • Ariel Anbar. Molybdenum stable isotopes: Observations, interpretations and directions. Rev. Mineral. Geochem (2004).
  • G Arnold, Ariel Anbar, J Barling, T Lyons. Molybdenum isotope evidence of widespread anoxia in mid-Proterozoic oceans. Science (2004).
  • G Arnold, S Weyer, Ariel Anbar. Iron isotope variations in natural materials measured using high mass resolution MC-ICP-MS. Anal. Chem (2004).
  • G Icopini, S Ruebush, M Tien, Ariel Anbar, S Brantley. Iron isotope fractionation during microbial reduction of iron: the importance of adsorption. Geology (2004).
  • J Barling, Ariel Anbar. Molybdenum isotope fractionation during adsorption by manganese oxides. Earth Planet. Sci. Lett (2004).
  • O Katz, M Beyth, N Mille, R Stern, D Avigad, A Basu, Ariel Anbar. A Late Neoproterozoic (~630 Ma) Boninitic Suite from southern Israel: Implications for the consolidation of Gondwanaland. Earth Planet. Sci. Lett (2004).
  • S Brantley, L Liermann, Ariel Anbar, G Icopini, R Guynn, J Barling. Fe isotopic fractionation during mineral dissolution. Geochim. Cosmochim. Acta (2004).
  • Anbar, Ariel David (Author) . Molybdenum stable isotopes: Observations, interpretations and directions. Geochemistry of Non-Traditional Stable Isotopes (2004).
  • J Roe, Ariel Anbar, J Barling. Nonbiological fractionation of Fe isotopes: Evidence of an equilibrium isotope effect. Chem. Geol (2003).
  • Ariel Anbar, A Knoll. Proterozoic ocean chemistry and evolution: A bioinorganic bridge?. Science (2002).
  • Ariel Anbar. Iron isotope biosignatures: promise and progress. EOS (2001).
  • Ariel Anbar, K Knab, J Barling. Precise determination of mass-dependent variations in the isotopic composition of Mo using MC-ICP-MS. Anal. Chem (2001).
  • Ariel Anbar, K Zahnle, G Arnold, S Mojzsis. Extraterrestrial iridium, sediment accumulation and the habitability of the early Earth's surface. J. Geophys. Res (2001).
  • J Barling, G Arnold, Ariel Anbar. Natural mass-dependent variation in the isotopic composition of molybdenum. Earth Planet. Sci. Lett (2001).
  • M Sharma, M Polizzotto, Ariel Anbar. Iron isotopes in hydrothermal fluids at the Juan de Fuca ridge. Earth Planet. Sci. Lett (2001).
  • P Karam, S Leslie, Ariel Anbar. The effects of changing atmospheric oxygen concentrations and background radiation levels on radiogenic DNA damage rates. Health Phys (2001).
  • Ariel Anbar, J Roe, J Barling, K Nealson. Non-biological fractionation of iron isotopes. Science (2000).
  • K. Goto, A. Anbar, G. Gordon, S. Romaniello, G. Shimoda, Y. Takaya, A. Tokumaru, T. Nozacki, K. Suzuki, S. Machida, T. Hanyu and A. Usui. Uranium isotope in ferromanganese crusts: implications for the marine 238U/235U isotope system. 24th V. M. Goldschmidt Conference, Sacramento, CA, 8-13 June (0).
  • S. J. Romaniello, A. D. Herrmann and A. D. Anbar. Progress, pitfalls, and future directions developing the d238U paleoredox proxy. 24th V. M. Goldschmidt Conference, Sacramento, CA, 8-13 June (0).
  • T. W. Dahl, A. D. Anbar, G. W. Gordon and D. E. Canfield. Iron cycling in Neoproterozoic ferruginous oceans. 24th V. M. Goldschmidt Conference, Sacramento, CA, 8-13 June (0).
Research Activity
Fall 2017
Course NumberCourse Title
CHM 302Environmental Chemistry
SES 592Research
SES 599Thesis
SES 792Research
SES 799Dissertation
Summer 2017
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2017
Course NumberCourse Title
SES 106Habitable Worlds
GLG 592Research
AST 592Research
GLG 599Thesis
SES 692Research
GLG 692Research
AST 692Research
SES 792Research
AST 792Research
GLG 792Research
SES 799Dissertation
GLG 799Dissertation
AST 799Dissertation
Fall 2016
Course NumberCourse Title
CHM 494Special Topics
GLG 494Special Topics
CHM 501Current Topics in Chemistry
GLG 581Isotope Geochemistry
GLG 592Research
CHM 598Special Topics
GLG 599Thesis
SES 692Research
GLG 692Research
AST 692Research
GLG 792Research
SES 792Research
SES 799Dissertation
GLG 799Dissertation
AST 799Dissertation
Summer 2016
Course NumberCourse Title
GLG 592Research
AST 692Research
GLG 692Research
GLG 792Research
GLG 799Dissertation
Spring 2016
Course NumberCourse Title
SES 106Habitable Worlds
GLG 495Undergraduate Thesis
AST 592Research
GLG 592Research
GLG 599Thesis
AST 692Research
GLG 692Research
AST 792Research
GLG 792Research
AST 799Dissertation
GLG 799Dissertation
Fall 2015
Course NumberCourse Title
GLG 494Special Topics
CHM 494Special Topics
GLG 499Individualized Instruction
GLG 592Research
CHM 598Special Topics
GLG 598Special Topics
GLG 599Thesis
AST 692Research
GLG 692Research
GLG 792Research
GLG 799Dissertation
AST 799Dissertation
Summer 2015
Course NumberCourse Title
GLG 592Research
GLG 692Research
GLG 792Research
Spring 2015
Course NumberCourse Title
GLG 494Special Topics
CHM 494Special Topics
CHM 501Current Topics in Chemistry
GLG 581Isotope Geochemistry
GLG 592Research
AST 592Research
CHM 598Special Topics
GLG 599Thesis
GLG 692Research
AST 692Research
GLG 792Research
AST 792Research
GLG 799Dissertation
AST 799Dissertation
Fall 2014
Course NumberCourse Title
SES 106Habitable Worlds
GLG 591Seminar
Spring 2014
Course NumberCourse Title
GLG 494Special Topics
CHM 494Special Topics
GLG 598Special Topics
CHM 598Special Topics
Fall 2013
Course NumberCourse Title
GLG 499Individualized Instruction
Spring 2013
Course NumberCourse Title
GLG 494Special Topics
CHM 494Special Topics
CHM 501Current Topics in Chemistry
GLG 581Isotope Geochemistry
GLG 592Research
CHM 598Special Topics
GLG 599Thesis
GLG 692Research
GLG 792Research
GLG 799Dissertation
Presentations
  • A. D. Anbar. The Uranium Isotope Paleoredox Proxy: A Primer and Future Prospects. Colloquium, University of Science and Technology of China, Hefei (Jun 2014).
  • A. D. Anbar. A Non-Traditional Application of Non-Traditional Isotopes: Can Calcium Isotopes Detect Cancer?. Colloquium at University of Science and Technology of China, Hefei (Jun 2014).
  • A. D. Anbar. A Non-Traditional Application of Non-Traditional Isotopes: Can Calcium Isotopes Detect Cancer?. Colloquium at the Chinese Academy of Geological Sciences (Jun 2014).
  • A. D. Anbar. Detecting Exoplanetary Ecosystems. Invited plenary talk at the 3rd International Geobiology Conference, Wuhan, China (Jun 2014).
  • A. D. Anbar. Are We Alone?. Invited presentation to a meeting of the ASU Faculty Emeritii Association, April, 2014 (Apr 2014).
  • A. E. Kelly, G. D. Love, T. W. Lyons and A. D. Anbar. An integrated organic-inorganic geochemical study of the 1.64 Ga Barney Creek Formation in Australia. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • B. Kendall, G. W. Gordon, S. Poulton and A. D. Anbar. Molybdenum isotope constraints on the extent of late Paleoproterozoic ocean euxinia. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • C. Mead, A. D. Anbar, J. R. Lyons and T. M. Johnson. Mass-independent fractionation of mercury isotopes in compact fluorescent light bulbs. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • A. T. Poret-Peterson, R. Schwegel, J. J. Elser, E. Shock and A. D. Anbar. Diversity of membrane-bound nitrate reductase genes in geothermal springs. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • R. Raiswell, C. Reinhard, A. Derkowski and A. D. Anbar. Environmental changes recorded by syngenetic and early diagenetic iron minerals in the late Archean Mt. McRae Shale. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • L. E. Wasylenki, G. Brennecka, J. Bargar, S. Weyer and A. D. Anbar. EXAFS reveals the mechanism of U isotope fractionation during adsorption to Mn oxyhydroxide. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • W. B. Wilkes, L. E. Wasylenki and A. D. Anbar. Zinc finger takes on a whole new meaning: reducing and monitoring zinc blanks in the isotope lab. 2010 Fall Meeting, AGU, San Francisco, CA., 13-17 Dec (Dec 2010).
  • A. Herrmann, T. J. Algeo and A. D. Anbar. Do uranium isotopes of epicontinental black shales reflect global oceanic conditions?. Geological Society of America Meeting, 2010 (Nov 2010).
  • T. W. Lyons, A. D. Anbar, A. Bekker, B. Kendall, C. Li, G. D. Love, P. Mcgoldrick, N. J. Planavsky, R. Raiswell, C. T. Reinhard, C. Scott. New view of the old ocean: a prevalence of deep iron and marginalized sulfide from the late archean through the Proterozoic. Geological Society of America Meeting, 2010 (Nov 2010).
  • R. Raiswell, C. Reinhard, A. Derkowski, J. Owens, S. Bottrell, A. D. Anbar and T. W. Lyons. Formation of syngenetic and early diagenetic iron minerals in the late Archean Mt. McRae Ahale: paleoceanographic implications. Geological Society of America Meeting, 2010 (Nov 2010).
  • L. E. Wasylenki, L. J. Liermann, J. Nuester, A. D. Anbar, S. L. Brantley. Fe isotope fractionation and kinetics of Fe release during dissolution of two very different amphiboles. Geological Society of America Meeting, 2010 (Nov 2010).
  • J. D. Blum, A. D. Anbar. Mercury isotopes in the late Archean Mount McRae Shale. 2010 V. M. Goldschmidt Conference (Jun 2010).
  • T. W. Dahl, E. Hammarlund, A. H. Knoll, A.D. Anbar, D. E. Canfield. Ocean oxygenation after the rise of animals. 2010 V. M. Goldschmidt Conference (Jun 2010).
  • C. Mead, A. D. Anbar, T. M. Johnson. Mass-independent fractionation of Hg isotopes resulting from photochemical self-shielding. 2010 V. M. Goldschmidt Conference (Jun 2010).
  • S. Severmann, J. Mcmanus, R. Poulson-Brucker, J. Owens, T. Lyons, A. Anbar, G. Gordon. Of modern lakes and ancient oceans: Trace metals and their isotopes in an anoxic African rift lake. 2010 V. M. Goldschmidt Conference (Jun 2010).
  • L. E. Wasylenki, G. A. Brennecka, J. R. Bargar, A. D. Anbar. The mechanism of uranium isotope fractionation during adsorption to Mn oxyhydroxide. 2010 V. M. Goldschmidt Conference (Jun 2010).
  • A. D. Anbar, Y. Duan and B. Kendall. Early oxygen. GeoCanada 2010 (May 2010).
  • K. Alexander, K. Lui, T. Viliboroghi, A. Anbar, F. Garcia-Pichel, and H. E. Hartnett. Response of biological soil crusts to porewater metal additions. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • A. D. Anbar. Habitable Worlds: astrobiology meets sustainability in the virtual realm. Astrobiology Science Conference 2010, League City, TX, 26-29 Apri (Apr 2010).
  • A. D. Anbar, Y. Duan and B. Kendall. Early oxygen. Astrobiology Science Conference 2010, League City, TX., 26-29 April (Apr 2010).
  • A. D. Anbar, E. S. Boyd, R. Buick, M. Claire, D. Des Marais, D. Domagal-Goldman, J. Eigenbrode, D. Erwin, K. Freeman, R. Hazen, C. Johnson, T. Lyons, V. Meadows, H. Ohmoto, S. Ono, J.W. Peters, B. Shapiro, R. Summons and M. Walter. An Archean Biosphere Initiative. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • E. S. Boyd, A. D. Anbar, S. Miller, T. L. Hamilton, M. Lavin and J. W. Peters. An early origin for molybdenum-nitrogenase. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • J. B. Glass, F. L. Wolfe-Simon, A. T. Poret-Peterson and A. D. Anbar. Signatures of low-Mo ancient ocean may be preserved in cyanobacterial genomes. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • H. E. Hartnett, S. Romaniello, B. Johnson, M. Kyle, T. Anderson, A. D. Anbar, J. Elser and E. Shock. Geochemical evidence for denitrification in a Yellowstone National Park hot spring. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • B. Kendall, G. Brennecka, S. Weyer and A. D. Anbar. Onset of oxidative uranium mobilization on the late Archean Earth?. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • A. T. Poret-Peterson, R. Schwegel, M. Knowlton, J. J. Elser, E. L. Shock and A. D. Anbar. Denitrification in hot environments: a gene perspective. Astrobiology Science Conference 2010, League City, TX, 26-29 April (Apr 2010).
  • S. Weyer, G. Brennecka, C. Montoya Pino, J. Noordmann, E. A. Schauble, M. Wadhwa and A. D. Anbar. Natural variation of 238U/235U in geo- and cosmochemistry. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • L. E. Wasylenki, G. Montanez and A. D. Anbar. Cd isotope fractionation during adsorption varies with salinity. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • S. J. Romaniello, G. Brennecka, A. D. Anbar and A. S. Colman. Natural isotopic fractionation of 238U/235U in the water column of the Black Sea. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • C. Reinhard, R. Raiswell, C. Scott, A. D. Anbar and T. W. Lyons. Oxidative weathering and euxinia in the Late Archean. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • B. Kendall, C. Reinhard, T. W. Lyons, A. J. Kaufman and A. D. Anbar. Late Archean surface ocean oxygenation. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • K. Alexander, D. Lui, A. D. Anbar, G. Garcia-Pichel and H. E. Hartnett. Effect of nitrogen and metal additions on nitrogen fixation activity in biological soil crusts. 2009 Meeting of the American Geophysical Union (Dec 2009).
  • S. Weyer, G. Brennecka, J. Zipfel, M. Wadhwa and A. D. Anbar. U isotope variations in CAIs: Implications for the age of the Solar System. 2009 Goldschmidt Conference (Jul 2009).
  • L. E. Wasylenki, C. L. Weeks, T. G. Spiro, J. R. Bargar and A. D. Anbar. How Mo isotopes fractionate during adsorption to Mn and Fe oxyhydroxides. 2009 Goldschmidt Conference (Jul 2009).
  • C. Montoya Pino, S. Weyer, B. van de Schootbrugge, A. D. Anbar, H. W. Arz, W. Oschmann and J. Pross. Global versus regional anoxia during the OAE-2 and the T-OAE. 2009 Goldschmidt Conference (Jul 2009).
  • T. W. Lyons, C. Scott, C. Reinhard and A. D. Anbar. Euxinia in the Proterozoic ocean, trace metal abundances, and the potential impacts on life. 2009 Goldschmidt Conference (Jul 2009).
  • B. C. Gill, B. C., T. W. Lyons, T. Dahl, M. Saltzman, G. Gordon and A. D. Anbar. Multiple geochemical proxies reveal a Late Cambrian ocean anoxic event. 2009 Goldschmidt Conference (Jul 2009).
  • T. W. Dahl, A. D. Anbar, G. W. Gordon, M. T. Rosing, R. E. Frei, and D. E. Canfield. Do d98Mo values in marine euxinic sediments reflect seawater?. 2009 Goldschmidt Conference (Jul 2009).
  • B. Kendall, C. Reinhard, T. W. Lyons, A. J. Kaufman and A. D. Anbar. Surface ocean oxygenation preceded the Great Oxidation Event. 2009 Meeting of the Geological Society of America (Jul 2009).
  • G. A. Brennecka, A. D. Herrmann, M. R. Saltzman and A. D. Anbar. Using 238U/235U ratios in carbonates as a paleoredox indicator: variations across the Permian-Triassic boundary. 2009 Meeting of the Geological Society of America (Jul 2009).
  • E. A. Prevedorou, M. Diaz-Zorita Bonilla, J. E. Buikstra, G. Gordon, A. Anbar and K. J. Knudson. Residential Mobility and Dietary Patterns at the Prehistoric Site of Gatas, Southeastern Spain. Annual Meeting of the American Association of Physical Anthropologists (Apr 2009).
  • T. Algeo, G. Gordon, A. Anbar, P. Sauer, L. Schwark, S. Bates, T. Lyons, S. Turgeon, R. Creaser, B. Nabbfeld and K. Grice. New insights on the Frasnian/Famennian mass extinction: a role for soil erosion?. 2008 AGU Meeting (Dec 2008).
  • A. D. Anbar and F. Wolfe-Simon. The bioinorganic bridge between life and environment. 2008 AGU Meeting (Dec 2008).
  • K. Bradley, B. Weiss, L. Carporzen, A. Anbar and R. Buick. Paleomagnetism of the Astrobiology Drilling Project 8 drill core, Pilbara, Western Australia: implications for the early geodynamo and Archean tectonics. 2008 AGU Meeting (Dec 2008).
  • J. Crawford, J. Black, L. Wasylenki, G. Gordon, A. Anbar and A. Kavner. Electrochemical fractionation of molybdenum stable isotopes. 2008 AGU Meeting (Dec 2008).
  • J. B. Glass, F. Wolfe-Simon and A. D. Anbar. Molybdenum storage in cyanobacteria: "mopping" up excess Mo. 2008 AGU Meeting (Dec 2008).
  • T. W. Lyons, C. Scott, B. C. Gill and A. D. Anbar. Trace Metals in the Early Ocean, Biological Implications, and Evolving Biospheric Redox. 2008 AGU Meeting (Dec 2008).
  • C. T. Reinhard, R. Raiswell, A. Anbar and T. Lyons. An Episode of Late Archean Euxinia and Enhanced Continental Weathering Revealed by Iron Speciation in the Mt. McRae Shale. 2008 AGU Meeting (Dec 2008).
  • M. A. Saito, E. M. Bertrand and A. Anbar. Neoproterozoic Oxygenation of Earth Surface Environments Reflected in the Late Evolution of the O2-Dependent Vitamin B12 Biosynthesis Pathway. 2008 AGU Meeting (Dec 2008).
  • A. D. Anbar and M. Claire. O2 variability in Archean environments: do whiffs trump tiffs?. 2008 Goldschmidt Conference (Jul 2008).
  • A. D. Anbar and G. W. Gordon. Redox renaissance. 2008 Goldschmidt Conference (Jul 2008).
  • G. A. Brennecka, L. E. Wasylenki, S. Weyer and A. D. Anbar. Experiments demonstrate that uranium isotopes fractionate during adsorption to Mn-oxides. 2008 Goldschmidt Conference (Jul 2008).
  • T. W. Dahl, A. D. Anbar, G. W. Gordon, M. T. Rosing, R. E. Frei and D. E. Canfield. Molybdenum isotope variations in a redox-stratified lake; removal mechanism and preservation in euxinic sediments. 2008 Goldschmidt Conference (Jul 2008).
  • Y. Duan, G. L. Arnold, G. W. Gordon and A. D. Anbar. Evidence from Mo isotopic compositions for "a whiff of oxygen" before the Great Oxidation Event. 2008 Goldschmidt Conference (Jul 2008).
  • B. Kendall, J. L. Hannah, G. Yang, H. J. Stein, R. Creaser, A. D. Anbar and G. L. Arnold. Crustal versus hydrothermal sources to 2.7-2.3 Ga seawater: Constraints from Os isotopes and Re, Mo abundances in black shales. 2008 Goldschmidt Conference (Jul 2008).
  • J. Neuster, L. J. Liermann, L. E. Wasylenki , A. D. Anbar and S. L. Brantley. Does Iron Dissociation from Siderophores Lead to Iron Isotope Fractionation?. 2008 Goldschmidt Conference (Jul 2008).
  • C. Reinhard, R. Raiswell, A. Anbar and T. Lyons. Oxidative weathering and the Fe-S balance of the late Archean ocean. 2008 Goldschmidt Conference (Jul 2008).
  • L. E. Wasylenki, C. L. Weeks, T. G. Spiro, J. R. Bargar and A. D. Anbar. When does metal adsorption cause isotopes to apportion?. 2008 Goldschmidt Conference (Jul 2008).
  • A. D. Anbar, A. J. Kaufman, G. Arnold, R. Buick, R. Creaser, Y. Duan, J. Farquhar, J. Garvin, D. Johnston, B. Kendall, T. W. Lyons and C. Scott. A whiff of oxygen before the Great Oxidation Event. 2008 Astrobiology Science Conference (Apr 2008).
  • J. B. Glass, F. Wolfe-Simon and A. D. Anbar. The co-evolution of nitrogen and molybdenum biogeochemical cycles: Mo requirements for nitrogen assimilation in diazotrophic heterocystous cyanobacteria. 2008 Astrobiology Science Conference (Apr 2008).
  • H. Hartnett, K. Alexander, F. Garcia-Pichel and A. Anbar. Production of dissolved organic carbon by desert biological soil crusts during simulated rainfall experiments. 2008 Astrobiology Science Conference (Apr 2008).
  • T. Lyons, W. Gilhooly, C. Reinhard, G. Love and A. Anbar. The challenge of distinguishing between marine and nonmarine deposition on early Earth. 2008 Astrobiology Science Conference (Apr 2008).
  • L. E. Wasylenki, T. J. Lund and A. D. Anbar. Mo isotopes fractionate during adsorption to hydrous ferric oxide: Implications for Mo isotopes in Archean and Proterozoic oceans. 2008 Astrobiology Science Conference (Apr 2008).
  • S. Weyer, A. Anbar, E. Schauble. Natural fractionation of uranium isotopes and ocean paleoredox. 2008 Astrobiology Science Conference (Apr 2008).
  • F. Wolfe-Simon, P. Davies and A. D. Anbar. Did nature also choose arsenic?. 2008 Astrobiology Science Conference (Apr 2008).
  • A. D. Anbar. Astrobiology and Lunar Exploration. 39th Lunar & Planetary Science Conference (Apr 2008).
  • S. Weyer, E. A. Schauble and A. D. Anbar. Nuclear volume-dependent fractionation of uranium isotopes. 2007 AGU Meeting (Dec 2007).
  • Y. Duan, A. D. Anbar, G. L. Arnold, G. W. Gordon, S. Severmann and T. W. Lyons. Iron isotope variations in the ~2.5 Ga Mt. McRae Shale. 2007 GSA Meeting (Oct 2007).
  • J. Skulan, A. D. Anbar and T. D. Bullen. Medical applications of calcium and other "non-traditional" stable isotope systems. 2007 GSA Meeting (Oct 2007).
  • A. D. Anbar and S. Weyer. Isotope fractionation: Happy hunting across the Periodic Table. 2007 FACSS Meeting (Oct 2007).
  • Ryb, U, Matthews, A, Erel, Y, Gordon, G, Anbar, Ariel. Large molybdenum isotope variations in a continental rift setting. 2007 Meeting of the European Geophysical Union (Apr 2007).
  • Wolfe-Simon, F, Diamond, A, Morgan, J, Elser, J, Anbar, Ariel. Evolutionarily significant differences between prokaryotic and eukaryotic responses to Fe stress. 2007 ASLO Aquatic Sciences Meeting (Feb 2007).
  • Anbar, Ariel. Potential insights into the evolution of the metallome from metal stable isotopes. 2007 ASLO Aquatic Sciences Meeting (Feb 2007).
  • Glass, J, Krief, M, Wolfe-Simon, F, Anbar, Ariel. Trace metal controls on the efficiency of nitrogen fixation: assessing microbial metal requirements in ancient oceans. 2007 ASLO Aquatic Sciences Meeting (Feb 2007).
  • Anbar, Ariel. A Whiff of Oxygen at the Archean-Proterozoic Boundary. Virginia Tech seminar (Jan 2007).
  • Anbar, Ariel. A Whiff of Oxygen before the Great Oxidation Event. MIT Seminar (Jan 2007).
  • Anbar, Ariel, Wasylenki, L, Liermann, L, Mathur, R, Brantley, S. Isotope fractionation during microbial metal assimilation. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Anbar, Ariel, Wolfe-Simon, F. Alternative Life: Let's Get Elemental!. Alternative Life Workshop (Dec 2006).
  • Gordon, G, Anbar, Ariel, MacLeod, K, Lyons, T. Mo isotopes during OAE2. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Severmann, S, McManus, J, Owens, J, Lyons, T, Gordon, G, Anbar, Ariel. Combined Fe-S stable isotopes in modern anoxic environments and the effect of Fe versus S limitation. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Siebert, C, Staton, S, Andersson, P, Anbar, Ariel. Molybdenum in the Baltic Sea. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Alexander, K, Hartnett, H, Anbar, Ariel, Beraldi, H, Garcia-Pichel, F. Isotopic composition of organic and inorganic carbon in desert biological soil crust systems. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Anbar, Ariel. Heavy stable isotopes: From exceptional to expected. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Wasylenki, L, Rolfe, B, Anbar, Ariel. Effect of ionic strength on Mo isotope fractionation during adsorption to Mn-oxyhydroxide. 2006 Fall Meeting of the American Geophysical Union (Dec 2006).
  • Anbar, Ariel. Oxygenation of the Surface Ocean at the Archean-Proterozoic Boundary. Astrobiology class lecture (Oct 2006).
  • Herrmann, A, Waslyenki, L, Anbar, Ariel. Molybdenum isotope record of the Hushpuckney shale (Missourian Stage, Eastern Kansas): implications for regional and global anoxia. 2006 Meeting of the Geological Society of America (Oct 2006).
  • Duan, Y, Anbar, Ariel, Arnold, G, Lyons, T, Kaufman, A, Gordon, G, Buick, R, Garvin, J. Molybdenum concentration and isotopic composition in the ~ 2.5 Ga McRae Shale, Hamersley Basin, Western Australia: An early whiff of oxygen?. 2006 Meeting of the Geological Society of America (Oct 2006).
  • Anbar, Ariel, Lyons, T, Summons, R, Buick, R. Drilling in Western Australia: Progress and Prospects. Agouron Foundation Drilling Workshop (Oct 2006).
  • Scott, C, Lyons, T, Bekker, A, Anbar, Ariel, Williams, G. Geochemical evidence for the restriction of oxic depositional environments in the Proterozoic ocean. 2006 Meeting of the Geological Society of America (Oct 2006).
  • Severmann, S, Lyons, T, Duan, Y, Anbar, Ariel, Gordon, G, McManus, J. The isotopic expression of Fe shuttling in modern and ancient euxinic sediments: implications for the rise of oxygen. 2006 Goldschmidt Conference (Sep 2006).
  • Wasylenki, L, Anbar, Ariel, Gordon, G. Temperature dependence of Mo isotope fractionation during adsorption to d-MnO2: implications for the paleoredox proxy. 2006 Goldschmidt Conference (Sep 2006).
  • Gordon, G, Anbar, Ariel, MacLeod, K, Lyons, T. Evaluation of the Mo isotope paleoredox proxy in Late Cretaceous ocean sediments. 2006 Goldschmidt Conference (Sep 2006).
  • Wasylenki, L, Mathur, R, Liermann, L, Anbar, Ariel, Brantley, S. Toward multi-element isotopic biosignatures: experimental investigation of microbial metal assimilation. 2006 Goldschmidt Conference (Sep 2006).
  • Anbar, Ariel. The Earth through Time: The Earth's Coevolution with the Biosphere. Pale Blue Dot III (Sep 2006).
  • Anbar, Ariel. The Evolution of the Earth. Spirit of the Senses (Phoenix-area community group) (Sep 2006).
  • Anbar, Ariel. Follow the Elements!. Gordon Research Conference on the Origin of Life (Jul 2006).
  • Anbar, Ariel. Non-traditional Isotopic Biosignatures. NRC Biosignatures Workshop (May 2006).
  • Bekker, A, Shen, Y, Kacanda, M, Lyons, T, Kenig, F, Anbar, Ariel, Rouxel, O. Redox state of the deep ocean during the 2.22-2.1 Ga carbon isotope excursion. 2006 Spring Meeting of the American Geophysical Union (May 2006).
  • Duan, Y, Anbar, Ariel, Gordon, G, Severmann, S, Lyons, T, Sageman, B. Investigation of iron isotope systematics in Middle Devonian anoxic basins. AbSciCon 2006 (Apr 2006).
  • Anbar, Ariel, Lyons, T. Insight into ocean redox evolution from metals and metal isotopes. AbSciCon 2006 (Apr 2006).
  • Anbar, Ariel, Wasylenki, L, Liermann, L, Brantley, S. Isotopic Fingerprints of Microbial Metal Assimilation. AbSciCon 2006 (Apr 2006).
  • Scott, C, Lyons, T, Bekker, A, Anbar, Ariel, Duan, Y. Mo-enrichment in Precambrian organic-rich shales: a proxy of atmospheric and ocean redox state. AbSciCon 2006 (Apr 2006).
  • Grymes, R, Ohmoto, H, Buick, R, Anbar, Ariel, Summons, R, D'Hondt, S. The astrobiology drilling program: update. AbSciCon 2006 (Apr 2006).
  • Staton, S, Amskold, L, Gordon, G, Anbar, Ariel, Konhauser, K. Iron isotope fractionation during photo-oxidation of aqueous ferrous iron. 2006 Spring Meeting of the American Geophysical Union (Apr 2006).
  • Staton, S, Amskold, L, Gordon, G, Anbar, Ariel, Konhauser, K. Iron isotope fractionation during photo-oxidation of aqueous ferrous iron. AbSciCon 2006 (Apr 2006).
  • Wasylenki, L, Anbar, Ariel, Gordon, G. Temperature dependence of the molybdenum isotope paleoredox proxy. AbSciCon 2006 (Apr 2006).
  • Anbar, Ariel. Hot Night in the City? The Present, Past and Future of Earth's Climate System. The Last Lecture Series (ASU) (Apr 2006).
  • Anbar, Ariel. The Rise of Oxygen and the Evolution of the Metallome. Agouron Foundation Oxygen Workshop (Apr 2006).
  • Amskold, L, Anbar, Ariel, Konhauser, K. Banded iron formations in the Archaean: Was photo-oxidation the mechanism responsible for the deposition of Fe?. AbSciCon 2006 (Apr 2006).
  • Anbar, Ariel. Transition Metal and Other Non-Traditional Stable Isotopes: Novel Applications of MC-ICP-MS. Winter Plasma Conference (Jan 2006).
  • Anbar, Ariel. Transition Metal Stable Isotopes. 1st I. R. Kaplan Workshop: New Developments in Environmental Isotope Research (Sep 2005).
  • Anbar, Ariel. Insights into Redox Evolution of the Oceans from Molybdenum and Iron Isotopes. 1st I. R. Kaplan Workshop: New Developments in Environmental Isotope Research (Sep 2005).
  • Anbar, Ariel, Tackley, P, Wasylenki, L. Constraints on Archean oxygen from mantle isotope sytematics. Earth System Processes 2 (Aug 2005).
  • Anbar, Ariel. Possible biological implications of mid-Proterozoic ocean anoxia. Earth System Processes 2 (Aug 2005).
  • Scott, C, Lyons, T, Anbar, Ariel, Bekker, A, Poulton, S, Canfield, D. Trace metals in Precambrian black shales and the evolving redox state of the early ocean. Earth System Processes 2 (Aug 2005).
  • Severmann, S, Anbar, Ariel, Lyons, T, McManus, J. Fe cycling in modern and ancient anoxic environments and future directions for the Fe isotope paleoproxy. Earth System Processes 2 (Aug 2005).
  • Anbar, Ariel, Williams, G. Molybdenum isotope prospects. 15th V. M. Goldschmidt Conference (May 2005).
  • Anbar, Ariel. Stoichiometric linkages between major and minor elements in evolution. ASLO Aquatic Sciences Meeting 2005 (Feb 2005).
  • Williams, G, Anbar, Ariel, Lyons, T, Sageman, B, Arnold, G. The redox state of Devonian oceans: Mo isotope evidence. 2004 Meeting of the Geological Society of America (Nov 2004).
  • Scott, C, Lyons, T, Anbar, Ariel. Temporal trends in trace metal enrichment in precambrian black shales and oxidation of surface environments. 2004 Meeting of the Geological Society of America (Nov 2004).
  • Anbar, Ariel. Possible biological implications of mid-Proterozoic ocean anoxia. 2004 Meeting of the Geological Society of America (Nov 2004).
  • Anbar, Ariel. Metal isotopes and metallomics. 2004 Meeting of the Federation of Analytical Spectroscopy Societies (FACSS) (Oct 2004).
  • Anbar, Ariel. Molybdenum stable isotope biogeochemistry. Water Rock Interactions 2004 (Jul 2004).
  • Anbar, Ariel. Microbes and Metal Isotopes: Building a Bioinorganic Bridge. Gordon Research Conference on Environmental Bioinorganic Chemistry (Jun 2004).
  • Scott, C, Lyons, T, Anbar, Ariel. Temporal trends in Mo enrichment in Precambrian black shales as an indicator of Earth's oxidative history. 14th V. M. Goldschmidt Conference (Jun 2004).
  • Weyer, S, Woodland, A, Münker, C, Arnold, G, Chakrabarti, R, Anbar, Ariel. Iron isotope variations in the Earth's mantle and the terrestrial planets. 14th V. M. Goldschmidt Conference (Jun 2004).
  • Anbar, Ariel. Molybdenum Stable Isotopes: Observation, Interpretations and Directions. MSA Short Course on Geochemistry of Non-traditional Stable Isotopes (May 2004).
  • Anbar, Ariel, Buick, R, Lyons, T, Kaufman, A, Knoll, A, Summons, R. Integrated paleoecological and paleoenvironmental investigation of a Late Archean drill core. 2004 Astrobiology Science Conference (Mar 2004).
  • Anbar, Ariel, Buick, R, Mojzsis, S. Missions to the early Earth: Drilling and other projects on the Earth and beyond. 2004 Astrobiology Science Conference (Mar 2004).
  • Williams, G, Anbar, Ariel, Arnold, G. Reliability of black shales as recorders of marine molybdenum isotopes and paleoredox. 2004 Astrobiology Science Conference (Mar 2004).
  • Arnold, G, Anbar, Ariel. Mo isotopes as indicators of global paleoredox. 2004 Astrobiology Science Conference (Mar 2004).
  • Skulan, J, Anbar, Ariel, Bullen, T, Smith, S. Natural variations in calcium isotope composition as a monitor of bone mineral balance in humans. 2004 Fall Meeting of the American Geophysical Union
  • Williams, G, Anbar, Ariel, Arnold, G, Lyons, T. Tracking changes in ocean oxygenation with molybdenum isotopes. 2004 Fall Meeting of the American Geophysical Union
  • Anbar, Ariel. Molybdenum Isotopes as Paleoredox Proxies. NSF Workshop on Paleoproxies
  • Anbar, Ariel, Shock, E. Biogeoscience from a metallomic and proteomic perspective. 2004 Fall Meeting of the American Geophysical Union
  • Severmann, S, Lyons, T, McManus, J, Anbar, Ariel, Gordon, G. What can Fe isotopes in anoxic environments tell us about the rise of oxygen in the coupled land-ocean-atmosphere system? - Clues from the Black Sea. 2005 Fall Meeting of the American Geophysical Union
  • Anbar, Ariel, Zahnle, K, Arnold, G, Mojzsis, S. Extraterrestrial iridium, sediment accumulation and the habitability of the earth Earth. 2000 American Geophysical Union Fall Meeting
  • Anbar, Ariel, Buick, R, Mojzsis, S, Kaufman, A, Kieft, T, Lyons, T, Humayun, M. The case for scientific drilling of precambrian sedimentary sequences: A mission to early Earth. 2001 Meeting of the Geological Society of America
  • Arnold, G, Barling, J, Anbar, Ariel. Molybdenum stable isotopes: A potential new tool for quantifying the extent of bottom water anoxia. 2001 Meeting of the Geological Society of America
  • Anbar, Ariel. Earth, Mars and Beyond: The Search for Life in Difficult Places. Kodak Research & Engineering Retirees Organization
  • Anbar, Ariel, Arnold, G, Rye, R, Weyer, S. Iron isotopes in an Archean paleosol. 12th V.M. Goldschmidt Conference
  • Anbar, Ariel, Knoll, A. Sulfur isotopes as paleoenvironmental indicators: Evolutionary implications. 2002 Meeting of the Geological Society of America
  • Arnold, G, Anbar, Ariel, Barling, J. Oxygenation of Proterozoic oceans: Insight from molybdenum isotopes. 12th V. M. Goldschmidt Conference
  • Barling, J, Anbar, Ariel. Mass-dependent fractionation of molybdenum isotopes scavenged by manganese oxyhydroxides. 12th V. M. Goldschmidt Conference
  • Anbar, Ariel, Johnson, T. Oxyanion stable isotopes and ocean paleoredox. 13th V. M. Goldschmidt Conference
  • Arnold, G, Anbar, Ariel, Lyons, T, Williams, G. Molybdenum isotopes in black shales. 2003 Meeting of the Geological Society of America
  • Jarzecki, A, Anbar, Ariel, Spiro, T. Iron isotope fractionation between Fe(H2O)6 2+ and Fe(H2O)6 3+. 13th V. M. Goldschmidt Conference
  • Lyons, T, Anbar, Ariel, Gill, B, Meyers, S, Sageman, B, Cruse, A, Wilde, P, TScott, C. Molybdenum accumulation in organic-rich sediments and sedimentary rocks. 2003 Meeting of the Geological Society of America
  • Williams, G, Anbar, Ariel, Arnold, G. Preservation of molybdenum isotope signatures in black shales. 13th V. M. Goldschmidt Conference
  • Anbar, Ariel, Wolfe-Simon, Felisa, Elser, James. Elements of life. Annual meeting of the Geological Society of America
Service
  • Biogeosciences Section of the American Geophysical Union, President-Elect (2015 - Present)
  • Planetary Science Subcommittee of the NASA Advisory Council, Member (2014 - Present)
  • Advisory Board, Institute for the Science of Teaching and Learning, Member (2014 - Present)
  • Committee on Online Course Materials and Development, Dept. of Chemistry and Biochemistry, Member (2014 - Present)
  • Committee on School Formation, Dept of Chemistry & Biochemistry, Member (2014 - Present)
  • President’s Academic Council, Member (2014 - Present)
  • Arizona Science Education Consortium Executive Committee, Member (2014 - Present)
  • General Studies Council, Member (2014 - Present)
  • SETI Institute, Scientific Advisory Board,, Member (2014 - Present)
  • Provost’s Working Group on General Education, Chair (2013 - Present)
  • Tempe Chamber of Commerce, Speaker (2013)
  • Biodesign Graduate Program Committee, Member (2012 - Present)
  • Biodesign Graduate Program Committee, Member (2012 - Present)
  • Life Investigations For Enceladus (LIFE) Discovery mission concept, Deputy PI (2012 - Present)
  • Life Investigations For Enceladus (LIFE) Discovery mission concept, Deputy PI (2012 - Present)
  • Provost’s Committee on Excellence in Digital Learning and Teaching, Member (2011 - 2012)
  • Channel 8 (KAET) "Horizons", Guest (2010)
  • KJZZ, Interview (2010)
  • Frontiers in Microbiological Chemistry, Co-Editor (2010 - Present)
  • Heptennial Review Committee, ASU School of Earth & Space Exploration, Member (2010 - Present)
  • Metallomics (RSC), Advisory Board (2010 - Present)
  • Metallomics (RSC), Advisory Board (2010 - Present)
  • Scottsdale Museum of Contemporary Art, Speaker (2010)
  • ASU Origins Project, Associate Director (2010 - 2011)
  • Frontiers in Microbiological Chemistry, Co-Editor (2010 - Present)
  • Frontiers in Microbiological Chemistry, Co-Editor (2010 - Present)
  • Channel 8 (KAET) "Minds Over Matters", Guest (2009)
  • Spirit of the Senses (Phoenix-area community seminar group), Guest Speaker (2009)
  • Origins Project Faculty Advisory Committee, Member (2009 - Present)
  • Origins Project Faculty Advisory Committee, Member (2009 - Present)
  • NPR's Science Friday, Invited guest for panel on astrobiology (2009)
  • ASU Astrobiology Program, Director (2009 - Present)
  • NASA Astrobiology Institute Executive Council, Member (2009 - 2014)
  • Origins Project Faculty Advisory Committee, Member (2009 - Present)
  • Editorial Board, Metallomics, Member (2008 - Present)
  • Personnel and Budget Committee, Dept. of Chemistry & Biochemistry, Member (2008 - Present)
  • ISSOL (International Society for the Study of the Origin of Life), Councillor (elected office) (2008 - Present)
  • Personnel Committee, School of Earth & Space Exploration, Member (2008 - 2014)
  • Europa Jupiter System Mission, Science Definition Team, Member (2008)
  • Steering Committee, Environmental Life Sciences Graduate Program, Member (2008 - Present)
  • Science Definition Team, Outer Planets Flagship Mission (Jupiter System), Member (2008)
  • Strategic Planning Committee, Dept. of Chemistry & Biochemistry, Member (2006 - Present)
  • Editorial board, Chemical Geology, Member (2006 - Present)
  • NASA Planetary Science Subcommitte of the NASA Advisory Council, Member (2006 - 2009; 2015 - Present)
  • Chemical Geology, Editorial Board (2006 - Present)
  • Phoenix Police Department, Research service (2005)
  • School of Earth & Space Exploration, Honors Disciplinary Advisor (2005 - Present)
  • Lunar Exploration Analysis Group (LEAG), Member (2005 - Present)
  • Biogeochemistry Interest Group (BIG), Co-organizer (2004 - 2006)
  • Keck Laboratory Executive Committee, Member (2004 - Present)
  • Astrobiology Drilling Program Steering Committee, Member (2004 - Present)
  • Editorial Board, Geology, Member (2003 - Present)
  • Deep Time Drilling Project, Co-Chair (2002 - Present)
  • Early Earth Focus Group of the NASA Astrobiology Institute, Member (2000 - 2009)
  • Personnel Committee, School of Earth & Space Exploration, Chair (2012 - 2015)
  • Personnel and Budget Committee, Dept. of Chemistry & Biochemistry, Member (2012 - 2015)
  • American Geophysical Union Fall Meeting, Session convener (2014 - 2014)
  • NASA Astrobiology Institute Executive Council, Member (2009 - 2014)
  • American Geophysical Union Fall Meeting, Session convener (2013 - 2013)
  • Chemical Geology, Special Issue co-editor (2012 - 2013)
  • Emerge 2013 Workshop Lead: Is the Truth Out There? Hunting for Habitable Worlds., Workshop Leader (2013)
  • Supporting Research & Technology Special Action Group, MEPAG, Member (2010 - 2011)
  • AGU Session: Drilling Deep Time: Windows into Earth’s Early Biosphere, Co-convener (2010 - 2010)
  • Organizer, Anaerobic Phototrophic Ecosystems (APE) Workshop, Co-Chair (2010 - 2010)
  • Origins Project Faculty Advisory Committee, Member (2009 - 2010)
  • Personnel and Budget Committee, Dept. of Chemistry & Biochemistry, Member (2008 - 2010)
  • Gordon Research Conference on Environmental Bioinorganic Chemistry, 2010, Co-Chair (2008 - 2010)
  • Organizing Committee, NASA Astrobiology Institute Workshop on Oxygenation and Climate Change, Member (2010 - 2010)
  • Visiting Review Committee, Montana State University Astrobiology Team, Member (2010 - 2010)
  • Science and Technology Committee of the NASA Human Spaceflight Review Team (Augustine Commission), Member (2009 - 2009)
  • Personnel Committee, School of Earth & Space Exploration, Member (2008 - 2009)
  • Origins Symposium Program Committee, Member (2008 - 2009)
  • Graduate Oversight Committee, School of Earth & Space Exploration, Chair, Science Steering Committee (2007 - 2008)
  • Graduate Committee, School of Earth & Space Exploration, Member (2005 - 2008)
  • 2008 Astrobiology Science Conference, Chair, Science Steering Committee (2007 - 2008)
  • NRC Report on the Scientific Context of Lunar Exploration, Reviewer (2006 - 2007)
  • Science Organizing Committee, NASA Advisory Council Lunar Exploration Science Workshop, Member (2006 - 2007)
  • American Geophysical Union, Fall 2006, Co-convener (2006 - 2006)
  • Science Organizing Committee, NAC Lunar Exploration Science Workshop, Member (2006 - 2006)
  • Search Committee (Lunar Geologist), Dept. of Geological Sciences/School of Earth & Space Exploration, Member (2005 - 2006)
  • Spirit of the Senses, Speaker (2006 - 2006)
  • Science Organizing Committee, Pale Blue Dot III, Member (2005 - 2006)
  • Science organizing committee, Goldschmidt Conference, 2006 (Melbourne, Australia), Member and co-convener (2005 - 2006)
  • International Program Committee, Goldschmidt 2006, Member (2005 - 2006)
  • Dept. of Geological Sciences, Faculty Safety Officer (2005 - 2006)
  • School of Earth & Space Exploration, Faculty Safety Officer (2005 - 2006)
  • Astrobiology Science Conference (2006), Co-convener (2005 - 2006)
  • Mini-Keynote session (Early Earth), Astrobiology Science Conference (2006), Organizer (2005 - 2006)
  • Science Organizing Committee, Astrobiology Science Conference (2006), Member (2005 - 2006)
  • Science Organizing Committee, Astrobiology Science Conference 2006, Member (2005 - 2006)
  • Search Committee (Bioinorganic Chemist), Dept. of Chemistry & Biochemistry, Member (2005 - 2006)
  • Search Committee (Founding Director), Dept. of Geological Sciences/School of Earth & Space Exploration, Member (2005 - 2006)
  • Septennial Review Committee, Dept. of Chemistry & Biochemistry, Member (2005 - 2006)
  • Winter Plasma Conference, Invited Instructor (2006 - 2006)
  • NASA Exobiology Program Proposal Review Panel, Sub-panel chair (2005 - 2006)
  • NSF Paleoproxies Workshop, Invited Participant (2005 - 2005)
  • Editorial board, Geology, Member (2003 - 2005)
  • Deep Time Drilling Workshop (Earth System Processes 2), Organizer (2005 - 2005)
  • Earth System Processs 2, Co-convener (2005 - 2005)
  • Seminar Committtee, Dept. of Chemistry & Biochemistry, Member (2004 - 2005)
  • 14th V. M. Goldshmidt Meeting, Co-convener (2005 - 2005)
  • International Program Committee, Goldschmidt 2005, Member (2003 - 2005)
  • Intel Science and Engineering Fair, Judge (2005 - 2005)
  • Ph.D. Exam Committee, ETH Zurich, Member (2005 - 2005)
  • ASLO Aquatic Sciences Meeting, Co-convener (w/J. Elser and R. Sterner) (2004 - 2005)
  • American Geophysical Union, Co-convener (2004 - 2004)
  • Sigma Epsilon Fraternity, Faculty Advisor (2001 - 2003)
  • Hillel of Rochester Area Colleges, Campus Affairs, V.P (2001 - 2002)
  • Freshman Housing Implementation Committee/Freshman Advisory Committee, Member (2000 - 2002)