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Hilairy Hartnett

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School Of Earth and Space Exploration
Professor
Faculty w/Admin Appointment, TEMPE Campus, Mailcode 6004
Environmental Life Sciences (PhD) program
Professor
Faculty, TEMPE Campus, Mailcode 6004
Animal Behavior (PhD) program
Professor
Faculty, TEMPE Campus, Mailcode 6004
School of Molecular Sciences
Professor
Faculty, TEMPE Campus, Mailcode 6004
School for the Future of Innovation in Society > Related Faculty
Professor
Faculty, TEMPE Campus, Mailcode 6004
Sustainability Scientists and Scholars
Senior Sustainability Scientist
Faculty, TEMPE Campus, Mailcode 6004
Biography: 

Hilairy Hartnett (she/her) has joint appointments in the School of Earth and Space Exploration and the School of Molecular Sciences. She earned an A.B. degree in chemistry from Vassar College in 1990, and M.S. and Ph.D. degrees in oceanography from the University of Washington.  After postdoctoral work at Rutgers University, working in river and estuarine systems, she joined ASU in 2003. Her current research interests are in the areas of 1) biogeochemistry, specifically how geochemical, microbial, and anthropogenic processes affect elemental cycles in modern and paleo-environments, 2) Astrobiology and organic geochemistry, particularly how organic reactions are influenced by minerals under hydrothermal conditions and their implications for habitability, and 3) urban ecology and anthropocence science.

CV
Binary Data Curriculum Vitae
Education: 
  • Ph.D.Oceanography, University of Washington 1998
  • M.S. Oceanography, University of Washington​ 1995
  • A.B. Chemistry, Vassar College 1990
Google Scholar URL: 
Google Scholar Profile
Research Interests: 

My research in biogeochemistry focuses on how geochemical, microbial, and anthropogenic processes affect the dynamic linked elemental cycles in modern, and paleo-environments. A variety of field- and laboratory-based techniques are applied to investigate the processes and feedbacks that promote and/or limit the transfer of elements (i.e., C, N, and P) and energy between different geological pools; including living and non-living organic matter as well as various inorganic reservoirs.

These studies require investigations of mechanisms that operate on time scales from days to millenia. The main goal is to gain a better understanding of the interactions between the physical, chemical and biological processes that control the distributions of these climatically important elements and how they change through time. Current research projects include: the characterization of dissolved organic matter in aquatic and marine systems, and investigation of the bioavailability and reactivity of dissolved organic compounds in natural waters. State-of-the-art analytical approaches are used to quantify and characterize organic matter in a broad range of natural systems (i.e., marine, aquatic and terrestrial), including the development of novel mass-spectrometric techniques for identifying and quantifying natural organic compounds. Ultimately this research seeks to develop more a mechanistic understanding of biogeochemical processes and how they relate to global scale patterns.

Some of my earlier research involved investigating the complex controls on organic carbon preservation in aerobic and anaerobic marine systems, development of a probe-inlet for MIMS analysis of atmospheric gases to measure microbial oxidation rates (e.g., oxygen consumption and denitrification) in sediments, and the chemical characterization of rainwater DOM.

Publications: 
  • Robinson, KJ, C Bockisch, IR Gould, Y Liao, Z Yang, CR Glein, GD Shaver, HE Hartnett, LB Williams, EL Shock (2021) Quantifying the extent of amide and peptide bond synthesis across conditions relevant to geologic and planetary environments.  Geochimica ET Cosmochimica Acta.  300 318-332.
  • KN Johnson-Finn, IR Gould, LB Williams, HE Hartnett, EL Shock (2020) Kinetics and Mechanisms of Hydrothermal Ketonic Decarboxylation.  ACS Earth and Space Chemistry.  4, 11, 2082-2095.
  • Hinkel, N, HE Hartnett, P Young (2020) The influence of stellar phosphorus on our understanding of exoplanets and astrobiology. The Astrophysical Journal Letters. 900:L38.
  • Napolitano, DC, HE Hartnett, P Herckes‡ (2020). A novel method for carbonate quantification in atmospheric particulate matter. Atmosphere. 11(6), 662.  
  • Lisse, CM, SJ Desch, CT Unterborne, SR Kane, PR Young, HE Hartnett, NR Hinkel, SH Shim, EE Mamajek, NR Izenberg. (2020) A geologically robust procedure for observing rocky exoplanets to ensure that detection of atmospheric oxygen is an Earth-like biosignature. Astrophysics Journal Letters. 898(1): L17. 
  • JJ Nye, EL Shock, Everett, HE Hartnett (2020) A novel PARAFAC model for continental hot springs reveals unique dissolved organic carbon compositions.  Organic Geochemistry.  141
  • KJ Robinson, KM Fecteau, IR Gould, HE Hartnett, LB Williams, EL Shock (2020) Metastable equilibrium of substitution reactions among oxygen- and nitrogen-bearing organic compounds at hydrothermal conditions.  Geochimica ET Cosmochimica Acta.  272 93-104
  • DM Glaser, HE Hartnett, SJ Desch, CT Unterborn, A Anbar, S Buessecker, T Fisher, S Glaser, SR Kane, CM Lisse, C Millsaps, S Neuer, JG O'Rourke, N Santos, SI Walker, M Zolotov (2020) Detectability of Life Using Oxygen on Pelagic Planets and Water Worlds.  Astrophysical Journal.  893
  • CR Glein, IR Gould, ED Lorance, HE Hartnett, EL Shock (2020) Mechanisms of decarboxylation of phenylacetic acids and their sodium salts in water at high temperature and pressure.  Geochimica et Cosmochimica Acta.  269, 597-621
  • C. Bockisch, E.D. Lorance, G. Shaver, L.B. Williams, H.E. Hartnett, E.L. Shock, I.R. Gould (2019) Selective hydrothermal reductions using geomimicry.  Green Chemistry.  21 (15) 4159-4168
  • KM Fecteau, IR Gould, LB Williams, HE Hartnett, GD Shaver, KN Johnson, EL Shock (2019) Bulk gold catalyzes hydride transfer in the Cannizzaro and related reactions.  New Journal of Chemistry.  43, 19137-19148
  • K.M. Fecteau, I.R. Gould, C.R. Glein, L.B. Williams,H.E. Hartnett,  E.L. Shock, Everett L. (2019) Production of Carboxylic Acids from Aldehydes under Hydrothermal Conditions: A Kinetics Study of Benzaldehyde.  ACS Earth and Space Chemistry.  3 (2) 170-191
  • S Buessecker, K Tylor, J Nye, KE Holbert, JD Urquiza Munoz, JB Glass, HE Hartnett, H Cadillo-Quiroz (2019) Effects of sterilization techniques on chemodenitrification and N2O production in tropical peat soil microcosms.  Biogeosciences.  16 (23) 4601-4612.
  • D.L. Childers, P. Bois, H.E. Hartnett, T. McPhearson, G.S. Metson, C.A. Sanchez (2019) Urban Ecological Infrastructure: An inclusive concept for the non-built urban environment.  Elementa-Science of the Antropocene.  7.
  • C. Bockisch, Z. Yang, H. Hartnett, L. Williams, E. Shock, I.Gould (2019) Geomomicry: Chemists learning from geologists.  Abstracts of Papers of the American Chemical Society.  257
  • K.J. Robinson, I.R. Gould, K.M. Fecteau, H.E. Hartnett, L.B. Williams, E.L. Shock (2019) Deamination reaction mechanisms of protonated amines under hydrothermal conditions.  Geochimica Et Cosmochimica Acta.  244, 113-128
  • Yang, Z, I Gould, L Williams, HE Hartnett, E Shock (2018) Effects of iron-containing minerals on hydrothermal reactions of ketones. Geochim. Cosmochim. Acta. 223, 107-126. 
  • DD Richter, SA Billings, PM Groffman, EF Kelly, KA Lohse, WH McDowell, TS White, S Anderson, DD Baldocchi, S Banwart, S Brantley, JJ Braun, ZS Brecheisen, CW Cook, HE Hartnett, SE Hobbie, J Gaillardet, E Jobbagy, HF Jungkunst, CE Kazanski, J Krishnaswamy, D Markewitz, K O'Neill, CS Riebe, P Schroeder, C Piebe, WL Silver, A Thompson, A Verhoef, G Ganlin (2018) Ideas and perspectives: Strengthening the biogeosciences in environmental research networks.  Biogeosciences.  15 (15) 4815-4832.
  •  C Bockisch, ED Lorance, HE Hartnett, EL Shock, IR Gould (2018) Kinetics and Mechanisms of Dehydration of Secondary Alcohols Under Hydrothermal Conditions.  ACS Earth and Space Chemistry.  2 (8) 821-832.
  • EW Schwieterman, NY Kiang, MN Parenteau, CE Harman, S DasSarma, TM Fisher, GN Arney, HE Hartnett, CT Reinhard, SL Olson, VS Meadows, CS Cockell, SI Walker, JL Grenfell, S Hegde, S Rugheimer, R Hu, TW Lyons (2018) Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life.  Astrobiology.  18 (6) 663-708.
  • Schwieterman, EW, NY Kiang, MN Parenteau, CE Harman, S DasSarma, TM Fisher, GN Arney, HE Hartnett, CT Reinhard, SL Olson, VS Meadows, CS Cockell, SI Walker, JL Grenfell, S Hegde, S Rugheimer, R Hu, TW Lyons (in press) Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life. Astrobiology 
  • HE Hartnett. (2017) Biogeochemistry. In: Encyclopedia of Geochemistry. Ed. W. White. Springer, Cham.
  • HE Hartnett (2017) Dissolved Organic Carbon. In: Encyclopedia of Geochemistry. Ed. W. White. Springer
  • Palta, M and HE Hartnett (2017) The Nitrogen Cycle. In: Encyclopedia of Geochemistry. Ed. W. White. Springer
  • Venturi, S, F  Tassi, IR Gould, E Shock, HE Hartnett, ED Lorance, C Bockisch, KM Fecteau, F Capecchiacci, O Vaselli. Mineral-assisted production of benzene under hydrothermal conditions: insights from experimental studies on C6 cyclic hydrocarbons. J. Volc. Geothermal Res. (2017)
  • Londoño, S, HE Hartnett, L Williams. The antibacterial activity of aluminum in clay from the Colombian Amazon. Env. Sci. Tech. (2017)
  • Desch SJ, N Smith, C Groppi, P Vargas, R Jackson, A Kalyaan, P Nguyen, L Probst, ME Rubin, H Singleton, A Spacek, A Truitt, P Zaw, HE Hartnett. Arctic ice management. Earths Future. (2017)
  • Yang, Z., H.E. Hartnett, E. Shock, I. Gould. Organic oxidations using geomimicry. J. Org. Chemistry. (2015)
  • Bailey, A., M. Kellom, A. Poret-Peterson, K. Noonan, H.E. Hartnett, J. Raymond. Draft Genome of Bacillus sp. BSC154, Isolated from Biological Soil Crust of Moab, Utah. Genome Announcements (2014).
  • Bailey, A., M. Kellom, A. Poret-Peterson, K. Noonan, H.E. Hartnett, J. Raymond. Draft Genome of Massilia sp. BSC265, Isolated from Biological Soil Crust of Moab, Utah. Genome Announcements (2014).
  • Bailey, A., M. Kellom, A. Poret-Peterson, K. Noonan, H.E. Hartnett, J. Raymond. Draft Genome of Microvirga sp. BSC39, Isolated from Biological Soil Crust of Moab, Utah. Genome Announcements (2014).
  • Oiler, J., E. Shock, H. Hartnett, A. Dombard, H. Yu. Harsh environment sensor array-enabled hot spring mapping. IEEE Sensors Journal (2014).
  • Shipp, J., I. Gould, L. Williams, E. Shock., H.E. Hartnett. Sphalerite is a geochemical catalyst for carbon-hydrogen bond activation. Proceedings of the National Academy of Sciences (2014).
  • Vanderkluysen, L., H.E. Hartnett, A.B. Clarke, J.-F. Smekens, M.R. Burton. Periodic gas release inferred from open-path Fourier-transform infrared spectrometry at the LUSI mud volcano (East Java, Indonesia). Geochem. Geophys. Geosys (2014).
  • Xie, W., C.L. Zhang, J. Wang, Y. Chen, Y. Zhu, J. de la Torre, H. Dong, H.E. Hartnett, B.P. Hedlund, M.G. Klotz. Distribution of ether lipids and composition of the archaeal community in terrestrial geothermal springs: Impact of environmental variables. Environmental Microbiology (2014).
  • Yang, Z., E.D. Lorance, C. Bockish, L.B. Williams, H.E. Hartnett, E.L. Shock, I.R. Gould. Hydrothermal Photochemistry as a Mechanistic Tool in Organic Geochemistry. The Chemistry of Dibenzylketone. J. Org. Chem (2014).
  • Dutta, A., M. Flores, S. Roy, J. Schmitt, G.A. Hamilton, H.E. Hartnett, A.K. Jones. Sequential oxidations of thiolates and the cobalt metallocenter in a synthetic metallopeptide: Implications for the biosynthesis of nitrile hydratase. Inorganic Chemistry (2013).
  • Glass, J.B., A. Chappaz, B. Eustis, A. C. Heyvaert, D. Waetjen, H.E. Hartnett, A. D. Anbar. Molybdenum geochemistry in a seasonally dysoxic Mo-limited lacustrine ecosystem. Geochimica et Cosmochimica Acta (2013).
  • Hamilton, G.A. and H.E. Hartnett. Black carbon concentration and isotopic composition in urban-desert soils. Organic Geochemistry (2013).
  • Hou, W., S. Wang, H. Dong, H. Jiang, B. Briggs, J. Peacock, Q. Huang, L. Huang, G. Wu, X. Zhi, W. Li, J. Dodsworth, B. Headlund, C. Zhang, H. Hartnett, P. Dijkstra, B. Hungate. A comprehensive census of microbial diversity on hot springs of Tengchong, Yunnan Province, China using 16S rRNA gene pyrosequencing. PLOS One (2013).
  • Shipp, J., I. Gould, H.E. Hartnett, L. Williams, E. Shock. Reversibility, reactivity and reaction mechanisms for organic reactions under hydrothermal conditions. Geochimica et. Cosmochimica Acta (2013).
  • Shipp, J., I. Gould, H.E. Hartnett, L. Williams, E. Shock. Reversibility, reactivity and reaction mechanisms for organic reactions under hydrothermal conditions. Geochimica et. Cosmochimica Acta (2013).
  • Y. Marusenko, J. Shipp., G. A. Hamilton, J. L. Morgan, M. Keebaugh, H. Hill, A. Dutta, X. Zhou, N. Upadhyay, J. Hutchings, P. Herckes, A. Anbar, E. Shock, H.E. Hartnett. Bioavailability of Nanoparticulate Hematite to Arabidopsis thaliana. Environmental Pollution (2013).
  • Y. Marusenko, J. Shipp., G. A. Hamilton, J. L. Morgan, M. Keebaugh, H. Hill, A. Dutta, X. Zhou, N. Upadhyay, J. Hutchings, P. Herckes, A. Anbar, E. Shock, H.E. Hartnett. Bioavailability of Nanoparticulate Hematite to Arabidopsis thaliana. Environmental Pollutions (2013).
  • Larson, E., S. Earl, E. Hagen, R. Hale, H. Hartnett, M. McCrackin, M. McHale, and N. Grimm. Beyond restoration and into design: hydrologic alterations in aridland cities. Resilience in Ecology and Urban Design: Linking Theory and Practice for Sustainable Cities (2013).
  • A. Dutta, G. Hamilton, H. Hartnett, A. Jones. Modeling [NiFe]-hydrogenase: development of a synthetic methodology for construction of heterometallic complexes in a peptide scaffold. Inorganic Chemistry (2012).
  • Loaicono, S., D. Meyer-Dombard, J. Havig, A. Poret-Peterson, H. Hartnett, and E. Shock. Evidence for high-temperature in situ nifH transcription in an alkaline hot spring of Lower Geyser Basin, Yellowstone National Park. Environmental Microbiology (2012).
  • R. Miller-Coleman, C. Ross, J. Dodsworth, E. Shock, H. Hartnett, A. McDonald and B. Hedlund. Korarchaeota diversity, biogeography, and abundance in Yellowstone and Great Basin hot springs and prediction of Korarchaeota-permissive springs based on machine learning. PLoS ONE (2012).
  • Yang, Z., I. Gould, L. Williams, H.E. Hartnett, E. Shock. The central role of ketones in reversible and irreversible organic functional group transformations. Geochimica et Cosmochimica Acta (2012).
  • S. Brantley, P. Megonigal, F. Scatena, Balogh-Brunstad A., R. Barnes, M. Bruns, P. van Cappellen, K. Dontsova, H. Hartnett, T. Hartshorn, A. Heimsath, B. Herndon, L. Jin, K. Keller, J. Leake, B. McDowell, R. Meinzer, T. Mozdzer, S. Petsch, J. Pett-Ridge, K. Pregitzer, P. Raymond, C. Riebe, K. Shumaker, A. Sutton-Greir, R. Walter, and K. Yoo. Twelve testable hypotheses on the geobiology of weathering. Geobiology (2011).
  • Williams, L., J. Holloway, B. Canfield, C. Glein, H. Hartnett, J. Dick, and E. Shock. Birth of biomolecules from the warm wet sheets of clays near spreading centers. Earliest Life on Earth: Habitats, Environments and Methods of Detection (2011).
  • Hartnett, H.E. and Hamilton, G. A. Black carbon in Phoenix-area soils: Distribution and relationship with land use across a desert city. Geochimica Cosmochimica Acta (2010).
  • Roy S., Shinde, S. Hamilton, G., Hartnett, H.E., Jones, A. Artificial [FeFe] hydrogenase: On resin modification of an amino aid to anchor a diiron-hexacarbonyl cluster in a peptide framework. European Journal of Inorganic Chemistry (2010).
  • Beraldi-Campesi, Hartnett, H.E., Anbar, A., Garcia-Pichel, F. Effects of biological soil crusts on soil elemental concentrations: implications for biogeochemistry and as traceable biosignatures of ancient life on land. Geobiology (2009).
  • Gallinari, M., O. Ragueneau., D.J. DeMaster, H. Hartnett, D. Rickert, C. Thomas. Influence of seasonal phytodetritus deposition on biogenic silica dissolution in marine sediments-Potential effects on preservation. Deep-Sea Research (2008).
  • Hilairy Hartnett, S Boehme, C Thomas, D De Master, C Smith. Benthic oxygen fluxes and denitrification rates from high-resolution porewater profiles from the Western Antarctic Peninsula Continental Shelf. Deep-Sea Research (2008).
  • H. Hartnett. Student Response Systems with Dr. Hilairy Hartnett (001a, 001b). (2008).
  • S Seitzinger, H. Hartnett, R Lauck, M Mazurek, T Minegishi. Bioavailability and chemical characterization of rainwater dissolved organic mater by ESI-MS. Limnology and Oceanography (2005).
  • Hartnett, Hilairy, Devol, Allan, Brandes, Jay, Chang, Bonnie. Oxygen isotope fractionation during respiration in marine sediments. (2005).
  • Hilairy Hartnett, A Devol. Role of a strong oxygen deficient zone in the preservation and degradation of organic matter: a carbon budget for the continental margins of NW Mexico and Washington State. Geochimica et Cosmochimica Acta (2003).
  • Hilairy Hartnett, S Seitzinger. High-resolution nitrogen gas profiles in sediment porewaters using a new membrane probe for membrane-inlet mass spectrometry. Marine Chemistry (2003).
  • A Devol, Hilairy Hartnett. Role of the oxygen minimum zone in transfer of organic carbon to the deep ocean. Limnology and Oceanography (2001).
  • J. Hedges, F. Hu, A. Devol, H. Hartnett, E. Tsamakis, R. Keil. Sedimentary organic matter preservation: A test for selective degradation under oxic conditions. American Journal of Science (1999).
  • H. Hartnett, D. Childers.  Water quality monitoring in Tempe Town Lake, Tempe, AZ, ongoing since 2005.  Environmental Data Initiative (2018).
  • D. Hannah, H. Hartnett.  Monsters of the Deep.  A Year Without A Winter (2018).
  • K. Robinson, I. Gould, K. Fecteau, H. Hartnett, L. Williams,  E. Shock.  Deamination reactions under acidic hydrothermal conditions.  Geochimica et Cosmochimica Acta (2018).
  • C. Bockisch, E. Lorance, H. Hartnett, E. Shock, I. Gould.  Kinetics and mechanisms of dehydration of secondary alcohols under hydrothermal conditions.  ACS Earth and Space Chemistry (2018).
  • D. Richter, S. Billings, P. Groffman, E. Kelly, K. Lohse, W. McDowell, C. Riebe, W. Silver, T. White, S. Anderson, S. Brantley, Z. Brecheisen, O. Chadwick, H. Hartnett, S. Hobbie, C. Kazanski, D. Markewitz, K. O'Neill, P. Schroeder, A. Thomspon.  Ideas and Perspectives: Strengthening the biogeosciences in environmental research networks.  Biogeosciences (2018).
  • Z. Yang, I. Gould, L. Williams, H. Hartnett, E. Shock.  Effects of iron-containing minerals on hydrothermal reactions of ketones.  Geochimica Cosmochimica Acta (2018).
Research Activity: 
Summer 2021
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2021
Course NumberCourse Title
CHM 481Geochemistry
GLG 481Geochemistry
SES 493Honors Thesis
SES 499Individualized Instruction
GLG 598Special Topics
CHM 598Special Topics
SES 692Research
SES 792Research
SES 799Dissertation
Fall 2020
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Summer 2020
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2020
Course NumberCourse Title
GLG 108Water Planet
SOS 182Water Planet
SES 493Honors Thesis
SES 499Individualized Instruction
SES 692Research
SES 792Research
SES 799Dissertation
Fall 2019
Course NumberCourse Title
CHM 302Environmental Chemistry
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2019
Course NumberCourse Title
SES 492Honors Directed Study
CHM 494Special Topics
SES 494Special Topics
GLG 494Special Topics
GLG 598Special Topics
SES 598Special Topics
CHM 598Special Topics
SES 692Research
SES 792Research
SES 799Dissertation
Fall 2018
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Summer 2018
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2018
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Fall 2017
Course NumberCourse Title
SES 792Research
SES 799Dissertation
Summer 2017
Course NumberCourse Title
SES 692Research
SES 792Research
SES 799Dissertation
Spring 2017
Course NumberCourse Title
CHM 481Geochemistry
GLG 481Geochemistry
SES 499Individualized Instruction
AST 592Research
GLG 592Research
GLG 598Special Topics
CHM 598Special Topics
GLG 599Thesis
GLG 692Research
SES 692Research
AST 692Research
SES 792Research
GLG 792Research
AST 792Research
SES 799Dissertation
AST 799Dissertation
GLG 799Dissertation
Fall 2016
Course NumberCourse Title
BIO 325Oceanography
GLG 325Oceanography
CHM 385Oceanography
GLG 592Research
BIO 598Special Topics
GLG 599Thesis
SES 692Research
GLG 692Research
AST 692Research
SES 792Research
GLG 792Research
AST 792Research
SES 799Dissertation
GLG 799Dissertation
AST 799Dissertation
Presentations: 
  • H. Hartnett, J. Shipp, I. Gould, L. Williams, E. Shock. Sphalerite is a geochemical catalyst for carbon-hydrogen bond activation. Gordon Research Conference: Organic Geochemistry. Aug. 2014 (Aug 2014).
  • H. Hartnett and G. A. Hamilton. Photochemical and biological lability of soot black carbon in soils from Phoenix, AZ. Goldschmidt2014 Conference, Sacramento, CA (Jun 2014).
  • H. Hartnett, Z. Smith, M. Bowman, M. Raleigh, G. Pavlovic. Climate and water management effects on inputs of terrestrial and aquatic DOM to an urban lake. 2014 Joint Aquatic Sciences Meeting, Portland, OR (May 2014).
  • K. Noonan, A. Anbar, F. Garcia-Pichel, H. Hartnett. Biological Soil Crusts are Early Colonizers of Extreme Environments and Alter Metal Solubility and Soil Fertility. Society of Mining Engineers Meeting, 2014 (Feb 2014).
  • H. Hartnett, Z. Smith, M. Bowman, M. Raleigh. Transformation of DOC in the Colorado River: Implications for export of labile carbon from rivers. AGU Ocean Sciences Meeting, Honolulu, HI (Feb 2014).
  • K.Robinson; E. Shock; H. Hartnett; L. Williams; I. Gould. Hydrothermal Reactivity of Amines. 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec (Dec 2013).
  • K. Fecteau, I. Gould; H.E. Hartnett; L. Williams; E. Shock. The Kinetic Behavior of Benzaldehyde under Hydrothermal Conditions. 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec (Dec 2013).
  • L. Vanderkluysen; H. E. Hartnett; A. B. Clarke; M. R. Burton. Origin of fluids and eruption dynamics at LUSI mud volcano (East Java, Indonesia). 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec (Dec 2013).
  • H. Hartnett, J. Coe, Z. Smith. Fluorescence characterization of dissolved organic carbon (DOC) from marine and terrestrial hydrothermal systems. 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec (Dec 2013).
  • H. Dong; H. Jiang; W. Hou; S. Wang; Q. Huang; B. Briggs; L. Huang; W. Hust; B. Hedlund; C. Zhang; H. Hartnett; P. Dijkstra; B. Hungate. Linking geochemistry to microbial ecology in hot springs: examples from southeastern Asia (Invited). 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec (Dec 2013).
  • J. Oiler, E.L. Shock, H.E. Hartnett, H. Yu. MEMS harsh environment sensor array-enabled hot spring mapping. IEEE Sensors 2013, Baltimore, MD, 4-6 Nov (Nov 2013).
  • J. Oiler, E.L. Shock, H.E. Hartnett, H. Yu. Micro-sensor array-enabled hot spring mapping. Goldschmidt2013 Conference, Florence, Italy (Aug 2013).
  • J. Ishibashi, Y. Miyoshi, H. Inoue, C. Yeats, S. Hollis, J. Corona, S. Bowden, S. Yang, G. Southam, Y. Masaki, H. Hartnett, IODP Expedition 331 Scientists. Subseafloor structure of a submarine hydrothermal system within volcaniclastic sediments: a modern analogue for ‘Kuroko-type’ VMS. 12th SGA Biennial Meeting, Upsala, Sweden (Aug 2013).
  • J. Coe, H. Hartnett, Z. Smith, G. Hamilton. Dissolved organic carbon characterization by 3D fluorescence and parallel factor (PARAFAC) analysis. 2nd PIRE Scientific Meeting. Yunnan University, Kunming, China (Jun 2013).
  • H. Hartnett, J. Coe, Z. Smith, G. Hamilton. Overview of the geochemistry of Tengchong hot springs - sources and dynamics of dissolved organic carbon. 2nd PIRE Scientific Meeting. Yunnan University, Kunming, China. 2nd PIRE Scientific Meeting. Yunnan University, Kunming, China (Jun 2013).
  • S. Roy, L. Gan, A. Dutta, G. Hamilton, T. Groy, H. Hartnett, A. Jones. Artificial hydrogenases: Utilization of peptide and redox non-innocent ligands in [FeFe] and [NiFe] complexes. (668-ENFL). 245th ACS Nat’l Meeting. New Orleans, LA (Apr 2013).
  • J. Ramos and H. Hartnett. Linking terrestrial land-cover with aquatic biogeochemical properties in the Colorado river system (#11457). 2013 ASLO Aquatic Sciences Meeting, New Orleans, LA (Feb 2013).
  • H.E. Hartnett. Investigating carbon transport and transformation in the Colorado River through field-based teaching. (#11100). 2013 ASLO Aquatic Sciences Meeting, New Orleans, LA (Feb 2013).
  • Z. Smith, M. Bowman, M. Raleigh, J. Coe, H. Hartnett. Distribution and fluorescence characterization of dissolved organic carbon in the Colorado River. (#11105). 2013 ASLO Aquatic Sciences Meeting, New Orleans, LA (Feb 2013).
  • M. Bowman, M. Raleigh, Z. Smith, J. Coe, H. Hartnett. Photoreactivity of dissolved organic carbon in the Colorado River. (#11573). 2013 ASLO Aquatic Sciences Meeting, New Orleans, LA (Feb 2013).
  • M. Raleigh, M. Bowman, Z. Smith, J. Coe, H. Hartnett. Microbial bioavailability of dissolved organic carbon in the Colorado River. (#11575). 2013 ASLO Aquatic Sciences Meeting, New Orleans, LA (Feb 2013).
  • Loÿc Vanderkluysen; Michael R. Burton; Amanda B. Clarke; Hilairy E. Hartnett; Jean-Francois Smekens. Periodic gas release from the LUSI mud volcano (East Java, Indonesia). 2012 AGU Fall Meeting, San Francisco, CA (Dec 2012).
  • Amisha T. Poret-peterson; Stephen J. Romaniello; Maitrayee Bose; Peter Williams; James J. Elser; Everett Shock; Ariel D. Anbar; Hilairy E. Hartnett. Nitrogen assimilation by single cells in hot springs. 2012 AGU Fall Meeting, San Francisco, CA (Dec 2012).
  • Y. Masaki, H. Hartnett, and M. Kinoshita. Hydrothermal regime of the Iheya-North hydrothermal field inferred from surface heat flow data and in-situ temperature measurement, and numerical modeling. IODP Leg 331 Post Cruise meeting, Kona, HI (Nov 2012).
  • H. Hartnett. Characterization of interstitial water dissolved organic carbon (DOC) and nitrogen in cores from the Iheya North hydrothermal field, IODP Leg 331. IODP Leg 331 Post-cruise Meeting, Kona, HI (Nov 2012).
  • G.A. Hamilton and H. E. Hartnett. Photo-oxidation of soot black carbon in Central Arizona. 2012 LTER All Scientists Meeting. Estes Park, CO (Sep 2012).
  • K. Noonan, A. Anbar, F. Garcia-Pichel, A. Poret-Peterson, H. Hartnett. Nine siderophore-producing microorganisms identified in biological soil crusts. 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • J. Shipp, H. Hartnett, I. Gould, E. Shock, L. Williams. Reversible interconversion between alkanes, alkenes, alcohols and ketones under hydrothermal conditions. 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • Z. Yang, H. Hartnett, I. Gould, E. Shock, L. Williams. Pathways and mechanisms for hydrothermal reactions of ketones. 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • H. Hartnett. Chasing carbon down the Colorado River: mid-stream challenges to engaging undergraduates in field-based research. 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • L. Vanderkluysen, A. Clarke, H. Hartnett. Cyclic activity of the LUSI mud volcano (East Java, Indonesia). 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • H. Hartnett, L. Vanderkluysen, A. Clarke, and J-F Smekens. Fluid geochemistry of the LUSI mud volcano (East Java, Indonesia) and implications for eruption dynamics. 2011 AGU Fall Meeting. San Francisco, CA (Dec 2011).
  • H. Hartnett. Developing a geochemical context for the US-China collaborative investigation of hot springs in the Tengchong Geothermal Region, Yunnan Province, China. Thermophiles 2011. Big Sky, Montana (Sep 2011).
  • S. Romaniello, H. Hartnett, A. Anbar, J. Elser, E. Shock. Nitrogen limitation in extremophilic hydrothermal ecosystems of Yellowstone National Park. Goldschmidt2011 Conference, Prague, Czech Republic (Aug 2011).
  • H. Hartnett, L. Vanderkluysen, A. Clarke. Evolution of the LUSI mud volcano: fluid chemistry and remote sensing. Goldschmidt2011 Conference, Prague, Czech Rep (Aug 2011).
  • H. Hartnett. Major-element and trace-element biogeochemistry in contrasting hydrothermal ecosystems: Tengchong, P.R.C. and Yellowstone National Park, U.S.A. 1st International Conference on Geomicrobial Ecotoxicology, Wuhan, China (May 2011).
  • H. Hartnett. Major-element and trace-element biogeochemistry in contrasting hydrothermal ecosystems: Tengchong, P.R.C. and Yellowstone National Park, U.S.A. Yunnan University Workshop on Geobiology, Kunming, China (May 2011).
  • H. Hartnett. Provenance of fluids from the LUSI Mud Volcano. Surabaya, Indonesia (May 2011).
  • H. Hartnett. Carbon and nitrogen dynamics in hydrothermal ecosystems: insights from the lab and the field. Geological Sciences Colloquium, University of Nevada Las Vegas (Apr 2011).
  • C. Ross, R. Miller-Coleman, J. Dodsworth, E. Shock, H. Hartnett, A. McDonald, and B. Hedlund. A support vector classifier for Korarchaeota containing hotsprings. International Society for Computational Biology Meeting (Dec 2010).
  • H. Hartnett and A. Hamilton. Black carbon in Phoenix-area soils: distribution and relationship with land use across a desert city. Goldschmidt 2010 Conference (Jun 2010).
  • J. Holloway, L. Williams, B. Canfield, J. Dick, C. Glein, H. Hartnett, and E. Shock. Abiotic organic synthesis in clays. Abiotic organic synthesis in clays. Goldschmidt 2010 Conference (Jun 2010).
  • Z. Yang, I. Gould, L. Williams, H. Hartnett, and E. Shock. Reversible functional group interconversion in organic hydrothermal reactions. Goldschmidt 2010 Conference (Jun 2010).
  • C. Glein, I. Gould, L. Williams, H. Hartnett, and E. Shock. Mechanistic organic chemistry of carboxylic acids. Goldschmidt 2010 Conference (Jun 2010).
  • J. Shipp, H. Hartnett, I. Gould, E. Shock, and L. Williams. Mineral effects on the interconversion between alkanes and alkenes in hydrothermal systems. Goldschmidt 2010 Conference (Jun 2010).
  • H. Hartnett. Characterization of dissolved organic carbon in aquatic ecosystems. NOAA-NMFS Hatfield Marine Science Center, Newport, OR. NOAA-NMFS Hatfield Marine Science Center Seminar (May 2010).
  • H. Hartnett. Nitrogen Cycling in Yellowstone National Park Hot Springs. US-China Geomicrobiology Workshop (May 2010).
  • Hartnett. H. Investigations of carbon and nitrogen cycling in Yellowstone National Park hot springs. ICG2010 – International Geobiology Conference. Wuhan, China (May 2010).
  • H. Hartnett, S. Romaniello, B. Johnson, M. Kyle, T. Anderson, A.D. Anbar, J. Elser, E. Shock. Geochemicial evidence for denitrification in a Yellowstone National Park hot spring. Abscicon2010 (Apr 2010).
  • K. ALexander, D. Lui, T. Viliborghi, A.D. Anbar, F. Garcia-Pichel, H.E. Hartnett. Response of biological soil crusts to porewater metal additions. Abscicon2010 (Apr 2010).
  • K. ALexander, D. Lui, A. Anbar, F. Garcia-Pichel, H. Hartnett. Effect of nitrogen and metal additions on nitrogen fixation activity in biological soil crusts. 2009 AGU Fall Meeting (Dec 2009).
  • H. Hartnett, D. Lui, L. Puglisi, J. Shipp, H. Waterman. Effects of water management and monsoon storms on dissolved organic carbon (DOC) content and composition in an urban lake. 2009 AGU Fall Meeting (Dec 2009).
  • N. Grimm, E. Cook, S. Earl, R. Hale, S. Hall, H. Hartnett, D. Iwaniec, E. Larson, M. McHale, R. Sponseller. Ecosystem biogeochemical function and services in an urbanizing desert region. 2009 AGU Fall Meeting (Dec 2009).
  • E. Larson, S. Earl, E. Hagen, R. Hale, H. Hartnett, M. McCrackin, M. McHale, N. Grimm. Arid urban aquatic ecosystems: A case study of ecology, design, and restoration in the Central Arizona-Phoenix LTER. LTER Network All Scientists Meeting, Estes Park, CO (Sep 2009).
  • A. Hamilton and H. Hartnett. Black carbon concentration and isotopic composition in central Arizona-Phoenix. LTER NEtwrok All Scientists Meeting (Sep 2009).
  • H. Hartnett, J. Shipp, D. Lui. Effects of water management and monsoon storms on dissolved organic carbon (DOC) content and composition in an urban lake. LTER Network All Scientists Meeting (Sep 2009).
  • H. Hartnett, J. Shipp, D. Lui, H. Waterman. Temporal patterns in dissolved organic carbon content and composition in an urban lake: effects of water management and monsoon rains. 2009 Dynamic Deserts Conference, Tempe, AZ (Feb 2009).
  • A. Hamilton and H. Hartnett. Black carbon concentration and isotopic composition in central Arizona-Phoenix. Black carbon concentration and isotopic composition in central Arizona-Phoenix. CAP LTER 12th Annual Symposium (Jan 2009).
  • Hamilton, A. and Hartnett, H. Distribution and composition of black carbon in Phoenix-area soils. CAP LTER 11th Annual Symposium (Jan 2009).
  • Shipp, J., Hartnett, H., Lui, D., Waterman, H. Temporal trends in trace element dynamics in Tempe Town Lake, Tempe, AZ. CAP LTER 11th Annual Symposium (Jan 2009).
  • Hartnett, H., J. Shipp, D. Lui, H. Waterman. Effects of water management and monsoon storms on dissolved organic carbon dynamics in Tempe Town Lake, Tempe, AZ. CAP LTER 11th Annual Symposium (Jan 2009).
  • H. Hartnett, J. Shipp, D. Lui, H. Waterman. Seasonal and interannual changes in DOC content and composition in an urban lake: effects of water management and monsoon storms. 2009 ASLO Aquatic Sciences Meeting, Nice, France (Jan 2009).
  • A. Hamilton and H. Hartnett. Black carbon concentrations in urban and rural arid-land soils. 2008 AGU Fall Meeting (Dec 2008).
  • K. Alexander, A. Anbar, F. Garcia-Pichel, H. Hartnett. Nutrient and metal limitation in cyanobacterial soil crusts. EBIC Gordon Research Conference (Jul 2008).
  • M. Kelly and H. Hartnett. Seasonal processes affect the composition of dissolved organic carbon in an urban lake. ACS 235th National Meeting (May 2008).
  • H. Hartnett, K. Alexander, A. Anbar, F. Garcia-Pichel. Production of dissolved organic carbon by desert biological soil crusts during simulated rainfall experiments. AbSciCon2008 (Mar 2008).
  • J. Lockard, H. Hartnett, J. Farmer. Biosignature capture and preservation in sulfate evaporites: Implications for mars exploration. AbSciCon2008 (Mar 2008).
  • Hartnett, Hilairy. Dissolved Organic Carbon in Tempe Town Lake: an update on a time-series. CAP LTER 10th Annual Symposium (Jan 2008).
  • Megan Kelly and Hilairy Hartnett. Temporal composition changes in DOC in Tempe Town Lake. CAP LTER 10th Annual Symposium (Jan 2008).
  • J. Lockhard, H. Hartnett, J. Farmer. Microbial Biosignature capture and preservation in sulfate evaporites. 2007 Fall GSA Meeting, Denver CO (Oct 2007).
  • Alexander, Kathryn, Hartnett, Hilairy, Anbar, Ariel, Garcia-Pichel, Ferran. Isotopic Composition of Organic and Inorganic Carbon in Desert Biological Soil Crust Systems. AGU Fall Meeting (Dec 2006).
  • Hartnett, Hilairy, Alexander, Kathryn, Shock, Everett, Klonowksi, Stan, Windman, Todd. Dissolved organic matter concentration and composition in hot spring ecosystems. AGU Fall Meeting (Dec 2006).
  • Hartnett, Hilairy, Brown, Bradley. Dissolved Organic Carbon Concentrations in Tempe Town Lake: biogeochemical & hydrologic processes. Tempe, AZ. CAP LTER 8th Annual Symposium (Jan 2006).
  • Brown, Bradley, Hartnett, Hilairy. Determination of Bulk Dissolved Organic Carbon Content in the Verde River-Reservoir System. CAP LTER 8th Annual Symposium (Jan 2006).
  • Hartnett, Hilairy. Characterization of Dissolved Organic Carbon in the Verde River system by Electrospray Ionization Mass Spectrometry. ASU-NSF Water Quality Center Spring Meeting
  • Hartnett, Hilairy. Potential biosignatures of Biological Soil Crusts. XI Argentinian Meeting of Sedimentology
  • Hartnett, Hilairy. From Trees to Seas: A cross system comparison of DON liability and composition. ASLO Meeting
  • Hartnett, Hilairy. Characterization of Dissolved Organic Carbon in the Verde River System by ESI Mass Spectrometry. ASU-NSF Water Quality Center Spring Meeting
  • Hartnett, Hilairy. Biogeochemistry of Desert Crusts: Organic Carbon and Trace Element Dynamics. Crust Day I
  • Hartnett, Hilairy. Dissolved organic carbon transformation in the Verde River: an assessment of compositional change by ESI mass spectrometry. ASLO Meeting
  • Hartnett, Hilairy. Dissolved Organic Matter Concentration and Composition in Yellowstone Hot Spring Ecosystems. Hot Life in the Desert II
  • Hartnett, Hilairy. Role of phagotrophic protists in shaping the spectrum of marine DOC. ASLO Meeting
  • Hartnett, Hilairy. what’s new with the goo? Bulk DOC in YNP hot springs. GEOPIG/Yellowstone
  • Kelly, Megan, Hartnett, Hilairy. Temporal Changes in Dissolved Organic Carbon in Tempe Town Lake. CAP LTER 9th Annual Symposium
Professional Associations: 
  • President, Organic Geochemistry Division of the Geochemical Society (2020-2022)
  • Secretary, Organic Geochemistry Division of the Geochemical Society (2014-2019)
  • Board Member, Geochemical Society (2014-19, 2020-22)
Service: 
  • School of Earth and Space Exploration, Associate Director for Graduate Initiatives (2019-present)
  • School of Earth and Space Exploration, Co-Associate Director for Inclusive Communitities (2019-2020)
  • School of Molecular Sciences, Personnel and Budget Committee (2018-2021)
  • School of Molecular Sciences, Director Search Committee (2018-2019)
  • CLAS First Year Forward Initiative, Committee Member (2014 - Present)
  • School of Earth and Space Exploration, Faculty Search Committee: Southwest Boarderlands Initiative (2014-17)
  • School of Earth and Space Exploration, Associate Director of Undergraduate Programs (2014 - 2018)
  • Earth and Space Exploration Day, Scientist (2013 - Present)
  • Faculty Honors Advisor, Barrett the Honors College at ASU, Advisor (2013 - Present)
  • Night of the Open Door - AZ Sci Tech Festival, presenter/demonstrator (2013 - Present)
  • SESE Director Search Comittee, Member (2013 - Present)
  • Earth and Space Exploration Day, Scientist (2012 - Present)
  • Future STEM Sun Devil Family Night, Speaker (2012 - Present)
  • School of Earth and Space Exploration - Ad Hoc committee on webtool development, member (2012 - Present)
  • School of Earth and Space Exploration - committee on Computing, member (2012 - Present)
  • Steering Committee - ASU Space Grant, member (2012 - Present)
  • Night of the Open Door - AZ Sci Tech Festival, presenter/demonstrator (2012 - Present)
  • School of Earth and Space Exploration - Committee on Computing, Member (2011 - Present)
  • Earth and Space Exploration Day, Scientist (2011 - Present)
  • Chemistry and Biochemistry, Graduate Student's Liason (2011 - Present)
  • Chemistry and Biochemistry - Committee on Development, Outreach and Alumni Relations, member (2011 - Present)
  • School of Earth and Space Exploration - PostDoctoral Fellowship Committee, Chair (2011 - Present)
  • AZ Channel 13, oceanographic expert (2010 - Present)
  • MUDMax Film Premiere, Phoenix AZ, Expert Panelist (2009 - Present)
  • Earth and Space Exploration Day, Scientist (2009 - Present)
  • School of Earth and Space Exploration Undergraduate Program Committee, member (2009 - Present)
  • Changing Hands Bookstore - Ocean Adventures, Oceanographer (2009)
  • Earth and Space Exploration Day, Scientist (2008 - Present)
  • Center for Bioenergy & Photosynthesis, Executive Committee Member (2007 - 2018)
  • Chemistry & Biochemistry, Committee on undergraduate research and mentoring (2007 - Present)
  • Chemistry & Biochemistry, Seminars Committee Member (2007 - Present)
  • Chemistry & Biochemistry, Strategic Planning - Chemistry & Sustainability (2007 - Present)
  • School of Sustainability, Faculty Search Committee (2007 - Present)
  • Geochemical Society, Joint Fellows (GS/EAG) Selection Committee (2014 - 2017)
  • School of Earth and Space Exploration - Graduate Oversight Committee, Chair (2012 - 2015)
  • School of Earth and Space Exploration - Graduate Oversight Committee, Co-Chair (2012 - 2015)
  • NASA Exobiology Review Panel, Member (2013)
  • Chemistry and Biochemistry, Graduate Student's Liason (2011 - 2013)
  • Frontiers in Terrestrial Microbiology, Review Editor (2010 - 2013)
  • Intel International Science and Engineering Fair, Special Awards Judge (2013)
  • ASU Higher-Learning Commission Re-accreditation and Self Study, Criterion Team Leader (2011 - 2013)
  • American Geophysical Union, Session Convener
  • School of Earth and Space Exploration Curriculum Committee, member (2008 - 2009)
  • School of Earch and Space Exploration, Faculty Search committee member (2007 - 2008)
  • CAP LTER, Roundtable Discussion Panelist (2008)
  • NASA Exobiology Review Panel, Member (2007)
  • Chair Search Committe - Chemistry & Biochemistry, Member (2006 - 2007)
  • Chemistry & Biochemistry, Committee on Undergraduate Research and Mentoring (2006 - 2007)
  • Organizing Committee 2007 National Meeting (Aquatic Chemistry), American Society of Limnology and Oceanography, Member (2004 - 2007)
  • Chemistry & Biochemistry Department - Committee on Undergraduate Student Research and Mentoring, Member (2004 - 2005)
Expertise Areas: 
Biogeochemistry
Geochemical Cycles
Geochemistry
Oceanography
Transdisciplinary
Water