Ariel Anbar is an isotope geochemist and President's Professor at Arizona State University. He has published over 180 refereed papers on topics ranging from the origins of Earth's atmosphere to detecting life on other worlds to diagnosing human disease.[1]

Ariel D. Anbar
Alma materHarvard University AB 1989, California Institute of Technology PhD 1996
AwardsArthur L. Day Medal (2020), Donath Medal (2002)
Scientific career
InstitutionsArizona State University
Doctoral advisorGerald J. Wasserburg
Websitehttps://www.anbarlab.org/

Education and career

Anbar was born in Rehovot, Israel and raised in Palo Alto, California and Amherst, New York. He received a A.B. in Geological Sciences and Chemistry from Harvard University in 1989.[2] While at Harvard, he worked under the supervision of Heinrich Holland and conducted experiments that suggested the importance of photochemical oxidation in Archean oceans, especially as a possible source of manganese oxides before the Great Oxidation Event.[3] He received a Ph.D. in geochemistry from the California Institute of Technology in 1996, advised by Gerald Wasserburg, where he developed methods for ultra-sensitive determination of rhenium and iridium in seawater. He was on the faculty of the Department of Earth and Environmental Sciences at the University of Rochester from 1996 to 2004. Since 2004, he has been on the faculty in the School of Earth and Space Exploration and the School of Molecular Sciences at Arizona State University.[2]

Research

Anbar's research group uses multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) to study natural variations in the “non-traditional” stable isotope abundances of transition metals as biomarkers and as probes of ancient ocean oxygenation.[4] His group was the first to report natural fractionation of molybdenum isotopes,[5] including how and why molybdenum isotopes fractionate during adsorption to manganese oxides.[6] This work provided a foundation for the use of molybdenum isotopes to study ancient ocean redox change.[7] Anbar and colleagues discovered a "whiff of oxygen" fifty million years before the Great Oxidation Event[8][9]

Anbar's group has also worked on iron isotopes, demonstrating abiotic fractionation in low and high temperature systems.[10] They have also worked to develop the uranium isotope system as a paleoredox proxy, opening up the carbonate sedimentary record for investigation of changes in ocean oxygenation and their linkages to evolution.[11]

Anbar has also been involved in development of method to use calcium isotopes to study bone disease.[12][13]

Leadership

Anbar led the NASA Astrobiology Institute program at Arizona State University from 2009 to 2015.[14] He served as President-Elect and President of the Biogeosciences Section of the American Geophysical Union from 2015 to 2019.[15] He currently directs the Center for Education Through Exploration at Arizona State University, which is reinventing digital learning around curiosity, exploration, and discovery.[16][17]

Awards

Anbar is a Fellow of the Geological Society of America, the Geochemical Society, the European Association of Geochemistry, and the American Geophysical Union.[18] In 2002, he was awarded the Young Scientist Award (Donath Medal) from the Geological Society of America.[19][20] In 2014, he was appointed a Howard Hughes Medical Institute Professor in recognition of his work in digital learning innovation.[21] In 2017, he was named one of 10 “teaching innovators” by the Chronicle of Higher Education.[22] He was the Endowed Biogeochemistry Lecturer at the Goldschmidt Geochemistry Conference in 2017,[23] and received the Samuel Epstein Science Innovation Award from the European Association of Geochemistry in 2019.[24] He received the Arthur L. Day Medal from the Geological Society of America in 2020.[25][26] He is a Distinguished Sustainability Scholar in the Julie Ann Wrigley Global Institute of Sustainability at Arizona State University.

References

  1. ↑ "Ariel Anbar". scholar.google.com. Retrieved 2021-10-18.
  2. 1 2 "Ariel Anbar | iSearch". isearch.asu.edu. Retrieved 2021-10-18.
  3. ↑ Anbar, A.D.; Holland, H.D. (1992). "The photochemistry of manganese and the origin of banded iron formations". Geochimica et Cosmochimica Acta. 56 (7): 2595–2603. Bibcode:1992GeCoA..56.2595A. doi:10.1016/0016-7037(92)90346-K. ISSN 0016-7037. PMID 11537803.
  4. ↑ Anbar, Ariel D.; Rouxel, Olivier (2007). "Metal Stable Isotopes in Paleoceanography". Annual Review of Earth and Planetary Sciences. 35 (1): 717–746. Bibcode:2007AREPS..35..717A. doi:10.1146/annurev.earth.34.031405.125029. ISSN 0084-6597.
  5. ↑ Barling, J.; Arnold, G.L.; Anbar, A.D. (2001). "Natural mass-dependent variations in the isotopic composition of molybdenum". Earth and Planetary Science Letters. 193 (3–4): 447–457. Bibcode:2001E&PSL.193..447B. doi:10.1016/S0012-821X(01)00514-3. ISSN 0012-821X.
  6. ↑ Barling, J.; Anbar, A.D. (2004). "Molybdenum isotope fractionation during adsorption by manganese oxides". Earth and Planetary Science Letters. 217 (3–4): 315–329. Bibcode:2004E&PSL.217..315B. doi:10.1016/S0012-821X(03)00608-3. ISSN 0012-821X.
  7. ↑ Arnold, G. L.; Anbar, A. D.; Barling, J.; Lyons, T. W. (2004). "Molybdenum Isotope Evidence for Widespread Anoxia in Mid-Proterozoic Oceans". Science. 304 (5667): 87–90. Bibcode:2004Sci...304...87A. doi:10.1126/science.1091785. ISSN 0036-8075. PMID 15066776. S2CID 130579844.
  8. ↑ Anbar, Ariel D.; Duan, Yun; Lyons, Timothy W.; Arnold, Gail L.; Kendall, Brian; Creaser, Robert A.; Kaufman, Alan J.; Gordon, Gwyneth W.; Scott, Clinton; Garvin, Jessica; Buick, Roger (2007). "A Whiff of Oxygen Before the Great Oxidation Event?". Science. 317 (5846): 1903–1906. Bibcode:2007Sci...317.1903A. doi:10.1126/science.1140325. ISSN 0036-8075. PMID 17901330. S2CID 25260892.
  9. ↑ "Discovery challenges timeline of oxygen on Earth". phys.org. Retrieved 2021-10-18.
  10. ↑ Anbar, A. D.; Roe, J. E.; Barling, J.; Nealson, K. H. (2000). "Nonbiological Fractionation of Iron Isotopes". Science. 288 (5463): 126–128. Bibcode:2000Sci...288..126A. doi:10.1126/science.288.5463.126. ISSN 0036-8075. PMID 10753114.
  11. ↑ Romaniello, S.J.; Herrmann, A.D.; Anbar, A.D. (2013). "Uranium concentrations and 238U/235U isotope ratios in modern carbonates from the Bahamas: Assessing a novel paleoredox proxy". Chemical Geology. 362: 305–316. Bibcode:2013ChGeo.362..305R. doi:10.1016/j.chemgeo.2013.10.002. ISSN 0009-2541.
  12. ↑ Morgan, Jennifer L. L.; Skulan, Joseph L.; Gordon, Gwyneth W.; Romaniello, Stephen J.; Smith, Scott M.; Anbar, Ariel D. (2012). "Rapidly assessing changes in bone mineral balance using natural stable calcium isotopes". Proceedings of the National Academy of Sciences. 109 (25): 9989–9994. Bibcode:2012PNAS..109.9989M. doi:10.1073/pnas.1119587109. PMC 3382538. PMID 22652567.
  13. ↑ "Stable isotopes offer novel methods of disease detection". www.earthmagazine.org. Retrieved 2021-07-21.
  14. ↑ "NASA Astrobiology Institute". astrobiology.nasa.gov. Retrieved 2021-10-18.
  15. ↑ "NASA Astrobiology". astrobiology.nasa.gov. Retrieved 2021-10-18.
  16. ↑ "Colleges are Reimagining Learning in the COVID Age". Fierce Education. 7 October 2020. Retrieved 2021-10-18.
  17. ↑ "ASU uses NASA data to create middle and high school program | Inside Higher Ed". www.insidehighered.com. Retrieved 2021-10-18.
  18. ↑ "ASU President's Professor Ariel Anbar elected as an AGU fellow". ASU News. 2021-09-28. Retrieved 2021-10-18.
  19. ↑ "NASA Astrobiology". astrobiology.nasa.gov. Retrieved 2021-10-18.
  20. ↑ "Young Scientist Award (Donath Medal)" (PDF). geosociety.org. p. 7. Retrieved 20 August 2023.
  21. ↑ "ASU faculty member named Howard Hughes Medical Institute Professor". ASU News. 2014-06-30. Retrieved 2021-10-18.
  22. ↑ "Innovators: 10 Classroom Trailblazers". www.chronicle.com. Archived from the original on 2020-08-31. Retrieved 2021-10-18.
  23. ↑ "Society News" (PDF). Elements Magazine. June 2017. Retrieved 2021-10-17.
  24. ↑ "ASU geochemist Ariel Anbar to receive 2019 European science innovation award". ASU News. 2019-04-29. Retrieved 2021-10-18.
  25. ↑ "Arthur L. Day Medal - 2020". www.geosociety.org. Retrieved 2021-10-18.
  26. ↑ "ASU President's Professor Ariel Anbar awarded medal from the Geological Society of America". ASU News. 2020-08-24. Retrieved 2021-10-18.
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