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Personnel Archive - 2014

2014 Board of Directors


Title / TermName (email) / Institution, CountryBio
01/2014 - 12/2015
Barbara Sherwood Lollar
University of Toronto, Canada
Barbara Sherwood Lollar (F.R.S.C.) obtained her Bachelor's at Harvard University (1985) and PhD at the University of Waterloo (1990). After completing a Postdoctoral Fellowship at University of Cambridge, United Kingdom she joined the University of Toronto in 1992. She is a University Professor in Geology, Director of the Stable Isotope Laboratory and Canada Research Chair in Isotopes of the Earth and Environment. Her specialty is stable isotope geochemistry - integrating carbon, hydrogen and noble gases to investigate microbial cycling of hydrocarbon contaminants in near surface aquifer; to delineate the sources and sinks of carbon dioxide, methane and hydrogen in the crust; and to investigate the role of subsurface microbiology in carbon cycling in the deep Earth with implications for astrobiology.
01/2014 - 12/2015
Laurie Reisberg
CRPG, France

Laurie Reisberg obtained her BSc at the University of Michigan in 1979 and her PhD from Lamont-Doherty Earth Observatory of Columbia University in 1988. After post-docs at the Institut du Physique du Globe in Paris and at Lamont-Doherty, she joined the Centre de Recherches Pétrographiques et Géochimiques, a research laboratory of the French national science agency (CNRS) and the Université de Lorraine, in Nancy, France. Her specialities are radiogenic isotopes and highly siderophile element geochemistry. In the early part of her career, her work was centered on mantle geochemistry, including studies of the formation and evolution of the non-cratonic lithosphere and of basaltic magmatism. She has also worked on erosion and how it is recorded in the marine radiogenic isotopic record, nucelosynthethic anomalies in meteorites, and the radiometric dating and source tracing of ore deposits and, most recently, of oils.

01/2014 - 12/2015
Richard Carlson
Carnegie Institution of Washington, USA
Richard Carlson obtained his BS in chemistry at the University of California, San Diego and PhD in earth science at the Scripps Institution of Oceanography. He joined the scientific staff of the Carnegie Institution of Washington's Department of Terrestrial Magnetism in 1981. His specialty is the field of trace element and isotope geochemistry and geochronology with research interests that include: timescales and mechanisms of crust formation and mantle differentiation on the terrestrial planets; nucleosynthetic isotope variability in early solar system materials, origin of large-volume volcanism; characteristics of the sub-continental mantle and its role in continent formation and preservation; and techniques for high precision chemical and isotope analysis. He is a Fellow of the Geochemical Society, American Academy of Arts & Sciences, and the American Geophysical Union.
01/2011 - 12/2016
Sam Savin
New College of Florida, USA
Sam Savin has applied stable isotope techniques to a wide range of problems related to the sedimentation, diagenesis and low-grade metamorphism of siliclastic sediments, and to weathering and soil formation. He has also worked on the reconstruction of paleoclimatic and paleoceanographic conditions of the past 100 million years, based on carbon and oxygen isotopic distributions in planktic and benthic foraminifera. For a number of years, in collaboration with physician colleagues, he used stable carbon isotopic tracers to study metabolic processes in human infants and mothers. In recent years he has also been active as an academic administrator, serving as Dean of Arts and Sciences at Case Western Reserve University and Provost at New College of Florida. Sam is now retired and consults on geochemical, environmental and administrative matters. He is a Geochemical Fellow.
(appointed to second term)
01/2014 - 12/2016
Anton Eisenhauer
GEOMAR, Germany
Anton (Toni) Eisenhauer is a professor of marine environmental geology and geochemistry at the Helmholtz Centre for Ocean Research Kiel in Kiel, Germany. He received a Diploma (1986) in physics and mathematics at the Ruprecht Karls University of Heidelberg, Germany and in 1989 also a doctoral degree (rer. nat.) in environmental physics. After a postdoctoral fellowship at Caltech from 1990 to 1992 in the group of Jerry Wasserburg, he started his own research group as an assistant professor at the Institute of Geochemistry at Göttingen University in Göttingen, Germany. In 1998 he was appointed as a full professor at the GEOMAR research center for marine geology which later became the Helmholtz Centre for Ocean Research Kiel. In recent years, Toni's research focused in general on the use of non-traditional, and in particular on the use of alkaline-earth, isotope systems (Ca, Mg, Sr) to solve marine geochemical problems related to organic and inorganic marine calcification as well as on the reconstruction of the chemical history of seawater including sealevel change.
OGD Chair
01/2014 - 12/2015
Katherine Freeman
Penn State University, USA
Kate Freeman is a Professor of Geosciences at the Pennsylvania State University. She is a graduate of Wellesley College, earned her M.S. and Ph.D. in geology at Indiana University, and she was a postdoctoral scholar at Skidaway Institute of Oceanography. Kate is a Fellow of the American Geophysical Union, the Guggenheim Foundation, the Geochemical Society, the American Academy of Microbiology and the Geological Society of America. She was elected to the U.S. National Academy of Sciences in 2013. Her research interests include isotopic biogeochemistry, paleoclimate proxies, and new methods in organic isotope analyses.
OGD Secretary
01/2014 - 12/2015
Hilairy Hartnett
Arizona State University, USA
Hilairy Hartnett is an Associate Professor in the School of Earth and Space Exploration and in the Department of Chemistry and Biochemistry at Arizona State University. She is a graduate of Vassar College, received her M.S. and Ph.D. degrees in Oceanography at the University of Washington, and was a postdoctoral scholar at the Institute of Marine and Coastal Sciences at Rutgers University. Her research interests include carbon and nitrogen cycling in marine, terrestrial and hydrothermal ecosystems; urban biogeochemistry; and the application of optical and mass spectrometry techniques for characterizing dissolved organic matter.
Senior Goldschmidt Officer RossStevenson_140x180.jpg
Ross Stevenson
Université du Québec à Montréal, Canada
Ross Stevenson is a professor of geochemistry at the Université du Québec à Montréal (UQAM) and director of the Geotop research centre for isotope geochemistry and geochronology. He obtained his BSc (1982) and MSc (1985) in geology from McGill University in Montreal and his PhD from the University of Arizona (1989). After completing a year of post-doctoral research at the Geological Survey of Canada, he joined UQAM in 1991. His research interests include the application of geochemistry and radiogenic isotope geochemistry to crust and mantle evolution, the origin and fate of continental crust, and characterising past and present environments in terms of these different reservoirs.
Junior Goldschmidt Officer renne_140x180.jpg
Paul Renne
Berkeley Geochronology Center, USA
Paul Renne is Director of the Berkeley Geochronology Center (BGC) and Professor in Residence at the University of California, Berkeley. He received his AB (1982) and PhD (1987) degrees at the University of California, Berkeley, and was a postdoctoral fellow at Princeton (1987-1989) before joining the Institute of Human Origins. Renne was the founding Director of the BGC in 1994 and joined the U.C. Berkeley faculty in 1995. His research emphasizes the refinement and application of Ar/Ar geochronology to large igneous provinces, mass extinctions, and human evolution. He received the Bowen Award of the American Geophysical Union (2005) and is a Fellow of the Geological Society of America.
GCA Executive Editor Norman_140x180.jpg
Marc Norman
Australian National University, Australia
Marc is a Senior Fellow at the Australian National University's Research School of Earth Sciences and the Executive Editor of GCA. He received a Ph.D. in Geology and Geophysics from Rice University in 1987. His research interests include the origin, evolution and impact history of the terrestrial planets, basaltic volcanism, ore deposit geochronology, and the geochemistry of dust and water in the environment.
Non-Officer Directors

The Board of Directors shall also consist of six (6) Non-Officer Directors.

TermName (email) / Institution, CountryBio
01/2010 - 12/2014* walker_140x180.jpg:
Richard Walker
University of Maryland, USA
Richard J. Walker is a professor in the Department of Geology, at the University of Maryland. He utilizes radiogenic isotopes and trace elements to conduct research in several areas of geo- and cosmo-chemistry including the chemical evolution of Earth's mantle, the formation and crystallization histories of early solar system planetesimals, the origin of ore deposits and the accretional and differentiation histories of Earth, Moon and Mars. He received a Ph.D. in geology from the State University of New York at Stony Brook in 1984. He did postdoctoral work at the U.S. National Bureau of Standards, the Carnegie Institution of Washington's Department of Terrestrial Magnetism, and the U. S. Geological Survey. He became a member of the faculty of the University of Maryland in 1990. He was the 1990 recipient of the Clarke Medal of the Geochemical Society. He is a Fellow of the American Geophysical Union, the European Association for Geochemistry and the Geochemical Society.
01/2012 - 12/2014** young_140x180.jpg:
Edward Young
University of California - Los Angeles, USA
Edward Young obtained a BA from the College of Wooster, an MS from Vanderbilt University, and the PhD from the University of Southern California. He was a postdoctoral fellow at the Carnegie Institution of Washington's Geophysical Laboratory for three years and then joined the faculty of Oxford University. After seven years at Oxford he moved to UCLA. His specialties revolve around the use of isotope ratios as tracers in terrestrial and extraterrestrial rocks, gases, and young stellar objects. His research includes: the birth environment of the solar system; the origins of meteorites; non-traditional stable isotope fractionation at high pressures and temperatures as tools for tracing planet differentiation; and development of new methods for isotope ratio analysis.
01/2012 - 12/2015 ewing_140x180.jpg:
Rodney Ewing
Stanford University, USA

Rod Ewing is the Frank Stanton Professor in Nuclear Security in the Center for International Security and Cooperation in the Freeman Spogli Institute for International Studies and a Professor in the Department of Geological and Environmental Sciences in the School of Earth Sciences at Stanford University. He is also the Edward H. Kraus Distinguished University Professor Emeritus at the University of Michigan, where he had faculty appointments in the Departments of Earth & Environmental Sciences, Nuclear Engineering & Radiological Sciences and Materials Science & Engineering. He is a Regents' Professor Emeritus at the University of New Mexico, where he was a member of the faculty from 1974 to 1997. Ewing serves on the Board of Governors of the Gemological Institute of America and the Science and Security Board of the Bulletin of the Atomic Scientists. He has published widely in mineralogy, geochemistry, materials science, nuclear materials, physics and chemistry. He is a founding Editor of the magazine,Elements, which is now supported by 17 earth science societies. In 2012, he was appointed by President Obama to chair the Nuclear Waste Technical Review Board.

01/2012 - 12/2015 jeandel_140x180.jpg:
Catherine Jeandel
University of Paris VII, France
Catherine Jeandel obtained her BS and PhD in geochemistry at the University of Paris VII. She entered CNRS in 1983, and developed marine geochemistry in France in the research group of J-F Minster which later became the LEGOS (laboratoire d'Etudes en géophysique et océanographie Spatiale in Toulouse, Fr). Her specialty is the field of trace element and isotope geochemistry in the ocean with research interests that include: source, transformation and sink of trace element and isotopes in the ocean, land-to-ocean element fluxes, tracing circulation and pathways of water masses, physical-géochemical ocean modelling and (of course) techniques for high precision chemical and isotope analysis. These interests conducted her to commit herself in building and promoting with others the internationally coordinated marine geochemistry effort: GEOTRACES. Catherine Jeandel is a fellow of the Geochemical Society, European and American Geophysical Union. She awarded Broze medallist at CNRS, Gold Research Woman in 2006 and french Legion d'Honneur in 2010.
01/2014 - 12/2016 Nakamura_140x180.jpg
Tomoki Nakamura
Tohoku University, Japan
Tomoki Nakamura is a professor of the laboratory for early solar system evolution at Division of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University in Japan. He received BS (1989), MS (1991) and doctorate degree in Science (1993) from the University of Tokyo. He was appointed as an assistant professor in a cosmochemistry laboratory at Kyushu University in 1993. He studied abroad at the solar system exploration division at National Aeronautics and Space Administration (NASA/JSC) and Max Planck Institute for Chemie at Mainz, Germany. After that, he was appointed as associate professor at Kyushu University in 2001, and became professor at Tohoku University in 2012. His research interests are mineralogy and isotope chemistry in meteorites and interplanetary dust particles. Based on the analysis he tries to elucidate the origin and early history of our solar system. Recently he concentrates exclusively on the study of small dust particles recovered from asteroid Itokawa by the Hayabusa space mission.
01/2014 - 12/2016 hawkesworth_140x180.jpg
Chris Hawkesworth
University of St. Andrews, UK

Chris Hawkesworth obtained his BA in Natural Sciences in Trinity College, Dublin and his D.Phil at the University of Oxford. He has held academic positions at the Open and Bristol Universities, and the Wardlaw Chair of Earth Sciences and the position of Deputy Principal at the University of St Andrews. His research interests are in isotope and trace element geochemistry across a range of areas that include: the generation and the evolution of the continental crust and the upper mantle; the generation of magmas along destructive plate margins, in ocean islands and continental flood basalts; the generation of base metal deposits associated with flood basalts and the Sudbury Igneous Complex; the application of short lived U-series isotopes to constrain the timescales of melt generation processes, the rates of transfer of material from the subducted slab, and the chronology of climate change and archaeological sites. He is a Fellow of the Geochemical Society, the American Geophysical Union, the Royal Society and the Royal Society of Edinburgh, and he holds an honorary DSc from the University of Copenhagen.

*Term extended one year to establish yearly rotation.
**Term shortened one year to establish yearly rotation.

2014 Publication Advisory Committee

The Publications Advisory Committee has been charged with 1) evaluating the status of the current publication activities of the Geochemical Society; 2) investigating if the mix of publications serves the various needs of the Society; and 3) investigate what alternative publishing activities should be considered.

Title/TermNameInstitution, Country, research field
(07/2012 - 06/2015)
Bernard Wood Oxford University, UK, experimental petrology
(07/2012 - 06/2015) Susan Brantley Pennsylvania State University, USA, environmental geochemistry
(07/2012 - 06/2015) Barbara Dutrow Louisiana State University, USA, fluid-rock interactions
(07/2012 - 06/2015) Shaun Hardy Carnegie Instutition of Washington, USA, library sciences
(07/2012 - 06/2015) Kai-Uwe Hinrichs University of Bremen, Germany, organic geochemistry
(07/2012 - 06/2015) Scott McLennan Stony Brook University, USA, planetary geochemistry
(07/2012 - 06/2015) Rainer Wieler ETH, Switzerland, cosmochemistry and meteoritics

2014 Joint Publications Committee

The duties of the JPC concern the oversight of the journal Geochimica et Cosmochimica Acta, which is jointly sponsored by the Geochemical Society and the Meteoritical Society. This includes approval of associate editors, reviewing the state of the journal, negotiating publishing contracts, mediation between authors and Executive Editor, and the like. MS Council and/or GS Board may request input or a report from the JPC on a matter related to the publication of GCA.

Title / TermNameInstitution, Country
01/2012 - 12/2014
David Hilton Scripps Institution of Oceanography, USA
01/2012 - 12/2014 Katherine Freeman Pennsylvania State University, USA
04/2013 - 12/2015 Tracy Rushmer Macquarie University, Australia
01/2014 - 12/2015* Christian Koeberl Universität Wien, Austria
01/2014 - 12/2016 Jeremy Fein University of Notre Dame, USA
01/2014 - 12/2016 Andrew Davis University of Chicago, USA

*First year of term was held by M. Humayun.

Ex-Officio Members

Four additional ex-officio members of the Joint Publications Committee shall consist of the GS President, MS President, GCA Executive Editor, and Meteoritics Executive Editor.

Title / TermNameInstitution, Country
GS President
(01/2014 - 12/2015)
Barbara Sherwood Lollar University of Toronto, Canada
MS President
(01/2013 - 12/2014)
Monica Grady The Open University, UK
Meteoritics Executive Editor
(01/2003 to date)
Timothy Jull University of Arizona, USA
GCA Executive Editor
(04/2012 to date)
Marc Norman Australian National University, Australia

2014 Nominations Committee

The Nominations Committee oversees the nomination and election of the Board of Directors. Committee positions are for three years. The chair of the committee is typically one of the two senior-most members.

Title / TermNameInstitution, Country, research field
07/2011 - 12/2014
Simon Wilde Curtin University, Australia
07/2011 - 12/2014 Bernhard Peucker-Ehrenbrink Woods Hole Oceanographic Institute, USA
marine chemistry
01/2013 - 12/2015 Adina Paytan University of California - Santa Cruz, USA
01/2013 - 12/2015 Tracy Rushmer Macquarie University, Australia
experimental mineralogy
01/2014 - 12/2016 Erik Hauri Carnegie Institution of Washington, USA
mantle petrology
01/2014 - 12/2016 Takeshi Kakegawa Tohoku University, Japan
petrology and geochemistry

2014 Program Committee

The Program Committee serves as the liaison between GS and other geochemistry-oriented sections of other organizations; receives and evaluates Meeting Assistance Program proposals; evaluates the composition of the V.M. Goldschmidt International Program Committee. Committee members are appointed by the Vice-President and approved by the Board to serve rotating three-year terms. The Chair of the Program Committee serves on the GSA Joint Technical Program Committee (JTPC).

Title / TermNameInstitution, Country, research field
07/2011 - 06/2014
Lesley Warren McMaster University, Canada
07/2011 - 06/2014 Helen Williams Durham University, UK
stable isotope geochemistry
07/2012 - 06/2015
MSA Liaison
Jim Hendry University of Saskatchewan, Canada
low-temperature geochemistry
07/2012 - 06/2015
GSA-MGVP Liaison
Bill Hart Miami University, USA
mantle geochemistry
07/2013 - 06/2016
AGU-VGP Liaison
Matthew Jackson UC - Santa Barbara, USA
mantle geochemistry
07/2013 - 06/2016 Ken Takai JAMSTEC Yokohama, Japan
isotope biogeochemstry
07/2013 - 06/2016
GSA-MGVP Liaison
AGU-BioGeo Liaison
Brandy Toner University of Minnesota, USA

2014 Award Nominations Committee

The Award Nomination Committee was created in 2010 to seek quality nominations for the Geochemical Society's awards independently from the award committees.

Title / TermNameInstitution, Country, research field
07/2012 - 06/2015
Steve Shirey DTM Carnegie, USA
high-temperature geochemistry
07/2013 - 06/2014 TBD* TBD*
07/2011 - 06/2014 Edouard Bard Collège de France - Aix-en-Provence, France
07/2012 - 06/2015 Bridget Bergquist University of Toronto, Canada
aqueous and isotope biogeochemistry
07/2013 - 06/2016 Marc Chaussidon CRPG/CNRS, France
cosmochemistry & meteoritics
07/2013 - 06/2016 Kliti Grice Curtin University, Australia
organic & isotope geochemistry

*Roberta Rudnick served 07/2011-06/2013 (2 award cycles).

2014 V.M. Goldschmidt Award Committee

The V.M. Goldschmidt Medal is awarded annually for major achievements in geochemistry or cosmochemistry. the EAG Urey Chair is an ex-officio voting member.

Title / TermNameInstitution, Country, research field
07/2011 - 06/2014
Kathryn Nagy University of Illinois - Chicago, USA
surface geochemistry
07/2011 - 06/2014** Lisa Pratt Indiana University, USA
07/2012 - 06/2015 Weidong Sun Guangzhou Institution, China
economic geochemistry
07/2012 - 06/2015 Terry Plank Columbia University, USA
magma genesis and plate tectonics
07/2013 - 06/2016 Tim Eglinton ETH Zurich, Switzerland
organic isotope geochemistry
07/2013 - 06/2016 Simon Apte CSIRO, Australia
Urey Chair Liane G. Benning University of Leeds, UK

**Completing term held by Zhenhao Duan

2014 F.W. Clarke Award Committee

The F.W. Clarke Medal is awarded annually to an early-career scientist for a single outstanding contribution to geochemistry or cosmochemistry. The EAG Houtermans Award Committee Chair serves as an ex-officio, voting member.

Title / TermNameInstitution, Country, research field
07/2011 - 06/2014
Graham Pearson University of Alberta, Canada
mantle geochemistry
07/2011 - 06/2014 Klaus Mezger Univeristy of Bern, Switzerland
planetary geochemistry
07/2012 - 06/2015 Ros Rickaby Oxford University, UK
ocean biogeochemistry
07/2012 - 06/2015 Yuchiro Ueno Tokyo Tech, Japan
biogeochemistry of early earth
07/2013 - 06/2016 Magali Ader IPGP Paris, France
07/2013 - 06/2016 Shuhei Ono Massachusetts Institute of Technology, USA
Houtermans Chair Chris Ballentine University of Manchester, UK

2014 C.C. Patterson Award Committee

The C.C. Patterson Award is presented annually for a recent innovative breakthrough in environmental geochemistry.

Title / TermNameInstitution, Country, research field
07/2011 - 06/2014
Friedhelm von Blanckenburg GFZ German Research Centre for Geosciences, Germany
environmental geochemistry
07/2011 - 06/2014 Albert Galy Cambridge University, UK
environmental geochemistry
07/2012 - 06/2015 Fumio Inagaki JAMSTEC, Japan
geomicrobiology and oceanography
07/2012 - 06/2015 Kliti Grice Curtin University, Australia
organic and isotope geochemistry
07/2013 - 06/2016 Avner Vengosh Duke University, USA
isotope geochemistry & hydrogeology
07/2013 - 06/2016 Alexis Templeton Colorado School of Mines, USA

2014 Geochemical Fellows Committee

GS/EAG Geochemistry Fellows are awarded annually for excellence in geochemistry. The GS President and EAG President are ex-officio members.

TermNameInstitution, Country
07/2011 - 06/2014
Janne Blichert-Toft Ecole Normale Supérieure de Lyon, France
07/2011 - 06/2014 Katherine Freeman Penn State University, USA
07/2012 - 06/2015 Trevor Ireland Australian National University, Australia
07/2012 - 06/2015 Kei Hirose Tokyo Institute of Technology, Japan
07/2013 - 06/2016 Richard Pancost University of Bristol, UK
07/2013 - 06/2016 Dan Frost Universitaet Bayreuth, Germany
GS President Richard Carlson Carnegie Institution of Washington, USA
EAG President Chris Ballentine University of Oxford, UK

2014 OGD Executive Committee

The Organic Geochemistry Division Executive Committee determines the recipients of the Alfred Treibs Award and the OGD Best Paper Award. It strives to promote organic geochemistry programming internationally.

TermName / EmailInstitution
01/2014 - 12/2015
Katherine Freeman Pennsylvania State University, USA
01/2014 - 12/2015
Elisabeth Sikes Rutgers University, USA
01/2014 - 12/2015
Stuart Wakeham Skidaway Institute of Oceanography, USA
01/2014 - 12/2015
Hilairy Hartnett Arizona State University, USA
01/2012 - 12/2014
Helen Talbot Newcastle University, UK
01/2013 - 12/2015
Naohiko Ohkouchi JAMSTEC, Japan
01/2014 - 12/2016
Josef Werne University of Pittsburg, USA

2014 Alfred Treibs Award Committee

The Alfred Treibs Award is presented annually by the Organic Geochemistry Division for major achievements in organic geochemistry, over a period of years.

TermName / EmailInstitution
07/2010 - 06/2014*
John Volkman CSIRO, Australia
07/2011 - 06/2014 Cindy Lee Stonybrook University, USA
07/2012 - 06/2015 Ann Pearson Harvard University, USA
07/2012 - 06/2015 Mark Pagani Yale University, USA
07/2013 - 06/2016 Elizabeth Canuel Virginia Inst of Marine Science, USA

*Volkman's term was extended one year.

2014 OGD Best Paper Award Committee

The Best Paper Award is presented annually by the Organic Geochemistry Division to the authors of a paper published in the previous year with significant contributions to organic geochemistry.

TermName / EmailInstitution
01/2012 - 12/2014
Alex Sessions Caltech, USA
01/2013 - 12/2015 Tanja Bosak MIT, USA
01/2014 - 12/2016 Pratigya Polissar Columbia University, USA

2014 Association Liaisons

AssociationTermName / EmailInstitution, Country, research field
AAAS 04/2010 - 12/2012 Neil Sturchio University of Illinois at Chicago, USA
RIMG Short Course Committee 07/2013 - 06/2015 Jim Hendry University of Saskatchewan, Canada
low-temperature geochemistry
GSA - MGPV Division 07/2012 - 06/2015 Bill Hart Miami University, USA
mantle geochemistry

2014 Geochemical News Editors

Weekly editorship of Geochemical News is managed by a volunteer team of four appointed editors serving two-year terms. The President and the Business Manager compose regular society content.

TermNameInstitution, Country, Interest
01/2012 - 12/2014 Lesley Warren McMaster University, Canada
environmental geochemistry
01/2012 - 12/2014 Helen Williams Durham University, UK
analytical geochemistry
01/2014 - 12/2015 James Brenan University of Toronto, Canada
01/2014 - 12/2015 Li-Hung Lin National Taiwan University, Taiwan
President Barbara Sherwood Lollar University of Toronto, Canada
stable isotope geochemistry
COO Seth Davis GS Business Office,
Washington University in St. Louis, USA