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Caltech-led team develops a geothermometer for methane formation
Caltech
Methane is a simple molecule consisting of just one carbon atom bound to four hydrogen atoms. But that simplicity belies the complex role the molecule plays on Earth — it is an important greenhouse gas, is chemically active in the atmosphere, is used in many ecosystems as a kind of metabolic currency and is the main component of natural gas, which is an energy source.
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SOCIETY NEWS


Thank you 2014 committee members!
GS
What we do at GS day after day to deliver on our mission to impact the direction of geochemistry at a global level is only possible through the Herculean efforts of our volunteers. Thank you! The following volunteers complete terms at the end of June 2014; an asterisk denotes committee chair. Visit Committees and Personnel for full committee rosters.

Nominations: Simon Wilde* (Curtin Univ), Bernhard Peucker-Ehrenbrink (WHOI)
Program: Lesley Warren* (McMaster Univ), Helen Williams (Durham Univ)
Award Nominations: Edouard Bard (College de France)
V.M. Goldschmidt Award: Kathryn Nagy* (Univ of Illinois), Lisa Pratt (Indiana Univ)
F.W. Clarke Award: Graham Pearson* (Univ of Alberta), Klaus Mezger (Univ of Bern)
C.C. Patterson Award: Friedhelm von Blanckenburg* (GFZ), Albert Galy (Cambridge Univ)
Geochemical Fellows: Janne Blichert-Toft* (Ecole Normale Supérieure de Lyon) , Katherine Freeman (Penn State Univ)
Alfred Treibs Award: John Volkman (CSIRO), Cindy Lee (Stonybrook Univ)

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GS and geochemistry at GSA-Vancouver
GS
Thanks to strong volunteer support, there are 37 sessions sponsored or co-sponsored by Geochemical Society at the 2014 GSA Annual Meeting in Vancouver, BC, Canada this October. Abstract submission is open through July 29. GS will again be organizing the F. Earl Ingerson Lecture, sponsoring a reception with MSA and the GSA-MGPV division, and welcome attendees to our exhibit (Booth 1226).
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PRODUCT SHOWCASE
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Geochemical Career Center
GS


Faculty Position in Climate Change and Water Cycle (University of Michigan, Ann Arbor, USA)




Assistant Professor of Geochemistry (University of Tulsa, Tulsa, OK, USA)




Chromium Isotope Oceanography—one PhD or two MSc positions (University of Saskatchewan, Saskatoon, SK, Canada)


Job Seekers: View current openings | Post your resume | Career resources

Employers: All jobs posted in the Geochemical Career Center are cross-promoted through Facebook, Twitter and right here in Geochemical News.

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New in GCA (v.136, 15 June 2014)
GS
Investigation of pyridine carboxylic acids in CM2 carbonaceous chondrites: Potential precursor molecules for ancient coenzymes

Thermal and impact history of the H chondrite parent asteroid during metamorphism: Constraints from metallic Fe–Ni

Alteration of organic matter during infaunal polychaete gut passage and links to sediment organic geochemistry. Part II: Fatty acids and aldoses

Fractionation of Ne and Ar isotopes by molecular diffusion in water

Air temperature-driven CO2 consumption by rock weathering at short timescales: Evidence from a Holocene lake sediment record

Origin of insoluble organic matter in type 1 and 2 chondrites: New clues, new questions

Uranium isotopic fractionation factors during U(VI) reduction by bacterial isolates

Rare bacteriohopanepolyols as markers for an autotrophic, intra-aerobic methanotroph

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GEOCHEMISTRY IN THE NEWS


Fracking flowback could pollute groundwater with heavy metals
Cornell University via ScienceDaily
The chemical makeup of wastewater generated by "hydrofracking" could cause the release of tiny particles in soils that often strongly bind heavy metals and pollutants, exacerbating the environmental risks during accidental spills, Cornell University researchers have found.
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Study links Greenland ice sheet collapse, sea level rise 400,000 years ago
Oregon State University via Phys.org
A new study suggests that a warming period more than 400,000 years ago pushed the Greenland ice sheet past its stability threshold, resulting in a nearly complete deglaciation of southern Greenland and raising global sea levels some 4-6 meters.
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Ancient ocean currents may have changed pace and intensity of ice ages
National Science Foundation
Climate scientists have long tried to explain why ice-age cycles became longer and more intense some 900,000 years ago, switching from 41,000-year cycles to 100,000-year cycles.
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New tunable laser spectrometer measures rare methane isotopologues
Deep Carbon Observatory
Methane is not only an important energy resource and a major component of biogeochemical cycles, but also is a significant and long-lived greenhouse gas. The majority of methane on Earth is of biogenic origin (from both microbial methanogenesis and thermogenic gas production, the latter by thermal cracking of higher molecular weight hydrocarbons).
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TRENDING ARTICLES
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