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NASA's Curiosity rover 'sniffs' Martian air
BBC    Share    Share on FacebookTwitterShare on LinkedinE-mail article
NASA's Curiosity rover has measured the Red Planet's atmospheric composition. The robot sucked the air into its big Sample Analysis at Mars (Sam) instrument to reveal the concentration of different gases. More




 Society News



It's nomination time!
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Nominations for Geochemical Society Awards are due Oct. 15, a mere five weeks away. Now is the perfect time to initiate a nomination of a worthy colleague for the following awards:
Goldschmidt Award
F.W. Clarke Award
C.C. Patterson Award
Alfred Treibs Award
Geochemical Fellows

Note that anyone may be nominated, within the guidelines of an individual award, except for members of the board of directors, or members of the given awards committees.

Please follow this link for more information.
—Roberta Rudnick, on behalf of the GS nominations committee


GS schedule at GSA-Charlotte
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The 2012 F. Earl Ingerson Lecture presented by Isabel Montanez will be given on Tuesday, Nov. 6, 2012, at 9:50 a.m. in the Charlotte Convention Center (CCC) Room 202AB. The Joint GS/MSA/GSA-MGPV Reception will also be on Tuesday, Nov. 6, 2012 from 5:45 p.m. – 7:30 p.m. In CCC Ballroom C. This is a ticketed event (Professionals $10, Students $5). GS will also be at Booth 806 for the duration of the exhibition. The early registration deadline to attend is Oct. 1.


Featured Geochemical Career Center postings

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USGS Mendenhall Research Fellowship in Noble Gas Isotopes or Stable Isotopes (US Geological Survey, Denver, CO, USA)

Associate Isotope Geochemist or Isotope Geochemist (Illinois State Geological Survey, Urbana-Champaign, IL, USA)

Faculty Positions in Continental Margins and Coastal Environments (Scripps Institution of Oceanography, San Diego, CA, USA)

Analytical Fluid Geochemist (GNS Science, Lower Hutt, New Zealand)

Post Doc Appointee – Geochemistry (Sandia National Lab, Albuquerque, NM, USA)

Environmental Earth Sciences Faculty Position (University of Notre Dame, South Bend, IN, USA)

Assistant Professor in Aqueous Geochemistry/ Biogeochemistry (University of South Carolina, Columbia, SC, USA)

Assistant Professor in Sedimentary Systems Geology (University of South Carolina, Columbia, SC, USA)

Harry S. Truman Fellowship In National Security Science and Engineering (Sandia National Lab, Albuquerque, NM, USA)

Final Days! Assistant/Associate Professor in Global Change Oceanography (University of South Carolina, Columbia, SC, USA)

Job Seekers: It only takes a few minutes to create an account to apply for jobs. Sign up now for access to all the great features on Geochemical Career Center.

Employers: For a nominal fee (a single 60-day post is 250 USD), the link to your post will be distributed in future issues of Geochemical News – reaching over 5,000 subscribers and also on our Facebook page with nearly 1,000 likes.


New in GCA (v.95, 15 October 2012)
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Thermal history of Apollo 12 granite and KREEP-rich rock: Clues from Pb/Pb ages of zircon in lunar breccia 12013

The effect of carbonic anhydrase on the kinetics and equilibrium of the oxygen isotope exchange in the CO2–H2O system: Implications for δ18O vital effects in biogenic carbonates

Sr/Ca and Ba/Ca variations in environmental and biological sources: A survey of marine and terrestrial systems

Stable hydrogen and carbon isotopic compositions of long-chain (C21–C33) n-alkanes and n-alkenes in insects

Equilibrium vs. kinetic fractionation of oxygen isotopes in two low-temperature travertine-depositing systems with differing hydrodynamic conditions at Baishuitai, Yunnan, SW China

Calculation of the properties of the S3− radical anion and its complexes with Cu+ in aqueous solution

The enigma of reactive nitrogen in volcanic emissions

No oxygen isotope exchange between water and APS–sulfate at surface temperature: Evidence from quantum chemical modeling and triple-oxygen isotope experiments

Ni speciation in a New Caledonian lateritic regolith: A quantitative X-ray absorption spectroscopy investigation




 Latest News


DIPPI-C Seeking Manuscripts for G-Cubed Special Issue
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The DIPPI-C working group currently is accepting manuscripts to its special theme of the Geochemical Society/AGU journal G-Cubed.

We are looking for manuscripts using carbon isotopes and/or biomarker distributions in modern and palaeo environments from organic and inorganic materials, covering all spatial and temporal scales, to understand environmental process(es). Special theme deadline is Dec. 31, 2013 (yes, next year!!!)

Follow DIPPI-C working group on Twitter (@DIPPI_C) and on Facebook.


Stable isotopes a universal tool
Environmental Research Web    Share    Share on FacebookTwitterShare on LinkedinE-mail article
More than 250 international scientists will be meeting in the first week of September in Leipzig, Germany, to share their experiences on the latest methods and applications using stable isotopes. Stable isotopes are a tool that can be used in a wide range of areas in natural sciences and medicine as, with their help, it is possible to establish the origin of substances, and dynamic processes can be made visible. More

'Weird chemistry' by microbe is prime source of ocean methane
ScienceDaily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Up to 4 percent of the methane on Earth comes from the ocean's oxygen-rich waters, but scientists have been unable to identify the source of this potent greenhouse gas. Now researchers report that they have found the culprit: a bit of "weird chemistry" practiced by the most abundant microbes on the planet. More

Yellowstone into the future
ScienceDaily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In the September issue of GSA TODAY Guillaume Girard and John Stix of McGill University in Montreal join the debate regarding future scenarios of intracaldera volcanism at Yellowstone National Park. More

Dependence of riverine nitrous oxide emissions on dissolved oxygen levels
Nature Geoscience (subscription required)    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Nitrous oxide is a potent greenhouse gas, and it destroys stratospheric ozone. 17 percent of agricultural nitrous oxide emissions come from the production of nitrous oxide in streams, rivers and estuaries, in turn a result of inorganic nitrogen input through leaching, runoff and sewage. More

Biogenic potassium salt particles as seeds for secondary organic aerosol in the Amazon
Science (subscription required)    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt–rich particles emitted by biota in the rainforest. More

Impact from humans felt on Black Sea long before Industrial Era
RedOrbit    Share    Share on FacebookTwitterShare on LinkedinE-mail article
When WHOI geologist Liviu Giosan first reconstructed the history of how the Danube River built its delta, he was presented with a puzzle. In the delta's early stages of development, the river deposited its sediment within a protected bay. As the delta expanded onto the Black Sea shelf in the late Holocene and was exposed to greater waves and currents, rather than seeing the decline in sediment storage that he expected, Giosan found the opposite. The delta continued to grow. In fact, it has tripled its storage rate. More

Rust never sleeps
Berkeley Lab    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Rust — iron oxide — is a poor conductor of electricity, which is why an electronic device with a rusted battery usually won't work. Despite this poor conductivity, an electron transferred to a particle of rust will use thermal energy to continually move or "hop" from one atom of iron to the next. More


 

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