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Missing methane gas mystifies Mars scientists
The Mars rover Curiosity has not found any methane in the planet's atmosphere1, raising doubts about plumes of the gas that once tantalized planetary scientists. In 2004, three research teams said that they had spotted whiffs of methane on the red planet. The gas could have come from Martian microbes or geological activity, or been delivered by crashing comets — all thrilling possibilities.
2014 Geochemical Society Director Elections
This October, the Geochemical Society membership will determine four new members of the Board of Directors. On the 2014 Slate of Officers are Laurie Reisberg and Derek Vance for Vice-President; Anton Eisenhauer and Takashi Murakami for Secretary; Chris Hawkesworth and Gert-Jan Reichart for Director; and Tomoki Nakamura and Yong-Fei Zheng for Director. These four positions will join the eleven other directors of the 2014 Board of Directors.
The online election will open Oct. 11 and close on Oct. 25. Please login to your member account by Oct. 9 to verify your member status and, if necessary, update your email address.
EarthChem makes it easy to generate a robust Data Management Plan for your project with the IEDA DMP Tool. The tool guides you to complete relevant sections, provides lists of repositories and resources, and generates a well-formatted PDF that can be included in proposals. Visit the IEDA DMP Tool!
Geochemical Career Center
New! Assistant Professor, Isotope Geochemistry (Tulane University, New Orleans, LA, USA)
New! Two Assistant Professor Positions Geochemistry and Hydrogeology/Geofluids (Oklahoma State University, Stillwater, OK, USA)
Senior Research Officer (Ion Probe/SIMS) (University of Western Australia, Perth, Australia)
Assistant Professor of Organic Geochemistry (The University of Tulsa, Tulsa, OK, USA)
Ph.D. Studentship in Mineral Surface (Geo)Chemistry (Umeaa University, Umeaa, Sweden)
Application Specialist - Gas Isotope MS (m/f) (Thermo Scientific, Germany)
Postdoctoral and/or PhD position(s) for Re-Os geochemistry of shale's and hydrocarbons (Colorado State University, Fort Collins, CO, USA)
Tenure-Track Position in Organic Geochemistry (University of Colorado, Boulder, CO, USA)
Postdoctoral Researcher, Mantle Processes Group (Stanford University, Stanford, CA, USA)
Harry S. Truman Fellowship in National Security Science and Engineering (Sandia National Laboratories, Albuquerque, NM, USA)
Final Days! Program Director of the Geobiology and Low-Temperature Geochemistry Program (National Science Foundation, Arlington, VA, USA)
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.
New in GCA (v.119, 15 October 2013)
LA-ICP-MS mapping of olivine from the Brahin and Brenham meteorites: Complex elemental distributions in the pallasite olivine precursor
Fractionation of yttrium and holmium during basaltic soil weathering
A mixture of nitrite-oxidizing and denitrifying microorganisms affects the δ18O of dissolved nitrate during anaerobic microbial denitrification depending on the δ18O of ambient water
Properties of impurity-bearing ferrihydrite II: Insights into the surface structure and composition of pure, Al- and Si-bearing ferrihydrite from Zn(II) sorption experiments and Zn K-edge X-ray absorption spectroscopy
Impact of CO2 concentration on autotrophic metabolisms and carbon fate in saline aquifers – A case study
Fluorine partitioning between hydrous minerals and aqueous fluid at 1 GPa and 770–947 °C: A new constraint on slab flux
Calcium isotope fractionation in groundwater: Molecular scale processes influencing field scale behavior
Sulfur and sulfides in chondrules
New in G-Cubed
Evolution of geochemical variations along the Central American volcanic front
First observations of the fumarolic gas output from a restless caldera: Implications for the current period of unrest (2005–2013) at Campi Flegrei
Climatologic and hydrologic influences on the oxygen isotope ratio of tree cellulose in coastal southern California during the late 20th century
The 11th International GeoRaman Conference will focus on two major aspects of laser Raman spectroscopy: (1) The most advanced technologies and instrumentation, from laboratory settings to a wide variety of field applications, e.g., industrial and security monitoring, geo-fields, deep ocean, and on other planets; (2) The newest applications in the study of inorganic, organic, and bio-genetic materials in the Earth Sciences, Planetary Sciences, Environmental Science, Forensic Science, Archaeology and Archaeometry, Gemology, and Astrobiology. Many additional geological-geochemical-geophysical applications will be included. If you are considering attending, please respond to the Notice of Interest by Oct. 31. For more information, contact Professor Alian Wang or visit the GeoRaman2014 website.
Remote Antarctic trek reveals a glacier melting from below
Scientists watching Antarctica's Pine Island Glacier from space have noticed with some alarm that it has been surging toward the sea. If it were to melt entirely, global sea levels would rise by several feet. "This was a granddaddy of a problem," says Tim Stanton, oceanography research professor at the Naval Postgraduate School in Monterey, Calif.
East Coast mantle hotspot could explain massive Missouri quakes
Have you ever gone knocking on walls to find a stud so you can hang your new painting of dogs playing poker? Seismologists do something that isn't completely dissimilar, except that they let earthquakes do the knocking for them. By recording an earthquake's seismic waves at many locations, they can work out details of what's underground — the geologic studs.
Greenland snowpack measurements reveal a drop in atmospheric carbon monoxide since 1950s
A first-ever study of air trapped in the deep snowpack of Greenland shows that atmospheric levels of carbon monoxide (CO) in the 1950s were actually slightly higher than what we have today. This is a surprise because current computer models predict much higher CO concentrations over Greenland today than in 1950. Now it appears the opposite is in fact true.
Meteorite minerals offer clues to Earth extinctions, climate change
Space.com via NBC News
A huge asteroid that wiped out the dinosaurs may not have been the only cosmic event to cause mass extinctions or change Earth's climate. Tiny minerals left over from many smaller meteorites could provide the geological evidence needed to show how rocks falling from the sky changed the course of life's evolution on our planet more than just once.
A new perfection found in diamonds created by an asteroid in Siberian crater 35 million years ago
The Siberian Times
The Popigai reserves are enough to keep the planet in diamonds for 3,000 years. New research indicates special qualities which makes these diamonds unique in the world, according to a new announcement by scientists in Novosibirsk. Their "high abrasiveness" is 50 percent to 60 percent superior to natural or synthetic diamonds. The impact diamonds from the crater also have exclusive polishing characteristics.
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Lesley Warren, and Helen Williams
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