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The facts behind the frack
ScienceNews    Share    Share on FacebookTwitterShare on LinkedinE-mail article
To call it a fractious debate is an understatement. Hydraulic fracturing, or fracking, wrenches open rock deep beneath the Earth's surface, freeing the natural gas that's trapped inside. Proponents argue that fracking-related gas recovery is a game changer, a bridge to the renewable energy landscape of the future. More




 Society News


Diversity in GS Awards depends on you
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The nomination deadline of Oct. 15 is approaching rapidly for GS Awards. As with many organizations, the list of past recipients of these honors does not well match the diversity of the Geochemical Society membership in a number of areas, particularly gender (figure). The Society is well aware of this problem with an excellent summary presented by past President Sam Mukasa. The Society has taken many steps to increase diversity in its awards, but the greatest obstacle remains the nomination step. Please help us honor and celebrate the diversity of geochemical excellence by nominating worthy candidates who will provide better balance to the list of GS Award winners.

Featured Geochemical Career Center Postings
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New! Carnegie Postdoctoral Fellowship Positions in Geochemistry, Cosmochemistry, and Astrobiology (Carnegie Institution of Washington, Washington, DC, USA)

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)

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

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

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

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

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

Final Days! Harry S. Truman Fellowship In National Security Science and Engineering (Sandia National Lab, Albuquerque, NM, 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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Important role of colloids in the cycling of 210Po and 210Pb in the ocean: Results from the East/Japan Sea

Degradation of terrestrial organic carbon, primary production and out-gassing of CO2 in the Laptev and East Siberian Seas as inferred from δ13C values of DIC

On the triple oxygen isotope composition of carbon dioxide from some combustion processes

Inherited Pb isotopic records in olivine antecryst-hosted melt inclusions from Hawaiian lavas

An experimental study of trace element partitioning between zircon and melt as a function of oxygen fugacity

Nano-scale investigation of the association of microbial nitrogen residues with iron (hydr)oxides in a forest soil O-horizon

Surface speciation of yttrium and neodymium sorbed on rutile: Interpretations using the charge distribution model

Perylene in Lake Biwa sediments originating from Cenococcum geophilum in its catchment area

Post-impact thermal evolution of porous planetesimals




 Latest News


WRI-14
IAGC    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Do not miss the Oct. 15, 2012, deadline for abstract submissions to the International Association of Geochemistry's (IAGC) Water-Rock Interaction triennial symposium held from June 9-14, 2013, at the Palais de Papes in Avignon, France.

The conference's impressive venue, in addition to the traditional convivial and scientific ambiance of WRI, will foster scientific exchanges and further knowledge in all fields related to water-rock interactions, and in particular in such new fields as environmental and risk assessment associated with contaminated water resources, shale gas exploitation, and geothermal energy. An impressive organizing and scientific committee has been assembled with Pierpaolo Zuddas serving as Secretary General of the conference.


Magmatic precipitation as a possible origin of Noachian clays on Mars
Nature Geoscience (subscription required)    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Hydrous clay minerals detected on the surface of Mars have been interpreted as indicators of the hydrologic and climatic evolution of the planet. The iron- and magnesium-rich clays described in thick, extensive outcrops of Noachian crust have been proposed to originate from aqueous weathering. More

How much carbon is released into the atmosphere by thawing permafrost?
Ars Technica    Share    Share on FacebookTwitterShare on LinkedinE-mail article
One of the most worrisome unknowns about climate change is the behavior of positive feedbacks that amplify warming. The ultimate fear is that we could cross tipping points, where the warming gains a momentum of its own that would continue for a time even if human emissions were drastically reduced. More

Study plugs holes in island creation theory
ABC Science    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A study of hotspot trails in the South Atlantic Ocean supports the theory that volcanic island chains are formed by plumes of magma breaking through the Earth's crust. Dr Oliver Nebel of the Australian National University and colleagues report their findings today in Nature Geoscience. More

Did the reign of dinosaurs begin, as well as end, with a meteorite strike?
Scientific American    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Western New Jersey holds one of the most visible examples of the Triassic–Jurassic boundary, where evidence could settle the debate about what caused a mega-extinction event that paved the way for the age of dinosaurs. More


 

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