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Harry Hess Postdoctoral Research Associate in Geosciences

The Department of Geosciences at Princeton University is accepting applications for a Postdoctoral Research Associate


New study reveals gas that triggers ozone destruction
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Scientists at the Universities of York and Leeds have made a significant discovery about the cause of the destruction of ozone over oceans. They have established that the majority of ozone-depleting iodine oxide observed over the remote ocean comes from a previously unknown marine source. More

 Society News

Sujoy Mukhopadhyay selected as 2013 Gast Lecturer
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The Geochemical Society and the European Association of Geochemistry are pleased to announce the selection of Sujoy Mukhopadhyay, Associate Professor of Geochemistry at Harvard, as the 2013 Paul W. Gast Lecturer. The Lecture series honors the Geochemical Society's first Goldschmidt Medalist, Paul Gast, known for his many contributions to improving our understanding of the geochemical evolution of the solid Earth. Dr. Mukhopadhyay uses noble gas abundance and isotopic variations to investigate the accretionary history of extraterrestrial materials to Earth and the formation history of the terrestrial atmosphere. He most recently has produced remarkable discoveries concerning the very early differentiation history of Earth's interior. The Gast Lecture will be presented in August at the Florence Goldschmidt meeting.

Dove named Virginia Scientist of the Year

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Patricia M. Dove, Professor of science in the Department of Geosciences at Virginia Tech, has been selected as a Virginia Outstanding Scientist for 2013. Dove, who in 2012 was elected as a member of the National Academy of Sciences, is the director of the Biogeochemistry of Earth Processes research group. By using chemical principles and nano-scale analytical methods, Dove has become an international leader in the field of biomineralization. Her work at the interface of earth and life is also providing insights into how changes in fossil skeletons over geologic time record changes in environmental conditions. She received the Geochemical Society's Clarke Medal in 1996, and twice has been the recipient of the U.S. Department of Energy's Best University Research Award. She is a Fellow of the American Geophysical Union, the Geochemical Society, and the European Association of Geochemistry.

EMI2013 and GRC-Interior of the Earth Receive MAP Support

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The Geochemical Society Program Committee has recently approved grants of US$2,000 each to Environmental Isotopes 2013 which will be held in Ascona, Switzerland Aug. 18-23, 2013; and to the Interior of the Earth Gordon Research Conference which will be held in South Hadley, Mass., USA June 2-7, 2013. For more information on MAP including how to apply, visit the MAP webpage.

Geochemical Career Center Postings

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Graduate student opportunities in applied geochemistry research (Multidisciplinary Applied Geochemistry Network, Canada)

Senior Professional Staff - Geoscientist (Nuclear Waste Technical Review Board, Arlington, VA, USA)

Postdoctoral Scholar (Indiana University, Bloomington, IN, USA)

Assistant Professor, Chemical Oceanography (Florida State University, Tallahassee, FL, USA)

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New in GCA (v.101, 15 January 2013)

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Significant interaction effects from sulfate deposition and climate on sulfur concentrations constitute major controls on methylmercury production in peatlands

The mangrove pump: The tidal flushing of animal burrows in a tropical mangrove forest determined from radionuclide budgets

Oxidative dissolution of 4C- and NC-pyrrhotite: Intrinsic reactivity differences, pH dependence, and the effect of anisotropy

Ab initio molecular dynamics simulation and free energy exploration of copper(I) complexation by chloride and bisulfide in hydrothermal fluids

Geochemical evidence of mantle reservoir evolution during progressive rifting along the western Afar margin

Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous–carbonic brines

Experimental calibration of Mg isotope fractionation between aragonite and seawater

Effect of iron redox transformations on arsenic solid-phase associations in an arsenic-rich, ferruginous hydrothermal sediment

Variability of sulphur isotope ratios in pyrite and dissolved sulphate in granitoid fractures down to 1 km depth – Evidence for widespread activity of sulphur reducing bacteria

 Latest News

Search for life on Mars goes underground
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Minerals from deep inside Mars offer the strongest evidence to date that the red planet could have supported life. Up to half of all life on Earth consists of simple microorganisms hidden in rocks beneath the surface and for some time scientists have suggested that the same may be true for Mars. Now this theory has been supported by new research, which suggests that the ingredients for life have been present in the Martian subsurface, a zone of more than three miles below ground, for much of the planet's history. More

New type of volcanic eruption
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Scientists based in the U.K. and New Zealand have described a "new" type of volcanic eruption. Volcanic eruptions are commonly categorized as either explosive or effusive. But now, in research published in Nature Geoscience, researchers at Victoria University, Wellington and the National Oceanography Centre in Southampton have uncovered a previously undocumented type of eruption in underwater volcanoes — by looking at tiny original bubble spaces trapped in volcanic rock. More

Did an 8th century gamma ray burst irradiate Earth?
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A nearby short duration gamma-ray burst may be the cause of an intense blast of high-energy radiation that hit the Earth in the 8th century, according to new research led by astronomers Valeri Hambaryan and Ralph Neuhӓuser. More

US Department of Energy launches rare earth metals research hub
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The U.S. Department of Energy (DOE) has launched a research hub that focuses on solutions to the domestic shortages of rare earth metals and other materials critical for U.S. energy security. Housed at Ames Laboratory in Iowa, Lawrence Livermore National Laboratory (LLNL) has been involved in establishing this Energy Innovation Hub since its conception more than two years ago. In 2010, on behalf of DOE, LLNL hosted the first U.S.-Japan workshop on rare earths elements. Ed Jones and Adam Schwartz have been closely tied to the initiative. More


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