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5 days of geochemistry in Montreal
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The 22nd V.M. Goldschmidt™ Conference held in the Palais des Congres in Montreal saw 2,857 delegates presenting and discussing the latest advances in geochemistry.

The 2012 Goldschmidt was the largest yet in North America. Taking delegates to "The Core of the Matter", early morning e-mails from the conference organizers summarized highlights of the preceding day and events to watch for. The daily highlights provide an excellent snapshot of meeting events for geochemists who could not attend the conference this year.

New this year to the conference were a mobile-device application for program searching and schedule planning, job fairs, and a science and social program developed by and for the student participants.

The Geochemical Society and European Association of Geochemistry are deeply grateful to the leaders of the organizing committee, Ross Stevenson, Alfonso Mucci and Yves Gelinas, to the student activity organizing committee, and to JPdL and GSA for making the conference a success, and to the sponsors - Nu Instruments, Isotopx, McGill University, Osisko, The Geological Survey of Canada, Ministere des Ressources naturelles et de la Faune, Quebec Mines, the Geochemical Society of Japan, Sercon, Agilent Technologies, Beta Analytic, Nanograde and The Geochemist's Workbench for their considerable and much appreciated contributions.

 Society News

David Des Marais to receive 2012 Alfred Treibs Medal
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David Des Marais (NASA, Ames Research Center) has been awarded the 2012 Alfred Treibs Award for excellence in organic geochemistry. The award will be presented to Dr. Des Marais during the Organic Geochemistry Gordon Research Conference at the end of this month.

GCA impact factor rises

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The 2011 2-year impact factor for Geochimica et Cosmochimica rose to 4.259 from its 2010 value of 4.101 in spite of an increase in the number of papers published in 2009-2010 (900) compared to the previous 2-year interval (829). The high and increasing impact factor arises from the high-quality contributions of the geochemical and meteoritic community who have led GCA to be one of the highest cited journals in geochemistry and cosmochemistry. New manuscript processing is proceeding well under the leadership of new Executive Editor Marc Norman, so please consider GCA as the place to report your important work in geo/cosmochemistry.

Image copyright: Thomson Reuters' Journal Citation Reports® 2012

New in GCA (v.89, 15 July 2012)
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Contribution of bacterial cells to lacustrine organic matter based on amino sugars and d-amino acids

Fractional solubility of aerosol iron: Synthesis of a global-scale data set

Chromium isotope fractionation factors for reduction of Cr(VI) by aqueous Fe(II) and organic molecules

Inter-element fractionation of highly siderophile elements in the Tonga Arc due to flux melting of a depleted source

Removal of organic magnesium in coccolithophore calcite

Seasonal resolution of Eastern Mediterranean climate change since 34 ka from a Soreq Cave speleothem

Carbon and hydrogen isotope fractionation during nitrite-dependent anaerobic methane oxidation by Methylomirabilis oxyfera

Insights from fumarole gas geochemistry on the origin of hydrothermal fluids on the Yellowstone Plateau

Thermodynamic properties of illite, smectite and beidellite by calorimetric methods: Enthalpies of formation, heat capacities, entropies and Gibbs free energies of formation

Selenium as paleo-oceanographic proxy: A first assessment

 Latest News

Green rust formation controls nutrient availability in a ferruginous water column
Geology    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Iron-rich (ferruginous) conditions were a prevalent feature of the ocean throughout much of Earth's history. The nature of elemental cycling in such settings is poorly understood, however, thus hampering reconstruction of paleoenvironmental conditions during key periods in Earth evolution. More

Mercury mineral evolution tied to supercontinent assembly over last 3 billion years
ScienceDaily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Mineral evolution posits that Earth's near-surface mineral diversity gradually increased through an array of chemical and biological processes. A dozen different species in interstellar dust particles that formed the solar system have evolved to more than 4500 species today. Previous work from Carnegie's Bob Hazen demonstrated that up to two thirds of the known types of minerals on Earth can be directly or indirectly linked to biological activity. More

Parts of Mars interior as wet as Earth's via CBS News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The interior of Mars holds vast reservoirs of water, with some spots apparently as wet as Earth's innards, scientists say. The finding upends previous studies, which had estimated that the Red Planet's internal water stores were scanty at best — something of a surprise, given that liquid water apparently flowed on the Martian surface long ago. More

Biogeochemistry: Unexpected uptake
Nature Geoscience (paid subscription required)    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Lichens, cyanobacteria, mosses and algae coat many terrestrial surfaces. These biological covers turn out to play an important role in the global cycling of carbon and nitrogen. More

US scientists name newly-found meteoritic mineral
China Daily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
U.S. scientists have discovered a previously unknown substance in the Allende meteorite believed to be among the oldest minerals in the solar system. The titanium oxide is named panguite after Pan Gu, the giant in ancient Chinese mythology who created the world by separating the heaven and the earth from chaos. More

Water in a changing world
University of Deleware    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Six years and about 4,000 water samples later, an outdoor experimental watershed laboratory established by University of Delaware faculty members Shreeram Inamdar and Delphis Levia at Fair Hill, Md., is now producing valuable data and novel insights into how water and chemicals move through the forest canopy, soils and watersheds, and how future climate change may impact or alter such responses. More

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