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Check our latest publications from our short-course volumes, special publications or Canadian Mineralogist thematic issues




 

Meteorite samples provide evidence of water and rock types on Mars
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Researchers at the Tokyo Institute of Technology, NASA's Johnson Space Center, Lunar Planetary Institute, and Carnegie Institute of Washington report on geochemical studies that help towards settling the controversy that surrounds the origin, abundance, and history of water on Mars. More





 Society News


2013 GSA Annual Meeting — call for proposals
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In 2013, the Geological Society of America (GSA) will celebrate its 125th anniversary. The Geochemical Society, as one of the associated societies of GSA, has been asked sponsor topical sessions for the 2013 Annual Meeting in Denver (Oct. 27-30). To help grow geochemical interest at the GSA annual meeting, please contact our liaison, Bill Hart if you would like GS to endorse your proposal. The deadline to add sponsorships is Tuesday, Jan. 8, 2013.

Featured Geochemical Career Center Postings
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New! Assistant Professor, Chemical Oceanography (Florida State University, Tallahassee, FL, USA)

New! Postdoctoral Scholar, Dept of Geological Sciences (Indiana University, Bloomington, IN, USA)

Postdoctoral and Graduate Fellowships, Dept. of Mineral Sciences (Smithsonian Institution, Washington, DC, USA)

Tenure-track Faculty Position (Case Western Reserve University, Cleveland, OH, USA)

Faculty Position in Planetary Science (Johns Hopkins University, Baltimore, MD, USA)

Dow Sustainability Postdoctoral Fellowship (University of Michigan, Ann Arbor, MI, USA)

Tenure-Track Associate Professor / Assistant Professor in the Department of Earth Sciences (The University of Hong Kong, Hong Kong, China)

Head and Tenure-Track Professor in the Department of Earth Sciences (The University of Hong Kong, Hong Kong, China)

Assistant Professor in Earth and Planetary Sciences (Washington University, St. Louis, MO, USA)

Endowed Professorship in Climate Change (Washington University, St. Louis, MO, USA)

Final Days! Tenure-Track Assistant Professor and Tier II Canada Research Chair in Applied Geochemistry (University of British Columbia, Vancouver, BC, Canada)

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New in GCA (v.98, 1 December 2012)
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Geochemical behaviour of Radium isotopes and Radon in a coastal thermal system (Balaruc-les-Bains, South of France)

How predictable are dissolution rates of crystalline material?

Surface complexation modeling of groundwater arsenic mobility: Results of a forced gradient experiment in a Red River flood plain aquifer, Vietnam

Corrigendum to "He diffusion and closure temperatures in apatite and zircon: A density functional theory investigation" [Geochim. Cosmochim. Acta 86 (2012) 228–238]

Effective radium concentration across the Main Central Thrust in the Nepal Himalayas

Intact polar and core glycerol dibiphytanyl glycerol tetraether lipids in the Arabian Sea oxygen minimum zone: I. Selective preservation and degradation in the water column and consequences for the TEX86

Intact polar and core glycerol dibiphytanyl glycerol tetraether lipids in the Arabian Sea oxygen minimum zone. Part II: Selective preservation and degradation in sediments and consequences for the TEX86

Formation, growth and transformation of leached layers during silicate minerals dissolution: The example of wollastonite

Extended X-ray Absorption Fine Structure (EXAFS) in Stardust tracks: Constraining the origin of ferric iron-bearing minerals




 Latest News


In Memoriam: Drs. Murthy and Khodakovsky
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Dr. Varanasi Rama Murthy passed away Oct. 12, 2012. Known simply as Rama to his many friends and colleagues, his career ranged widely with numerous contributions to mantle geochemistry and cosmochemistry as well as to science education. Rama is perhaps best known for his suggestion (Science 253, 1991) that the excess siderophile abundances in Earth's mantle might reflect a high-temperature, magma-ocean, formation for the core. His generous nature, wide ranging interests, and ability to tell a good story made him a favorite colleague of many and a success in his many academic pursuits. Read more.



Igor Khodakovsky, principal senior scientist of the Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, passed away on July 29, 2012. Igor made major contributions in the application of thermodynamics to geochemical processes with investigations ranging from establishing the self-consistency of ion thermodynamic properties through critical evaluations of large experimental data sets, to being a pioneer of chemical thermodynamic applications in the computer modeling of the chemical composition of Venus' atmosphere as well that of Venus' and Martian surface rocks. Read more.


Geobiology GRC
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The Geobiology GRC will be held Jan. 27 to Feb. 1, 2013, in Ventura, Calif. The detailed program is now available and includes a variety of hot topics, including the Deep Carbon Observatory, the Mars Opportunity mission, and many speakers new to Geobiology. The application deadline is Dec. 30, 2012. A related Gordon Research Seminar will be held before the conference in the same location.



Depths hold clues to dearth of xenon in air
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As detective stories go, the Mystery of the Missing Xenon may not have the catchiest title. But scientists in Germany say they might have cracked this long-standing enigma. The reason there's less xenon in Earth's atmosphere than expected, the researchers say, is because there was never much xenon dissolved in the planet's depths to begin with. Had there been, it would have made its way over billions of years toward the surface, there to spew into the atmosphere. More

New study advances understanding of volcanic eruptions
McGill Reporter    Share    Share on FacebookTwitterShare on LinkedinE-mail article
While scientists don't yet fully understand the mechanisms that control whether a volcanic eruption is large or small, they do know that eruptions are driven by the rapid expansion of bubbles formed from water and other volatile substances trapped in molten rock as it rises beneath a volcano. More

Direct measurement of hydroxyl in the lunar regolith and the origin of lunar surface water
Nature Geoscience (subscription required)    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Remote sensing discoveries of hydroxyl and water on the lunar surface have reshaped our view of the distribution of water and related compounds on airless bodies such as the Moon. The origin of this surface water is unclear, but it has been suggested that hydroxyl in the lunar regolith can result from the implantation of hydrogen ions by the solar wind. More

First Nation using GIS data to map cultural values
Northern Ontario Business    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Matawa First Nations, a tribal council representing nine First Nations in northwestern Ontario, Canada, is taking a proactive approach with land use management to safeguard its cultural and historical values. More


 

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