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




 

Finding Mercury's water with infrared lasers and neutron counters
IEEE Spectrum    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The satellite giveth, and the satellite taketh away. While some space-borne probes seem to confirm that earthly ice caps are shrinking, others indicate that billion-year-old ice deposits lurk in Mercury's deep arctic shadows — which remain at a cool -173 °C despite the planet's proximity to the sun, which can drive summer noon temperatures up to 627 °C. More





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Featured Geochemical Career Center Postings
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Senior Professional Staff - Geoscientist (Nuclear Waste Technical Review Board, Arlington, VA, USA)

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

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)

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

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

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New in GCA (v. 99, 15 December 2012)
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Systematic review of forsterite dissolution rate data

Microbial Mn(IV) reduction requires an initial one-electron reductive solubilization step

Low-Mg rock debris in howardites: Evidence for KREEPy lithologies on Vesta?

Quantitative analysis of sulfur functional groups in natural organic matter by XANES spectroscopy

Carbonate clumped isotope variability in shallow water corals: Temperature dependence and growth-related vital effects

Elemental weathering fluxes and saprolite production rate in a Central African lateritic terrain (Nsimi, South Cameroon)

The stable isotope composition of halite and sulfate of hyperarid soils and its relation to aqueous transport

Hf–W chronometry of core formation in planetesimals inferred from weakly irradiated iron meteorites

The redox state of iron in the matrix of CI, CM and metamorphosed CM chondrites by XANES spectroscopy

Ice core records of biomass burning tracers (levoglucosan and dehydroabietic, vanillic and p-hydroxybenzoic acids) and total organic carbon for past 300 years in the Kamchatka Peninsula, Northeast Asia




 Latest News


Mercury releases contaminate ocean fish: Dartmouth-led effort publishes major findings
Science Codex    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In new research published in a special issue of the journal Environmental Health Perspectives and in "Sources to Seafood: Mercury Pollution in the Marine Environment"— a companion report by the Dartmouth-led Coastal and Marine Mercury Ecosystem Research Collaborative (C-MERC), scientists report that mercury released into the air and then deposited into oceans contaminates seafood commonly eaten by people in the U.S. and globally. More

Violent past revealed by map of moon's interior
ScienceNews    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The moon is cooling and shrinking, but early in its history it actually got bigger, scientists have found. As the moon expanded, molten rock rose from its deep interior to cool and solidify into long gashes buried beneath the surface. For billions of years these fiery scars remained hidden, finally revealing themselves to a pair of spacecraft flying overhead. More

Ancient human feces: Ah, the tales it can tell
Discover Magazine    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In the wee hours of the morning in a lab in Amherst, Mass., geoscience graduate student Rob D'Anjou sat looking over test results, a pot of coffee nearby. He'd been pulling long days to analyze two narrow columns of silt, mud, and other sediment cored from the bottom of Lake Liland in Arctic Norway, and, frustratingly, was seeing no sign of the molecules with which he’d been hoping to reconstruct the temperature and precipitation records during the lake's last 7,000-odd years. More

Captured: The moment photosynthesis changed the world
New Scientist    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Billions of years ago, a tiny cyanobacterium cracked open a water molecule - and let loose a poison that wrought death and destruction on an epic scale. The microbe had just perfected photosynthesis, a process that freed the oxygen trapped inside water and killed early Earth's anaerobic inhabitants. More


 

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