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Most of Earth's copper is buried deep
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Earth is clingy when it comes to copper. A new Rice University study in the journal Science finds that nature conspires at scales both large and small — from the realms of tectonic plates down to molecular bonds — to keep most of Earth's copper buried dozens of miles below ground. More



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Elements Magazine April 2012
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The April issue of Elements "Minerals, Microbes, and Remediation" is now available online. Check it at www.elements.geoscienceworld.org or http://www.elementsmagazine.org/archives/index.html. Don't miss Geochemical Society News or Tim Drever's editorial Decisions, Decisions More






FINAL call for 2012 Alfred Treibs Nominations

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Nominations for the Organic Geochemistry Division's 2012 Alfred Treibs Award are being accepted through April 17, 2012. The Treibs Medal honors major achievements, over a period of years, in organic geochemistry. Please take the time to honor the accomplishments of valued friends and colleagues by submitting a nomination. More

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New in GCA (Volume 84, 01 May 2012)
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A refined sampling strategy for intra-tooth stable isotope analysis of mammalian enamel

Stable iron isotope fractionation between aqueous Fe(II) and model Archean ocean Fe–Si coprecipitates and implications for iron isotope variations in the ancient rock record

Relationships between Fe redistribution and Po2 during mineral dissolution under low O2 conditions

Nutrient cycling in bedform induced hyporheic zones

The silicification of trees in volcanic ash - An experimental study

The titanium-in-quartz (TitaniQ) thermobarometer: A critical examination and re-calibration

Interdiffusion of divalent cations in carbonates: Experimental measurements and implications for timescales of equilibration and retention of compositional signatures

Diagenetic and detrital origin of moretane anomalies through the Permian–Triassic boundary

The influence of organic matter decay on the distribution of major and trace elements in ombrotrophic mires – a case study from the Harz Mountains

Structure and dynamics of forsterite–scCO2/H2O interfaces as a function of water content

The sulfur-isotopic compositions of benzothiophenes and dibenzothiophenes as a proxy for thermochemical sulfate reduction

Natural zinc enrichment in peatlands: Biogeochemistry of ZnS formation

A theoretical study of the qualitative reaction mechanism for the homogeneous disproportionation of pentavalent uranyl ions






 Latest News


Using new technology to measure nitrogen in coastal surface waters
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While many of us, especially those of us trying to feed young children, think of nutrients as desirable, it is possible to have too much of a good thing. Excessive nutrients in an ecosystem disturb the chemical and environmental balance that allows native plants and animals to thrive in harmony. More

Age of oldest rocks off by millions of years
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Two of the solar system's best natural timekeepers have been caught misbehaving, suggesting that the accepted ages for the oldest known rocks are wrong. Both radioactive clocks are used to chart the history of events on our planet. In one method for aging rock, you use the relative amounts of various isotopes — versions of the same element with different atomic masses — to give a snapshot of the make-up of the rock when it formed. More

Study of Patagonian Glacier's rise and fall adds to understanding of global climate change
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A team of researchers led by Sebastien Bertrand, of the WHOI Marine Chemistry and Geochemistry department, took sediment samples during five weeks of field work in the fjords of Chilean Patagonia. More

A mantle-driven surge in magma supply to Kilauea Volcano during 2003 — 2007
Nature Geoscience    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The eruptive activity of a volcano is fundamentally controlled by the rate of magma supply. At Kilauea Volcano, Hawai'i, the rate of magma rising from a source within Earth's mantle, through the Hawaiian hotspot, was thought to have been relatively steady in recent decades. More


 
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