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Solved? Mystery of Atacama Desert's 'white gold'
The driest, highest desert on Earth, Chile's Atacama Desert, also holds the world's richest nitrate and iodine deposits. As such, a "white gold" rush there fueled Europe's bombs in World War I and helped raise IQs once iodine deficiency was discovered. But even after the nitrate mines closed in the 1930s, the source of the massive mineral drifts remained a mystery.
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Goldschmidt2014: Field trips and workshops
We've mentioned previously the great field trips that are being planned for Goldschmidt2014. In addition, several organizers are assembling a number of attractive workshops. Most workshops may be booked through the Goldschmidt2014 website until May 8. For more details, please visit
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Video of Clair C. Patterson?
The Geochemical Society has recently been contacted by a documentary production company working on a project involving Clair C. Patterson and they are seeking film/video footage of him. If you have any footage that may be used for this project, please send an email to the GS Business Office by Friday, Feb. 14. Please include a description of what it is and, if it is copyrighted, the name and contact information of the owner. If interested in your material, the production company will be in touch to discuss the project.
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Geochemical Career Center

New! 2 Postdoctoral positions and 3 doctoral positions (University of Münster, Münster, Germany)

Tenure-track faculty position in radiogenic isotope geochemistry (Pennsylvania State University, University Park, PA, USA)

Post doc position for laser ablation geochronologist or thermochronologist (University of Calgary, Calgary, AB, Canada)

Director, Romberg Tiburon Center for Environmental Studies (San Francisco State University, San Francisco, CA, USA)

International research chair in stable isotope biogeochemistry / paleoceanography (LabexMER, Brest/Dinard, France)

Job Seekers: View current openings | Post your resume | Career resources

Employers: All jobs posted in the Geochemical Career Center are cross-promoted through Facebook, Twitter and right here in Geochemical News.

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New in GCA (v.125, 15 January 2014)
In situ produced branched glycerol dialkyl glycerol tetraethers in suspended particulate matter from the Yenisei River, Eastern Siberia

Gas hydrate dissolution rates quantified with laboratory and seafloor experiments

Calculation of vapor–liquid equilibrium and PVTx properties of geological fluid system with SAFT-LJ EOS including multi-polar contribution. Part III. Extension to water–light hydrocarbons systems

The effect of phosphomonoesterases on the oxygen isotope composition of phosphate

Trace concentration – Huge impact: Nitrate in the calcite/Eu(III) system

Both soluble and colloidal iron phases control dissolved iron variability in the tropical North Atlantic Ocean

Community N and O isotope fractionation by sulfide-dependent denitrification and anammox in a stratified lacustrine water column

The influence of particle size and structure on the sorption and oxidation behavior of birnessite: I. Adsorption of As(V) and oxidation of As(III)

A general model for predicting the solubility behavior of H2O–CO2 fluids in silicate melts over a wide range of pressure, temperature and compositions

Theoretical constraints on the effects of pH, salinity, and temperature on clumped isotope signatures of dissolved inorganic carbon species and precipitating carbonate minerals

Biogeochemical cycling of zinc and its isotopes in the Southern Ocean

The oceanic mass balance of copper and zinc isotopes, investigated by analysis of their inputs, and outputs to ferromanganese oxide sediments

Determination and application of the equilibrium oxygen isotope effect between water and sulfite

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  Analab corrosion resistant laboratory appliances

Analab manufacture corrosion resistant laboratory appliances such hotplates, acid vapour cleaning stations and sample preparation devices. Our devices can be used with a wide range of acids and bases (HF to NH4OH). We are represented in North America by Isomass Scientific.

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Forest emissions, wildfires explain why ancient Earth was so hot
Science Daily
The release of volatile organic compounds from Earth's forests and smoke from wildfires 3 million years ago had a far greater impact on global warming than ancient atmospheric levels of carbon dioxide, according to a new study. The research provides evidence that dynamic atmospheric chemistry played an important role in past warm climates, underscoring the complexity of climate change and the relevance of natural components.
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Ammonite jaws provide a window into ancient climate
Sarah Zielinski writes, "When I was searching for ammonite fossils last year, I tended to concentrate on searching out the distinctive coiled shapes that were the shells of these once-abundant marine invertebrates. Other parts of the animal that lived inside that shell could be fossilized as well, but most of us would never notice such small bits."
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Tree roots in the mountains 'acted like a thermostat' for millions of years
Science Codex
For the first time, scientists have discovered how tree roots in the mountains may play an important role in controlling long-term global temperatures. Researchers from Oxford and Sheffield Universities have found that temperatures affect the thickness of the leaf litter and organic soil layers, as well as the rate at which the tree roots grow.
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Substance in photosynthesis was in play in ancient, methane-producing microbes
A process that turns on photosynthesis in plants likely developed on Earth in ancient microbes 2.5 billion years ago, long before oxygen became available, according to new research.
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Asteroids can have a highly varied internal structure
Science Daily
ESO's New Technology Telescope has been used to find the first evidence that asteroids can have a highly varied internal structure. By making exquisitely precise measurements, astronomers have found that different parts of the asteroid Itokawa have different densities. As well as revealing secrets about the asteroid's formation, finding out what lies below the surface of asteroids may also shed light on what happens when bodies collide in the solar system, and provide clues about how planets form.
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Missed last week's issue? See which articles your colleagues read most.

    Source of Galapagos eruptions not where models place it (University of Oregon via ScienceDaily)
Grand Canyon is not so ancient (Nature)
'Doughnut Rock' added to Mars' mystery object hall of fame (National Geographic)

Don't be left behind. Click here to see what else you missed.


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