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Clues to trapping carbon dioxide in rock: Calcium carbonate takes multiple, simultaneous roads to different minerals
Pacific Northwest National Laboratory via ScienceDaily
Researchers used a powerful microscope that allows them to see the birth of calcium carbonate crystals in real time, giving them a peek at how different calcium carbonate crystals form.
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SOCIETY NEWS


Copy editor for Elements Magazine
GS
Elements magazine is seeking a copy editor to join the editorial team as it heads into its second decade. There are no geographic restrictions on the location of the copy editor, but there must be ready access to the Internet. This is a position subject to annual contract renewal. Start date is Jan. 1, 2015 with a time commitment of approximately 80 hours every two months. For additional information about this job see the Elements job posting (pdf). Applications will be reviewed starting Monday, Oct. 13, and the position will remain open until filled.
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PRODUCT SHOWCASE
  Analab Corrosion Resistant Laboratory Appliances

Analab manufacture corrosion resistant laboratory appliances such as acid vapour cleaning stations, hotplates, 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.

Please visit us at GSA 2014 in Vancouver, Booth 1018.
 


Geochemical Career Center
GS


New! Postdoctoral Research Associate – Geochemistry (Oak Ridge National Laboratory, Oak Ridge, TN, USA)




Postdoctoral Researcher in Microbial Geochemistry (Duke University, Durham, NC, USA)




Postdoctoral Fellowship Positions in Geochemistry, Cosmochemistry, and Astrobiology (Carnegie Institution, Washington, DC, USA)




Professor (W3) for Petrology (Karlsruhe Institute of Technology, Karlsruhe, Germany)




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




Final Days! Associate Environmental Geoscientist (Illinois State Geological Survey, Champaign, IL, USA)




Final Days! Senior Staff Associate (Lamont-Doherty Earth Observatory of Columbia University of Columbia University, Palisades, NY, USA)




Final Days! Lectureship in Earth Sciences (University of St. Andrews, St. Andrews, UK)


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

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New in GCA (v.141, 15 September 2014)
GS
Triple oxygen isotopes in biogenic and sedimentary carbonates

Redox conditions and trace metal cycling in coastal sediments from the maritime Antarctic

Carbon dioxide in silica-undersaturated melt. Part I: The effect of mixed alkalis (K and Na) on CO2 solubility and speciation

Mobilization of metals from Eau Claire siltstone and the impact of oxygen under geological carbon dioxide sequestration conditions

Extending the analytical window for water-soluble organic matter in sediments by aqueous Soxhlet extraction

Occurrence and abundance of 6-methyl branched glycerol dialkyl glycerol tetraethers in soils: Implications for palaeoclimate reconstruction

WA1ms: A ∼2.61 Ga muscovite standard for 40Ar/39Ar dating

Empirical calibration of the clumped isotope paleothermometer using calcites of various origins

High-density fluids and the growth of monocrystalline diamonds

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New in G-Cubed (v.15, issue 7)
GS
In situ geochemistry of Lower Paleozoic dolomites in the northwestern Tarim basin: Implications for the nature, origin, and evolution of diagenetic fluids

Pb isotope compositions of detrital K-feldspar grains in the upper-middle Yangtze River system: Implications for sediment provenance and drainage evolution

Variable remanence acquisition efficiency in sediments containing biogenic and detrital magnetites: Implications for relative paleointensity signal recording

Active alkaline traps to determine acidic-gas ratios in volcanic plumes: Sampling techniques and analytical methods

Skeletal oxygen and carbon isotope compositions of Acropora coral primary polyps experimentally cultured at different temperatures

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GEOCHEMISTRY IN THE NEWS


Life forms appeared at least 60 million years earlier than previously thought
Trinity College Dublin via ScienceDaily
Life forms appeared at least 60 million years earlier than previously thought. They added oxygen to our atmosphere, which led to the evolution of complex life.
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Study resolves discrepancy in Greenland temperatures during end of last ice age
Oregon State University
A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age – resolving a long-standing paradox over when that warming occurred. Large ice sheets covered North America and northern Europe some 20,000 years ago during the coldest part of the ice age, when global average temperatures were about four degrees Celsius colder than during pre-industrial times.
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Researchers model Yellowstone super-eruption ash cloud
redOrbit
In 1883, a volcanic eruption in a small archipelago of the Dutch East Indies changed the world. The eruption and subsequent tsunamis caused by the Krakatau eruption resulted in over 36,000 deaths, including all 3,000 souls on the island. The ocean floor was altered, and temperature and weather patterns didn't return to normal for 5 years. And although the ash in the atmosphere produced spectacular sunsets, the lowered temperatures and acid rains devastated crops around the world.
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Nominations open for the J. Lawrence Smith Medal of the National Academy of Sciences
National Academy of Sciences
The J. Lawrence Smith Medal and prize of $25,000 are awarded by the U.S. National Academy of Sciences for recent original and meritorious investigations of meteoric bodies. The award was established as a gift from Sarah Julia Smith in memory of her husband and has been presented since 1888. Nominees need not be U.S. citizens nor members of the National Academy.

Information on the award can be found at http://www.nasonline.org/about-nas/awards/j-lawrence-smith-medal.html. Nomination packages consist of a 2-3 page nomination letter, 2 page CV for the candidate, bibliography listing no more than 12 significant publications, and no more than 3 letters of support. Nominations are due before Oct. 1, 2014 and are submitted on-line at https://awards.nasonline.org.

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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    Unique meteorite helps researchers uncover the climate history of Mars ( redOrbit.com)
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