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Beneath Earth's surface, scientists find long 'fingers' of heat
EurekAlert
Scientists seeking to understand the forces at work beneath the surface of the Earth have used seismic waves to detect previously unknown "fingers" of heat, some of them thousands of miles long, in Earth's upper mantle. Their discovery, published Sept. 5 in Science Express, helps explain the "hotspot volcanoes" that give birth to island chains such as Hawai'i and Tahiti.
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SOCIETY NEWS


Goldschmidt Plenaries on YouTube
GS
Videos of Goldschmidt2013 plenaries are now available on the Goldschmidt Conference's YouTube Channel. This year's plenary speakers are Richard Carlson, Francis Albarede, Paolo Gasparini, Robert Hazen, and Sujoy Mukhopadhyay. A number of past conference plenaries are also available for available including Victoria Orphan (2011), Janet Hering (2009) and Sir David King (2009).
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Geochemistry of Geologic CO2 Sequestration
GS
Given the public's interest and concern over the impact of atmospheric greenhouse gases (GHG) on global warming and related climate change patterns, this Reviews in Mineralogy and Geochemistry short course aims to provide an authoritative summary of the fundamental geochemical and mineralogical processes associated with gas-water-mineral-interactions encountered during geological sequestration of CO2. The course will be held at the Lawrence Berkeley National Laboratory on Dec. 7-8, 2013 in conjunction with the 2013 Fall AGU meeting. Online registration is now open and limited to 110 participants. Discounted rates are available for members, and participants who register before Oct. 7, 2013. The course convenors are Donald DePaolo, David Cole, Alexandra Navrotsky and Ian Bourg.
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PRODUCT SHOWCASE
  Create Your Sample database

Do you work with samples of rocks, minerals, soils, water, etc.? SESAR can help you organize your sample metadata and ensure that your samples can be unambiguously cited, linked to data and publications via use of the IGSN (International Geo Sample Number), and become part of a global sample catalog.
 


Geochemical Career Center
GS


New! Senior Research Officer (Ion Probe/SIMS) (University of Western Australia, Perth, Australia)




Assistant Professor of Organic Geochemistry (The University of Tulsa, Tulsa, OK, USA)




Ph.D. Studentship in Mineral Surface (Geo)Chemistry (Umeaa University, Umeaa, Sweden)




Program Director of the Geobiology and Low-Temperature Geochemistry Program (National Science Foundation, Arlington, VA, USA)




Application Specialist - Gas Isotope MS (m/f) (Thermo Scientific, Germany)




Postdoctoral and/or PhD position(s) for Re-Os geochemistry of shale's and hydrocarbons (Colorado State University, Fort Collins, CO, USA)



Tenure-Track Position in Organic Geochemistry (University of Colorado, Boulder, CO, USA)



Postdoctoral Researcher, Mantle Processes Group (Stanford University, Stanford, CA, USA)


Harry S. Truman Fellowship in National Security Science and Engineering (Sandia National Laboratories, Albuquerque, NM, USA)




Final Days! Geochemistry and Habitability of Ancient Waters: Postdoctoral Position Available (University of Toronto, Toronto, ON, Canada)

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.118, 1 October 2013)
GS
Slow advance of the weathering front during deep, supply-limited saprolite formation in the tropical Highlands of Sri Lanka

Transformations of the chemical compositions of high molecular weight DOM along a salinity transect: Using two dimensional correlation spectroscopy and principal component analysis approaches

Gold solubility and partitioning between sulfide liquid, monosulfide solid solution and hydrous mantle melts: Implications for the formation of Au-rich magmas and crust–mantle differentiation

Disproportionation and thermochemical sulfate reduction reactions in S–H2O–CH4 and S–D2O–CH4 systems from 200 to 340 °C at elevated pressures

Ca isotope fractionation in a high-alkalinity lake system: Mono Lake, California

Characterization of the reaction and transport properties of porous rhyolite and its application to the quantitative understanding of the chemical weathering rate

[open access] Evaluation of the rhenium–osmium geochronometer in the Phosphoria petroleum system, Bighorn Basin of Wyoming and Montana, USA

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New in G-Cubed
GS
Nature and distribution of slab-derived fluids and mantle sources beneath the Southeast Mariana Forearc Rift

Multivariate statistical analysis and partitioning of sedimentary geochemical data sets: General principles and specific MATLAB scripts

Numerical modeling of phase separation at main endeavour field, Juan de Fuca Ridge

The composition and distribution of the rejuvenated component across the Hawaiian plume: Hf-Nd-Sr-Pb isotope systematics of Kaula lavas and pyroxenite xenoliths

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LATEST NEWS


CIDER Workshop to follow 2013 AGU Fall Meeting
This workshop serves as a kick-off for the CIDER 2014 summer program and as a retrospective on the CIDER 2013 summer program. It will be held the Saturday following the Fall AGU meeting from 9 a.m. to 5 p.m. Dec. 14, 2013 in Berkeley, Calif. Stay an extra day after AGU, decompress and get acquainted with CIDER in the relaxed atmosphere of a few keynote talks and lots of time for discussion. The registration deadline is Nov. 12, 2013. CIDER-II is funded by the NSF/FESD program.
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Industrial Revolution likely brought the Little Ice Age to an end
Ars Technica
In the mid-1800s, a peculiar thing happened to the glaciers of the European Alps. Rather than growing as would have been expected given the temperature and precipitation at the time, they began to shrink. Scientists now think that soot from the Industrial Revolution might be to blame for the glaciers' abrupt retreat.
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Buried Saharan rivers might have been early expressways
ScienceNews
Three rivers now interred beneath heaps of sand in the Sahara Desert might have been the superhighways of the Stone Age. Simulations reveal that the rivers, each about as big as the Missouri or Rhine River, meandered across the Sahara 125,000 years ago.
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Bermuda Triangle earthquake triggered 1817 tsunami
LiveScience
A "tidal wave" violently tossed ships docked along the Delaware River south of Philadelphia at about 11 a.m. ET on Jan. 8, 1817, according to newspapers of the time. Turns out, that tidal wave was actually a tsunami, launched by a powerful magnitude-7.4 earthquake that struck at approximately 4:30 a.m. ET near the northern tip of the Bermuda Triangle, a new study finds. The study links the tsunami to a known earthquake.
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An arsenic forecast for China
Science
About 140 million people worldwide drink groundwater containing unsafe levels of arsenic. Chronic exposure to this tasteless, odorless poison leads to health effects such as skin lesions and cancer. In China, pollution is pervasive and anthropogenic groundwater contamination has attracted attention. Naturally-occurring arsenic is perhaps less widespread, yet equally dangerous to those exposed.
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    An update on blind spots of pesticide degradation in the environment (German Research Center for Environmental Health)
Underwater volcano is Earth's biggest (Nature)
Big dig to unearth the mysteries locked deep inside our planet (Calgary Herald)
Naturally occurring methane found in some Pennsylvania water (U.S. Geological Survey)

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


 

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