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Earth's core affects length of day
Researchers studied the variations and fluctuations in the length of day over a one to 10 year period between 1962 and 2012. Research at the University of Liverpool has found that variations in the length of day over periods of between one and 10 years are caused by processes in Earth's core.
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For decades Thermo Fisher Scientific has worked with Geoscientists helping to achieve a greater understanding of the earth and our planets. The data provided from the innovative technologies has been documented in a wide variety of literature. This knowledge is now accessible on Learn more about instruments and applications for the analysis of elements and isotopes.


Goldschmidt2013: Distinguish Service Award
The 2013 Distinguished Service Award presentation will be held Thursday, Aug. 29 at 1:15 p.m. in the Palazzo dei Congressi, immediately before the Plenary. The four recipients are Kerstin Lehnert, Lamont-Doherty Earth Observatory, Klaus Peter Jochum and Baerbel Sarbas, Max-Planck Institut fur Chemie, and J. Douglas Walker, University of Kansas. They are the directors of the on-line geochemical databases EarthChem, GeoReM, GEOROC, and NAVDAT, respectively and are recognized for their long-running efforts to bring modern on-line data management to geochemistry. Between them, these databases freely present to the geochemical community hundreds of thousands of rock and standard analyses with intelligently designed query structures that allow quick retrieval of the most pertinent data with the minimum of effort. Their contributions in data compilation and improvements to the standard of data reporting in the geochemical community are paving the way to a future where geochemical data can be efficiently preserved, easily and intelligently queried and discovered, and thereby be used for scientific discovery by the broad geoscience research and education community.
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Geochemical Career Center

Microprobe Lab Manager (Ruhr Universitaet Bochum, Bochum, Germany)

Tenure Track Position in Stable Isotope Geochemistry (Temple University, Philadelphia, PA, USA)

PhD in Experimental Geochemistry (GNS Science, Taupo, New Zealand)

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  Publish your data with EarthChem

Contribute your geochemical data to the EarthChem Library so that these data can be discovered and reused now and in the future. Published datasets receive a citable DOI, open access, long-term availability, and investigator data compliance support. Find out more at

New in Geochemistry, Geophysics, Geosystems
Using ammonium pore water profiles to assess stoichiometry of deep remineralization processes in methanogenic continental margin sediments

New views on "old" carbon in the Amazon River: Insight from the source of organic carbon eroded from the Peruvian Andes

Genesis of Cenozoic low-Ca alkaline basalts in the Nanjing basaltic field, eastern China: The case for mantle xenolith-magma interaction

Composition of plume-influenced mid-ocean ridge lavas and glasses from the Mid-Atlantic Ridge, East Pacific Rise, Galapagos Spreading Center, and Gulf of Aden

Rare earth element concentrations and Nd isotopes in the Southeast Pacific Ocean

Rapid eruption of the Ningwu volcanics in eastern China: Response to Cretaceous subduction of the Pacific plate

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Conference Calendar August Deadlines
Abstracts Deadlines
Aug. 6: Geological Society of America Annual Meeting (USA)
Aug. 6: Fall AGU (USA)
Aug. 29: Workshop on Planetesimal Formation and Differentiation (USA)

Registration Deadlines
Aug. 31: 7th International Workshop on Chemical Bioavailability (UK)
Aug. 31: 26th International Applied Geochemistry Symposium incorporating the New Zealand Geothermal Workshop (New Zealand)

Visit the Conference Calendar for more conference links and instructions for conference organizers to submit their listings.

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Improved interpretation of volcanic traces in ice
How severely have volcanoes contaminated the atmosphere with sulfur particles in past millennia? To answer this question, scientists use ice cores, among others, as climate archives. But the results differ, particularly in some major volcanic major events of the past, depending on whether the cores come from Antarctica or Greenland. Atmospheric scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Max Planck Institute for Meteorology in Hamburg have now found an explanation that could significantly improve the interpretation of ice cores.
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How earthquakes heal themselves — and why that's important
On May 12, 2008, a powerful 7.9-magnitude earthquake struck the Wenchuan county of Sichuan province in south-central China. It was the most powerful quake to hit China in at least 50 years. A study in the latest Science has relied on the Wenchuan quake to add a small but possibly important clue to the mystery of why and how earthquakes happen.
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Melting in the Afar helps scientists understand how oceans form
PlanetEarth Online via
Lavas from the Afar Depression in Ethiopia, where three tectonic plates are spreading apart, have given scientists a new insight into how ocean basins form. The Afar region is geologically unique, as it is the only place in the world where two continents are at the advanced stage of pulling away from each other. By studying this so-called rifting process, geologists hope to better understand how other ocean basins formed.
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Missed last week's issue? See which articles your colleagues read most.

    Cold War nuclear radiation creates anti-poaching tool (Inside Science)
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Egyptian iron beads likely fell from the sky (The Columbus Dispatch)

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