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What lurks beneath the Central Andes?
Erik Klemetti writes, "Geology is full of questions — that is why it is such a vibrant science. There are so many questions about how the processes that make and destroy rocks on this planet work and, in many cases, we've only scratched the surface (literally and figuratively). Being a volcanologist/petrologist, I am especially interested in questions about the source of magma and where it is stored in the crust — tricky things to quantify because all our evidence is circumstantial."
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  Visit the Geosciences Knowledge Library

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: Tuesday's Plenary and Geochemical Fellows
PLENARY. Tuesday's plenary speaker is Francis Albarède, Ecole Normale Supérieure – Lyon. His talk on Isotopes of Disease will be presented at 1:15 p.m. in Palazzo dei Congressi on Tuesday, August 27.

FELLOWS. On Wednesday, before the plenary speaker, The Geochemical Society and European Association of Geochemistry will be presenting the honor of 2013 Geochemical Fellow to the following exemplary scientists: Vickie C. Bennett, Australian National University; Jérôme Chappellaz, Laboratoire de Glaciologie et Geophysique de l'Environnement; John M. Eiler, California Institute of Technology; Kenneth A. Farley, California Institute of Technology; Yingwei Fei, Carnegie Institution of Washington; Guillaume Fiquet, Universite Pierre et Marie Curie; Kliti Grice, Curtin University; Peter B. Kelemen, Lamont-Doherty Earth Observatory, Columbia University; Richard D. Pancost, University of Bristol; Frank M. Richter, University of Chicago; and Hisayoshi Yurimoto, Hokkaido University.

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  Explore & Mine Petrological Data

PetDB gives you interactive access to a global synthesis of chemical, isotopic, and mineralogical analyses of rocks, minerals, and melt inclusions, focusing on igneous and metamorphic rocks from the ocean floor and mantle xenoliths. Recent additions bring the total holdings to 2,316,829 chemical values for 64,526 Samples!

Geochemical Career Center

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

Associate Isotope Geochemist or Isotop Geochemist (depending on qualifications) (Illinois State Geological Survey, Urbana-Champaign, IL, USA)

Research Lab Specialist (electron microscopy, Auger nanoscope, XRD) (University of Michigan, Ann Arbor, MI, USA)

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

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

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

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

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New in GCA (v.116, 1 September 2013)
GCA v.116 is a special issue titled Looking Inside: 3D Structures and Meteorites with issue editors Dominik Hezel, Jon Friedrich and Masayuki Uesugi

The texture of a fine-grained calcium–aluminium-rich inclusion (CAI) in three dimensions and implications for early solar system condensation

Three-dimensional imaging of ordinary chondrite microporosity at 2.6 μm resolution

Metal veins in the Kernouvé (H6 S1) chondrite: Evidence for pre- or syn-metamorphic shear deformation

Three-dimensional observation and morphological analysis of organic nanoglobules in a carbonaceous chondrite using X-ray micro-tomography

Martian subsurface fluid pathways and 3D mineralogy of the Nakhla meteorite

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New in G-Cubed (v.14/6, June 2013)
Investigating δ13C and Δ14C within Mytilus californianus shells as proxies of upwelling intensity

Natural hydrocarbon seepage on the continental slope to the east of Mississippi Canyon in the northern Gulf of Mexico

The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean

Mafic injection as a trigger for felsic magmatism: A numerical study

Seawater recharge into oceanic crust: IODP Exp 327 Site U1363 Grizzly Bare outcrop

[Open Access] A reference Earth model for the heat-producing elements and associated geoneutrino flux

Microstructures and quartz lattice-preferred orientations in the eclogite-bearing migmatitic gneisses of the D'Entrecasteaux Islands, Papua New Guinea

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Newly discovered flux in the Earth may solve missing-mantle mystery
MIT News via Space Daily
It's widely thought that the Earth arose from violent origins: Some 4.5 billion years ago, a maelstrom of gas and dust circled in a massive disc around the sun, gathering in rocky clumps to form asteroids. These asteroids, gaining momentum, whirled around a fledgling solar system, repeatedly smashing into each other to create larger bodies of rubble &madsh; the largest of which eventually cooled to form the planets. But to date, scientists have found that, quite literally, something doesn't add up.
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Geochemical 'fingerprints' leave evidence that megafloods eroded steep gorge
The Yarlung-Tsangpo River in southern Asia drops rapidly through the Himalaya Mountains on its way to the Bay of Bengal, losing about 7,000 feet of elevation through the precipitously steep Tsangpo Gorge. For the first time, scientists have direct geochemical evidence that the 150-mile long gorge, possibly the world's deepest, was the conduit by which megafloods from glacial lakes, perhaps half the volume of Lake Erie, drained suddenly and catastrophically through the Himalayas when their ice dams failed at times during the last 2 million years.
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Plans for manned mission to Mars drawn up by British team
The Telegraph
The mission would involve sending a three-man crew to the Red Planet in a specially designed spacecraft that would generate its own gravity. By splitting the spacecraft into two sections, connected by a tether, it could spin to generate artificial gravity through the centrifugal forces. The scientists, who work at Imperial College London and have collaborated with Nasa on previous robotic missions to Mars, also propose sending a habitat module, a rover and return vehicle in advance.
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Missed last week's issue? See which articles your colleagues read most.

    How Mars' atmosphere got so thin: Reports detail Curiosity clues to atmosphere's past (ScienceDaily)
Submerged volcanoes cast doubt on Antarctic glaciation theory (

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