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Source of Galapagos eruptions not where models place it
University of Oregon via ScienceDaily
Images gathered by scientists using seismic waves penetrating to a depth of 300 kilometers have found an anomaly that likely is the volcanic mantle plume of the Galapagos Islands. It's not where geologists and computer modeling had assumed.
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SOCIETY NEWS


Goldschmidt2014: Abstract deadline Feb. 8
GS
This is a final reminder that the deadlines for abstract submissions and travel grants are this Saturday, Feb. 8. This year, delegates have the option of submitting two abstracts as a presenting author. Be sure to see our list of sessions as well as abstract submission information for submission procedures. Early registration for members is 590 US$ for delegates and 350 US$ for students. Please encourage your colleagues and students who plan to attend Goldschmidt2014 and are not members of one of the sponsoring societies (GS, EAG, GSJ) to join first, so that they may qualify for the member rate.
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Geochemical Career Center
GS


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)



Final Days! Graduate student opportunities in environmental, analytical and exploration geochemistry (MAGNET, various locations, Canada)



Final Days! Professor of Geochemistry and Economic Geology (Karlsruhe Institute of Technology, Karlsruhe, Germany)

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)
GS
Chlorite dissolution rates under CO2 saturated conditions from 50 to 120 °C and 120 to 200 bar CO2

Kinetic vs. thermodynamic control of degassing of H2O–S ± Cl-bearing andesitic melts

Partitioning of platinum-group elements and Au between sulfide liquid and basalt and the origins of mantle-crust fractionation of the chalcophile elements

Nucleation and growth kinetics of RaxBa1−xSO4 solid solution in NaCl aqueous solutions

Origin of eclogite and pyroxenite xenoliths from the Victor kimberlite, Canada, and implications for Superior craton formation

Cosmic-ray exposure ages of fossil micrometeorites from mid-Ordovician sediments at Lynna River, Russia

Rare earth elements and Nd isotopes tracing water mass mixing and particle-seawater interactions in the SE Atlantic

Anisotropic diffusion at the field scale in a 4-year multi-tracer diffusion and retention experiment – I: Insights from the experimental data

Insights into early Earth from the Pt–Re–Os isotope and highly siderophile element abundance systematics of Barberton komatiites

4He behavior in calcite filling viewed by (U–Th)/He dating, 4He diffusion and crystallographic studies

The impact of evaporation to the isotope composition of DIC in calcite precipitating water films in equilibrium and kinetic fractionation model

A combined chemical, isotopic and microstructural study of pyrite from roll-front uranium deposits, Lake Eyre Basin, South Australia

Conspicuous assemblages of hydrated minerals from the H2O–MgSO4–CO2 system on Jupiter's Europa satellite

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LATEST NEWS


Dead plants hold earthquake secrets
LiveScience
With a few tricks borrowed from the oil industry, scientists are hoping to one day better understand why earthquakes start and stop. Geologists would love to know what controls earthquakes. But one of the best ways to answer that question — drilling into faults — is expensive and difficult. An easier alternative is to study faults exposed on Earth's surface, and look at "fossilized" earthquakes preserved along the faults.
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Grand Canyon is not so ancient
Nature
A longstanding geological fight over the age of one of the most iconic landscapes in the United States — the Grand Canyon — may finally be over. The massive chasm does not date back 70 million years, as earlier work had suggested, but was born in its entirety 5‒6 million years ago when older, shorter canyons linked together to form the complete structure. This explanation aims to reconcile a flurry of seemingly contradictory findings that enlivened discussion about when the canyon was carved.
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River roulette: Rethinking how rivers erode
Mother Nature Network
Rivers may seem steady and predictable, but it turns out that they may be a little wilder than scientists once thought. Instead of evenly eating through rock for millions of years, inching downward at a constant rate, rivers erode rock at different speeds through time, according to a recent study.
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Opportunity turns 10, makes discovery, shows old rovers can still rock
Los Angeles Times
Opportunity is marking its 10th anniversary on Mars with a little bit of well-earned recognition. The NASA rover was eclipsed in popularity by its much more Wall-E counterpart, Curiosity, when that high-rolling rover landed nine years later. Curiosity was a superstar. This was a sleek, brawny geochemistry lab, the biggest robot ever landed on another planet. And its Twitter feed is consistently adorable.
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'Doughnut Rock' added to Mars' mystery object hall of fame
National Geographic
Mars has a way of serving up mystery objects that befuddle and delight us earthlings. Crumbling canals, a mysterious sphinx and now something that looks like a crumpled jelly doughnut have confused and delighted scientists.
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    Mars once had water to host life (Business Standard)
Southern Alps being pushed up 'shockingly' fast (The New Zealand Herald)

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


 

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