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Harry Hess Postdoctoral Research Associate in Geosciences

The Department of Geosciences at Princeton University is accepting applications for a Postdoctoral Research Associate










 




Ice on a scorching planet
MIT Technology Review
Mercury, the innermost planet in our solar system, revolves around the sun in 88 days, making a tight orbit that keeps the planet toasty. Surface temperatures can reach a blistering 425 °C—hot enough to liquefy lead. Now researchers from NASA, MIT, the University of California at Los Angeles, and elsewhere have discovered evidence that the planet may harbor pockets of water ice, along with organic material, in several permanently shadowed craters near its north pole.
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 Society News


Goldschmidt2013 registration opens
GS
Online registration for Goldschmidt2013 in Florence, Italy is now open. Early registration is 540 € for delegates and 345 € for students. Geochemical Society members receive an additional 50 € discount (490 € / 295 € respectively). To receive the discount you must submit your member number with your registration. Current members were sent an email yesterday (Feb. 25) with their membership number. If you did not receive it, please visit our member login to locate your member number or check your member status. The Abstract deadline is April 12, 2013 (23:59 UTC), and the Early Registration deadline is June 25, 2013.
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Geochemical Career Center Postings
GS
All jobs posted in the Geochemical Career Center are cross-promoted through our Facebook page and right here in Geochemical News.


New! Maersk Oil Chair in Applied Geophysics (Aarhus University, Aarhus, Denmark)




Organic Geochemist (ExxonMobil Research and Engineering Company, Annandale, NJ, USA)



Postdoctoral opportunities in applied geochemistry research (Multidisciplinary Applied Geochemistry Network, Canada)



Postdoctoral position: FT-ICR mass spectrometry and IR laser spectroscopy of ion clusters (Hong Kong University, Hong Kong, China)


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

Employers: Post jobs | Search resumes | Employer resources

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New in GCA (v.104, 1 March 2013)
GS
Preservation and detection of microstructural and taxonomic correlations in the carbon isotopic compositions of individual Precambrian microfossils

Control of sulphate and methane distributions in marine sediments by organic matter reactivity

Organic functional group transformations in water at elevated temperature and pressure: Reversibility, reactivity, and mechanisms

Integrated multi-site U–Th chronology of the last glacial Lake Lisan

Experimentally determined mineral/melt partitioning of first-row transition elements (FRTE) during partial melting of peridotite at 3 GPa

A new approach for measuring dissolution rates of silicate minerals by using silicon isotopes

Zr complexation in high pressure fluids and silicate melts and implications for the mobilization of HFSE in subduction zones

Species-dependent silicon isotope fractionation by marine diatoms

Structure and reactivity of As(III)- and As(V)-rich schwertmannites and amorphous ferric arsenate sulfate from the Carnoulès acid mine drainage, France: Comparison with biotic and abiotic model compounds and implications for As remediation

The influence of minerals on decomposition of the n-alkyl-α-amino acid norvaline under hydrothermal conditions

Experimental and crystal chemical study of the basalt–eclogite transition in Mars and implications for martian magmatism

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 Latest News


3rd International Sclerochronology Conference
Sclerochronology Conference
The 3rd International Sclerochronology Conference is to be held in Caernarfon, North Wales, U.K. between Saturday 18 and Wednesday 22 May 2013. Early registration and abstract submission is March 1. The meeting venue will be Galeri, a modern conference centre located on the beautiful shores of the Menai Strait in the ancient walled Royal Borough, and World Heritage Site, of Caernarfon. This conference brings together scientists studying all aspects of sclerochronology – the study of physicochemical variations in periodically growing hard tissues of organisms. Submitted by David Gillikin.
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Russian fireball inspires journey into the world of meteorites
Universe Today
Recently a 7,000 ton, 50-foot (15-meter) wide meteoroid made an unexpected visit over Russia to become the biggest space rock to enter the atmosphere since the Tunguska impact in 1908. While scientists still debate whether it was asteroid or comet that sent a tree-flattening shockwave over the Tunguska River valley, we know exactly what fell.
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Remember that hole in the ozone? Well, it's shrinking
PolicyMic
The European Space Agency recently announced the latest good news for one of the most successful international pollution regulation programs to date. According to measurements by Europe's Met Op weather satellite, in 2012 the hole in the ozone layer was smaller than it had been for a decade. Longer-term observations also show that the ozone layer has been strengthening, subsequent to international agreements limiting ozone-depleting substances, especially CFCs.
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Hints of lost continent found beneath Indian Ocean
Wired
Geological detectives are piecing together an intriguing seafloor puzzle. The Indian Ocean and some of its islands, scientists say, may lie on top of the remains of an ancient continent pulled apart by plate tectonics between 50 million and 100 million years ago. Painstaking detective work involving gravity mapping, rock analysis, and plate movement reconstruction has led researchers to conclude that several places in the Indian Ocean, now far apart, conceal the remnants of a prehistoric land mass they have named Mauritia. In fact, they say, the Indian Ocean could be "littered" with such continental fragments, now obscured by lava erupted by underwater volcanoes.
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Ancient fossilized sea creatures yield oldest biomolecules isolated directly from a fossil
Lab Manager
Though scientists have long believed that complex organic molecules couldn't survive fossilization, some 350-million-year-old remains of aquatic sea creatures uncovered in Ohio, Indiana, and Iowa have challenged that assumption. The spindly animals with feathery arms—called crinoids, but better known today by the plant-like name "sea lily"—appear to have been buried alive in storms during the Carboniferous Period, when North America was covered with vast inland seas. Buried quickly and isolated from the water above by layers of fine-grained sediment, their porous skeletons gradually filled with minerals, but some of the pores containing organic molecules were sealed intact.
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Search for 'unparticles' focuses on Earth's crust
PhysicsWorld
Evidence of a minuscule force that could exist between two particle spins over long distances could be lurking in magnetized iron under the Earth's surface. That is the conclusion of a new study by physicists in the U.S., who have used our planet's vast stores of polarized spin to place exacting limits on the existence of interactions mediated by unusual entities such as "unparticles".
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    Russian scientists collect, study pieces of meteor (Los Angeles Times)
Is the Earth cooking up a super volcano? (WFAE-FM)
Climate controversy solved by chemistry? Which volcanic eruptions caused global cooling (Science 2.0)
British researchers find odd, cold volcanic vent in Antarctic waters (Sci-News.com)
NASA launches powerful Earth-observing satellite (Voice of America)



 

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