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The ancient Martian rock that fell to Earth
NWA 7533 traveled a long way to get into the lab of Munir Humayun at Florida State University. The ancient meteorite was recovered in 2011 after its long interplanetary journey. Soon the space rock was sold off to a collectors in the United States and France, but eventually a sample found its way into Humayun's hands. Once he got a look at it, Humayun knew he had something rare.
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2014 officer election results
Laurie Reisberg (CRPG, France), Anton Eisenhauer (GEOMAR, Germany), Chris Hawkesworth (University of St. Andrews, UK), and Tomoki Nakamura (Tohoku University, Japan) have been elected by the Geochemical Society membership to serve as Vice-President, Secretary, Director, and Director, respectively. We are extremely grateful to all the candidates for participating, and to the 1,026 Geochemical Society members who cast their votes in this election. The terms of the new Board members will begin on Jan. 1, 2014, and they will be joining the 12 other members of the 2014 GS Board of Directors.
Geochemical Career Center
New! International research chair in stable isotope biogeochemistry / paleoceanography (LabexMER, Brest/Dinard, France)
New! Post-doc in Geochemistry at GEUS (Geological Survey of Denmark and Greenland, Copenhagen, Denmark)
New! Post-docs and Graduate Students Opportunities at ASU, MIT, UC Riverside, U Maryland and U Washington (Multi-Institutional, USA)
Assistant Professor of Mineralogy and/or Petrology (Drexel University, Philadelphia, PA, USA)
Executive Editor for Elements Magazine (Mineralogical Society of America, Chantilly, VA, USA)
Open Faculty Position in Experimental Earth Science (Columbia University, Palisades, NY, USA)
Assistant/Associate Professor in Geochemistry (Laurentian University, Sudbury, ON, Canada)
Assistant or Associate Professor - Lithogeochemistry (Colorado School of Mines, Golden, CO, USA)
Manager of Stable Isotope Laboratory (University of Tennessee, Knoxville, TN, USA)
Roger E. Deane Postdoctoral Fellowship (University of Toronto, Toronto, ON, Canada)
Tenure Track Assistant Professor-Geochemistry (Stony Brook University, Stony Brook, NY, USA)
Faculty Member in Geobiology or Paleobiology (UCLA, Los Angeles, CA, USA)
Research Associate in Raman Spectroscopy (University of Colorado, Boulder, CO, USA)
Assistant Professor of Coastal Systems and Geochemistry (University of Massachusetts Boston, Boston, MA, USA)
Final Days! Tenured Full Professor in Organic Geochemistry (University of Oldenburg, Oldenburg, Germany)
Final Days! Assistant Professor of Organic Geochemistry (The University of Tulsa, Tulsa, OK, USA)
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.
New in GCA (v.122, 01 December 2013)
Iron valence state of fine-grained material from the Jupiter family comet 81P/Wild 2 – A coordinated TEM/STEM EDS/STXM study
Groundwater ages and reaction rates during seawater circulation in the Dead Sea aquifer
A petrologic, thermodynamic and experimental study of brachinites: Partial melt residues of an R chondrite-like precursor
[open access] The abundance, distribution, and isotopic composition of Hydrogen in the Moon as revealed by basaltic lunar samples: Implications for the volatile inventory of the Moon
Iron monosulfide accumulation and pyrite formation in eutrophic estuarine sediments
Redox interactions between Fe and cysteine: Spectroscopic studies and multiplet calculations
Climate dependence of feldspar weathering in shale soils along a latitudinal gradient
Petrogenesis of Cenozoic, alkalic volcanic lineages at Mount Morning, West Antarctica and their entrained lithospheric mantle xenoliths: Lithospheric versus asthenospheric mantle sources
Does the reactive surface area of sandstone depend on water saturation?—The role of reactive-transport in water film
Experimental determination of equilibrium Fe isotopic fractionation between pyrite and dissolved Fe under hydrothermal conditions
Formation waters from Cambrian-age strata, Illinois Basin, USA: Constraints on their origin and evolution
CO2-induced shift in microbial activity affects carbon trapping and water quality in anoxic bioreactors
Ca, Sr, O and D isotope approach to defining the chemical evolution of hydrothermal fluids: Example from Long Valley, CA, USA
Sequestration of atmospheric CO2 in a weathering-derived, serpentinite-hosted magnesite deposit: 14C tracing of carbon sources and age constraints for a refined genetic model
New in G-Cubed
Geothermobarometry of basaltic glasses from the Tamu Massif, Shatsky Rise oceanic plateau
The effect of chemical pretreatment of sediment upon foraminiferal-based proxies
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
Nanometer-scale characterization of microscopic pores in shale kerogen by image analysis and pore-scale modeling
[open access] Sulfur degassing at Erta Ale (Ethiopia) and Masaya (Nicaragua) volcanoes: Implications for degassing processes and oxygen fugacities of basaltic systems
'Green Chemistry for Life' research grants
UNESCO and Russia-based corporate sponsor, PhosAgro, invite scientists aged 35 years or less to compete for grants of up to US $30,000 each to implement innovative projects that respect the 12 principles of "green chemistry". The successful projects will be selected by an international scientific jury. Green chemistry has become a target for cutting-edge research into sustainable technologies that eliminate or reduce the generation or use of hazardous substances in mining and in the design, manufacture and application of chemical products. Projects may encompass biochemistry, geochemistry, biotechnology and applied microbiology, giving young scientists ample opportunity to demonstrate their inventiveness. The application deadline is Feb. 28, 2014. For more information visit the program page.
What is the secret to water on Mars?
The Christian Science Monitor via Alaska Dispatch
Mars has valleys deeper than the Grand Canyon, braided river channels, and a level seashore reaching around the northern third of the planet. These signs point to water – a lot of water – in Mars's early history. But it's too cold for liquid water now, so how could Mars have had rivers and oceans 3.8 billion years ago, back when the sun was colder and dimmer?
Ancient minerals: Which gave rise to life?
Life originated as a result of natural processes that exploited early Earth's raw materials. Scientific models of life's origins almost always look to minerals for such essential tasks as the synthesis of life's molecular building blocks or the supply of metabolic energy. But this assumes that the mineral species found on Earth today are much the same as they were during Earth's first 550 million years — the Hadean Eon — when life emerged. A new analysis of Hadean mineralogy challenges that assumption.
Archaeologists map Neolithic monument complex at Damerham, near Stonehenge
A team of archaeologists from London's Kingston University has mapped a prehistoric temple complex at a Neolithic site near the village of Damerham – located about 15 miles from the iconic Stonehenge – and discovered a sink hole of material that may hold information about plants that thrived there 6,000 years ago.
Scientists explore New Zealand's deep sea
The JAMSTEC research vessel RV Yokosuka sailed from Nuku'alofa in Tonga this morning, heading towards New Zealand to explore the animal life on deep undersea mountains, or seamounts. A team of 14 scientists from Japan and New Zealand, 41 ships officers and crew are on board.
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Lesley Warren, and Helen Williams
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