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Tropical caves fill gap in climate record
The Weather Channel
Slick towers in a tropical island cave provide a 100,000-year climate record rivaling Greenland's pristine ice cores, scientists say. The rare view into past rainfall patterns in the tropics fills a gap in global climate history during a crucial period. Ice cores in Greenland and Antarctica have revealed rapid swings in Earth's climate in the last 100,000 years in the high latitudes.
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Looking for similar articles? Search here, keyword CLIMATE CHANGE.


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SOCIETY NEWS


Goldschmidt2013: Early Registration Deadline
GS
June 25, 2013 is the last day to register at the early rate, to book workshops, and to book low-cost accommodations for the highly anticipated Goldschmidt conference in Florence. The EAG and the conference organizers have put together this short video. Remember too, members of GS, EAG and GSJ get a discounted rate on registration. Current GS members may use their email address to retrieve their member number.
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Goldschmidt2013: Community Forum
GS
As a follow-up of the workshop 'Recent Changes in the Biogeochemistry of the Great Lakes System (BOGLS)' held this past March in Detroit, MI, USA, a community forum will be held at the Goldschmidt2013 conference on Tuesday, Aug. 27 from 12:30-1:30p.m. We will discuss the outcome of the workshop and seek community feedback. All Goldschmidt attendees are welcome to attend this forum. Forum hosts are Mark Baskaran (Wayne State University) and Greg Dick (University of Michigan).
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Elements: 50 issues later
GS
The June 2013 issue of Elements marks the completion of 50 thematic issues. Thanks to the principal editors, guest editors, authors and society news editors who have contributed to Elements since the idea for a multi-society magazine was first put forward by Rod Ewing. Thanks to the readers for subscribing, and citing Elements in your papers. Since its first issue in January 2005, circulation has grown from 8,000 subscribers to more than 16,000 subscribers per issue and the number of Participating Societies has grown as well, from the five founding societies to 17 societies and 3 affiliated societies. Elements 5-year impact factor sits at a very respectable 3.85.

As we take this moment to look back, we also want to look ahead. You can help us by completing this simple 7-question survey. Responses are anonymous and will be collected through June 28, 2013.

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Geochemical Career Center
GS

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




PhD in Experimental Geochemistry





Research Associate in Isotope Geochemistry (GFZ Potsdam, Potsdam, Germany)




Final Days! Postdoctoral Research Associate - Geochemistry & Interfacial Sciences (Oak Ridge National Laboratory, Oak Ridge, TN, USA)


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

Employers: All jobs posted in the Geochemical Career Center are cross-promoted through our Facebook page and right here in Geochemical News. Through June 28, take 20 percent off all GCC packages.

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New in GCA (v.114, 01 August 2013)
GS
Direct dating of tin–tungsten mineralization of the Piaotang tungsten deposit, South China, by 40Ar/39Ar progressive crushing

Metal–silicate partitioning of Pb and U: Effects of metal composition and oxygen fugacity

The origin and migration of mud volcano fluids in Taiwan: Evidence from hydrogen, oxygen, and strontium isotopic compositions

Solubility of CH4 in a synthetic basaltic melt, with applications to atmosphere–magma ocean–core partitioning of volatiles and to the evolution of the Martian atmosphere

Timescales of texture development in a cooling lava dome

A wind tunnel experiment to explore the feasibility of using beryllium-7 measurements to estimate soil loss by wind erosion

Ab initio study of structurally bound water at cation vacancy sites in Fe- and Al-oxyhydroxide materials

The geochemical consequences of mixing melts from a heterogeneous mantle

Biotransformation of lepidocrocite in the presence of quinones and flavins

In situ and time resolved nucleation and growth of silica nanoparticles forming under simulated geothermal conditions

Biogeochemistry of stable Ca and radiogenic Sr isotopes in a larch-covered permafrost-dominated watershed of Central Siberia

Kinetics of Mg partition and Mg stable isotope fractionation during its incorporation in calcite

Molybdenum geochemistry in a seasonally dysoxic Mo-limited lacustrine ecosystem

Effect of carbon, sulfur and silicon on iron melting at high pressure: Implications for composition and evolution of the planetary terrestrial cores

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New in GGG (v.14, April 2013)
GS
Geochemistry, Geophysics, Geosystems is an online journal published by AGU and sponsored by the Geochemical Society. We are pleased to be able to add G-cubed titles as a feature here in Geochemical News.

Temporal trends in vent fluid iron and sulfide chemistry following the 2005/2006 eruption at East Pacific Rise, 9°50'N

Re-evaluating genetic models for porphyry Mo mineralization at Questa, New Mexico: Implications for ore deposition following silicic ignimbrite eruption

Depths and temperatures of <10.5 Ma mantle melting and the lithosphere-asthenosphere boundary below southern Oregon and northern California

Structures of the oceanic lithosphere-asthenosphere boundary: Mineral-physics modeling and seismological signatures

Refining benthic foraminiferal Mg/Ca-temperature calibrations using core-tops from the western tropical Atlantic: Implication for paleotemperature estimation

Seasonal moisture sources and the isotopic composition of precipitation, rivers, and carbonates across the Andes at 32.5–35.5°S

Mantle composition controls the development of an Oceanic Core Complex

A core-top study of dissolution effect on B/Ca in Globigerinoides sacculifer from the tropical Atlantic: Potential bias for paleo-reconstruction of seawater carbonate chemistry

Early Aptian paleoenvironmental evolution of the Bab Basin at the southern Neo-Tethys margin: Response to global carbon-cycle perturbations across Ocean Anoxic Event 1a

Confounding effects of coral growth and high SST variability on skeletal Sr/Ca: Implications for coral paleothermometry

Unmixing of stable isotope signals using single specimen δ18O analyses

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LATEST NEWS


Yosemite's iconic El Capitan mapped in high-res 3-D
National Geographic
While many graduate students spend days in a lab or in front of a computer, Roger Putnam, a master's candidate at the University of North Carolina, spent up to three days at a time on the sheer face of a cliff, suspended thousands of feet above the ground.
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Graphite formation by carbonate reduction during subduction
Nature
Carbon is transported from Earth's surface into its interior at subduction zones. Carbonates in sediments overlying hydrothermally altered rocks (including serpentinites) within the subducted slab are the main carriers of this carbon. Part of the carbon is recycled back to the surface by volcanism, but some is transferred to the deep Earth.
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Testing artificial photosynthesis: Fully integrated microfluidic test-bed for solar-driven electrochemical energy conversion systems
ScienceDaily
With the daily mean concentrations of atmospheric carbon dioxide having reached 400 parts-per-million for the first time in human history, the need for carbon-neutral alternatives to fossil fuel energy has never been more compelling. With enough energy in one hour's worth of global sunlight to meet all human needs for a year, solar technologies are an ideal solution. However, a major challenge is to develop efficient ways to convert solar energy into electrochemical energy on a massive-scale. A key to meeting this challenge may lie in the ability to test such energy conversion schemes on the micro-scale.
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Study: 'Self-cleaning' pollution-control technology could do more harm than good
ScienceDaily
Research by Indiana University environmental scientists shows that air-pollution-removal technology used in "self-cleaning" paints and building surfaces may actually cause more problems than they solve. The study finds that titanium dioxide coatings, seen as promising for their role in breaking down airborne pollutants on contact, are likely in real-world conditions to convert abundant ammonia to nitrogen oxide, the key precursor of harmful ozone pollution.
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    Research on rare Earth elements in Alaska could help make them less rare (U.S. Geological Survey)
Iron in Egyptian relics came from space (Scientific American)
Tropical caves fill gap in climate record (The Weahter Channel)
Alpine lakes reflect climate change (ScienceDaily)

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


 

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