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Coral skeletons record changes in ocean temps
Caltech via Futurity
Just as growth rings from trees offer clues to past climate change, corals can do the same for changes in the ocean. Scientists know that ice sheets wax and wane as the concentration of CO2 decreases and increases in the atmosphere. Researchers believe that the deep ocean — which stores 60 times more inorganic sources of carbon than is found in the atmosphere — must play a vital role in this shift.
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Final week for GCA-Vancouver abstracts
Abstract Submissions for the 2014 GSA Annual Meeting in Vancouver, BC, Canada, are open through July 29. Thanks to strong volunteer support, there are 37 sessions sponsored or co-sponsored by Geochemical Society. GS will again be organizing the F. Earl Ingerson Lecture, sponsoring a reception with MSA and the GSA-MGPV division, and welcome attendees to our exhibit (Booth 1226).
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  SESAR: Create Your Sample database

Do you work with samples of rocks, minerals, soils, water, etc.? SESAR can help you organize your sample metadata and ensure that your samples can be unambiguously cited, linked to data and publications via use of the IGSN (International Geo Sample Number), and become part of a global sample catalog.

Geochemical Career Center

New! Associate Environmental Geoscientist (Illinois State Geological Survey, Champaign, IL, USA)

New! Senior Staff Associate (Lamont-Doherty Earth Observatory of Columbia University of Columbia University, Palisades, NY, USA)

New! Lectureship in Earth Sciences (University of St. Andrews, St. Andrews, UK)

Faculty Position in Geology (Johns Hopkins University, Baltimore, MD, USA)

Faculty Position in Climate Change and Water Cycle (University of Michigan, Ann Arbor, USA)

Assistant Professor of Geochemistry (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.

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  EarthChem IEDA Data Management tool

The EarthChem IEDA Data Management Plan (DMP) Tool provides an easy way to capture all relevant and required information and generate a well-formatted PDF for inclusion in NSF proposals. Users can also link DMPs with NSF awards to facilitate Data Compliance Reporting (DCR) through the IEDA DCR Tool.

New in GCA (v.139, 15 August 2014)
Coordinated NanoSIMS and FIB-TEM analyses of organic matter and associated matrix materials in CR3 chondrites

Isotopic constraints on the nature and circulation of deep mantle C–H–O–N fluids: Carbon and nitrogen systematics within ultra-deep diamonds from Kankan (Guinea)

[open access] Composition of hydrothermal fluids and mineralogy of associated chimney material on the East Scotia Ridge back-arc spreading centre

Site-specific 15N isotopic signatures of abiotically produced N2O

Compositions, geochemistry, and shock histories of recrystallized LL chondrites

Bitumen II from the Paleoproterozoic Here's Your Chance Pb/Zn/Ag deposit: Implications for the analysis of depositional environment and thermal maturity of hydrothermally-altered sediments

Fluoride–silicate melt immiscibility and its role in REE ore formation: Evidence from the Strange Lake rare metal deposit, Québec-Labrador, Canada

Amoeboid olivine aggregates from CH carbonaceous chondrites

Experimental determination of plagioclase dissolution rates as a function of its composition and pH at 22 °C

Triple oxygen isotope variations in sedimentary rocks

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New in G-Cubed (v.15, issue 5)
Geochemistry of volcanic glasses from the Louisville Seamount Trail (IODP Expedition 330): Implications for eruption environments and mantle melting

Geochemical evidence for active tropical serpentinization in the Santa Elena Ophiolite, Costa Rica: An analog of a humid early Earth?

A novel framework for quantifying past methane recycling by Sphagnum-methanotroph symbiosis using carbon and hydrogen isotope ratios of leaf wax biomarkers

Large volume submarine ignimbrites in the Shikoku Basin: An example for explosive volcanism in the Western Pacific during the Late Miocene

Lithospheric architecture of the Slave craton, northwest Canada, as determined from an interdisciplinary 3-D model

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Earth-like soils on Mars? Ancient fossilized soils potentially found deep inside impact crater suggest microbial life
University of Oregon via ScienceDaily
Soil deep in a crater dating to some 3.7 billion years ago contains evidence that Mars was once much warmer and wetter, says a geologist based on images and data captured by the rover Curiosity.
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Want to simulate the high pressure of the Earth's crust? You have to go nuclear
University of California - Davis via Science 2.0
A new pressure cell makes it possible to simulate chemical reactions deep in the Earth's crust. The cell allows researchers to perform nuclear magnetic resonance measurements on as little as 10 microliters of liquid at pressures up to 20 kiloBar. The new device allows researchers for the first time to study chemical reactions in liquid water under pressure, without it freezing into a solid.
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Missed last week's issue? See which articles your colleagues read most.

    Caltech-led team develops a geothermometer for methane formation (Caltech)
Fracking flowback could pollute groundwater with heavy metals (Cornell University via ScienceDaily)
New tunable laser spectrometer measures rare methane isotopologues (Deep Carbon Observatory)
Ancient ocean currents may have changed pace and intensity of ice ages (National Science Foundation)

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


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