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BP spill left big oily 'bathtub ring' on seafloor
Sci-Tech Today
The BP oil spill left an oily "bathtub ring" on the sea floor that's about the size of Rhode Island, new research shows. The study by David Valentine, the chief scientist on the federal damage assessment research ships, estimates that about 10 million gallons of oil coagulated on the floor of the Gulf of Mexico around the damaged Deepwater Horizons oil rig.
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Goldschmidt2015: Call for Sessions
Deadline: Monday, Dec. 15
Goldschmidt2015 will be the 25th Goldschmidt conferences, and to celebrate we are returning to beautiful Prague, the same venue as Goldschmidt2011. The Goldschmidt conference is the most important forum for the discussion of recent results in geochemistry and related fields. The science committee has identified the key theme areas, and the theme convenors have proposed a range of sessions in each theme. Now the whole community is invited to view the sessions already proposed, and make suggestions for further sessions.

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  Analab Corrosion Resistant Laboratory Appliances

Analab manufacture corrosion resistant laboratory appliances such as acid vapour cleaning stations, hotplates, and sample preparation devices. Our devices can be used with a wide range of acids and bases (HF to NH4OH). We are represented in North America by Isomass Scientific.

Please visit us at GSA 2014 in Vancouver, Booth 1018.

Goldschmidt2015: Call for workshops, short courses and town hall meetings
Deadline: Monday, Dec. 15
Workshops are a great opportunity to teach valuable skills or share new techniques, and over 400 delegates are expected to participate in workshops during the weekend before Goldschmidt2015. The Goldschmidt conferences are one of the best annual opportunities to reach the community and the conference office will manage the provision of rooms, audiovisual equipment, catering, delegate bookings and payments: all workshop organizers need to do is publicize their workshop and prepare their materials.

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Geochemical Career Center

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

New! Post Doctoral Appointee (Indiana University, Bloomington, IN, USA)

New! Assistant Professor in Water Science, The University of Texas at Austin (Austin, TX, USA)

New! Faculty Position in Environmental Chemistry and Engineering (Pontificia Universidad Catolica de Chile, Santiago, Chile)

Postdoctoral Research Assistant in Geochemistry (University of Oxford, Oxford, United Kingdom)

Postdoctoral Research Associate in Aquatic Biogeochemistry (University of Florida, Gainesville, FL, USA)

Postdoctoral Appointee (Argonne National Laboratory, Lemont, IL, USA)

Tenure-Track Assistant Professor of Hydrogeology (Georgia State University, Atlanta, GA, USA)

Faculty Positions in Geophysical Sciences (University of Chicago, Chicago, IL, USA)

Hamilton Professor of Earth Sciences (Southern Methodist University)

Assistant Professor SIMS (The University of Western Australia, Crawley, Australia)

Senior Research Officer SIMS (The University of Western Australia, Crawley, Australia)

Assistant Professor/Associate Professor/Professor SIMS (The University of Western Australia, Crawley, Australia)

Postdoctoral Research Associate (Gemological Institute of America, Carlsbad/New York, CA USA)

CPS Postdoctoral Fellowships in Planetary/ Exoplanet Science (University of Toronto, Toronto, Canada)

Research Associate (Macquarie University, Sydney, Australia)

Inductively Coupled Plasma Mass Spectroscopist/Engineeer (Aarhus University, Aarhus, Denmark)

Assistant Professor of Earth and Planetary Sciences (Washington University in St. Louis, Saint Louis, MO, USA)

Tenure-Track Faculty Position in Chemistry of Earth Materials (University of Southern California, Los Angeles, CA, 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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New in GCA (v.143, 15 Oct 2014)
The Subduction Factory: Geochemical perspectives

Modeling the compositional evolution of recharging, evacuating, and fractionating (REFC) magma chambers: Implications for differentiation of arc magmas

Accumulation of 'anti-continent' at the base of the mantle and its recycling in mantle plumes

Magnesium isotopic systematics of mafic rocks during continental subduction

Recycled oceanic crust in the source of 90–40 Ma basalts in North and Northeast China: Evidence, provenance and significance

Diamond formation by carbon saturation in C–O–H fluids during cold subduction of oceanic lithosphere

U–Pb ages and trace elements of metamorphic rutile from ultrahigh-pressure quartzite in the Sulu orogen

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New in G-Cubed (v.15, issue 9)
[OA] Coring disturbances in IODP piston cores with implications for offshore record of volcanic events and the Missoula megafloods

Identification and environmental interpretation of diagenetic and biogenic greigite in sediments: A lesson from the Messinian Black Sea

[OA] Source-related variables for the description of the oceanic carbon system

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Low oxygen 'delayed animal life on Earth'
There's been much debate about why animals took so long to evolve and thrive on Earth. Now scientists say it was due to incredibly low levels of oxygen on Earth more than a billion years ago. A team determined the chemical composition of ancient rocks to find there was about 0.1 percent of the oxygen levels present compared with today. The researchers present their work in Science journal. Why complex life took so long to appear on the scene has puzzled scientists for many years. It was only over 500 million years ago that life on Earth began to flourish in a period known as the Cambrian explosion.
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Missed last week's issue? See which articles your colleagues read most.

    Carbonate rocks are unrecognized methane sink (Oregon State University)
Scientists find ancient mountains that fed early life (Australian National University via ScienceDaily)

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


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