This message contains images. If you don't see images, click here to view.
Advertise in this news brief.

Text Version   RSS   Subscribe   Unsubscribe   Archive   Media Kit November 11, 2014

Home   Join   Goldschmidt 2015   Career Center   GN Archive


New study finds oceans arrived early to Earth
Woods Hole Oceanographic Institute
Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet's surface and are home to the world's greatest diversity of life. While water is essential for life on the planet, the answers to two key questions have eluded us: where did Earth's water come from and when?
Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article


Geochemical Career Center

Faculty Position in Environmental Chemistry and Engineering (Pontificia Universidad Coatolica de Chile, Santiago, Chile)

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

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

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

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, Dallas, TX, USA)

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, CA USA)

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

Final Days! Research Associate (Macquarie University, Sydney, Australia)

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.

Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article

  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.

Miss an issue of Geochemical News? Click here to visit Geochemical News archive page.

New in GCA (v.143, 15 OCTOBER 2014)
Common Pb isotope mapping of UHP metamorphic zones in Dabie orogen, Central China: Implication for Pb isotopic structure of subducted continental crust

First-principles investigations of equilibrium calcium isotope fractionation between clinopyroxene and Ca-doped orthopyroxene

Geochemistry of primary-carbonate bearing K-rich igneous rocks in the Awulale Mountains, western Tianshan: Implications for carbon-recycling in subduction zone

Behaviour of geophysical subducted water and its role in magma genesis in the NE Japan arc: A combined and geochemical approach

Origin of carbonatites in the South Qinling orogen: Implications for crustal recycling and timing of collision between the South and North China Blocks

Postcollisional potassic and ultrapotassic rocks in southern Tibet: Mantle and crustal origins in response to India–Asia collision and convergence

Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article


Low oxygen level prolonged evolution of animals on Earth
Tech Times
While genetic and ecological innovation are attributed with the rise of animals, there is also evidence that animal life would not have flourished if a sufficient level of oxygen had not been present. Animals first appeared around 600 to 700 million years ago. Scientists learned that for those billions of years before this period, the oxygen levels measured at only 0.1 percent of today's level.
Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article

Is there a new threat to the ozone layer?
After the alarm was raised in the 1980s, the ozone layer, which up to then had been destroyed by industrial activity, began to improve slightly. However, on the initiative of Emmanuel Mahieu, a researcher at the University of Liege, an international team observed that between 2007 and 2011, the trend of chlorine – the main destructive element affecting the ozone layer – had reversed, showing an increase in the Northern Hemisphere.
Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article

Increase in ozone-destroying substances, but Montreal Protocol on track
University of Leeds via ScienceDaily
Scientists have shown a recent increase in atmospheric hydrogen chloride, a substance linked to destruction of the ozone layer.
Share this article:   Share on FacebookTwitterShare on LinkedinE-mail article

Missed last week's issue? See which articles your colleagues read most.

    BP spill left big oily 'bathtub ring' on seafloor (Sci-Tech Today)
Low oxygen 'delayed animal life on Earth' (BBC)
Goldschmidt2015: Call for Sessions (GS)

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


Geochemical News
Geochemical Society Content Editors: James Brenan, Li-Hung Lin,
Lesley Warren, and Helen Williams   
Contribute news

For MultiBriefs:
Colby Horton, Vice President of Publishing, 469.420.2601
Download media kit

Tammy Gibson, Content Editor, 469.420.2677   
Contribute news

This edition of Geochemical News was sent to ##Email##. To unsubscribe, click here. Did someone forward this edition to you? Subscribe here -- it's free!
Recent Issues
Nov. 4, 2014
Oct. 28, 2014
Oct. 21, 2014
Oct. 14, 2014

7701 Las Colinas Ridge, Ste. 800, Irving, TX 75063