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Same forces as today caused climate changes 1.4 billion years ago
University of Southern Denmark
Fluctuating climate is a hallmark of Earth, and the present greenhouse effect is far from the only force affecting today's climate. On a larger scale the Earth's climate is also strongly affected by how the Earth orbits around the sun; this is called orbital forcing of climate change. These changes happen over thousands of years and they bring ice ages and warming periods.
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SOCIETY NEWS


MAP application deadline March 31
GS
The Geochemical Society's Meeting Assistance Program (MAP) annually allocates up to five sponsorships of up to $2,000 (USD) each for support of geochemistry sessions/symposia at any scientific conference of geochemical relevance. Deadlines for applications are March 31 and Sept. 30 of each year. For more information and application instructions please visit our MAP webpage.
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PRODUCT SHOWCASE
  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 Pittcon 2015 in New Orleans, Booth 842.
 


New in GCA (v.152, 1 March 2015)
GS
High spatial resolution geochemistry and textural characteristics of 'microtektite' glass spherules in proximal Cretaceous–Paleogene sections: Insights into glass alteration patterns and precursor melt lithologies

Neptunium redox speciation at the illite surface

Stable isotope ratios of nonexchangeable hydrogen in organic matter of soils and plants along a 2100-km climosequence in Argentina: New insights into soil organic matter sources and transformations?

The origin, composition, and reactivity of dissolved iron(III) complexes in coastal organic- and iron-rich sediments

Petrogenesis of Late Cenozoic basalts from North Hainan Island: Constraints from melt inclusions and their host olivines

The geochemical fingerprint of microbial long-distance electron transport in the seafloor


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  Harry Hess Postdoctoral Research Associate in Geosciences

The Department of Geosciences at Princeton University is accepting applications for a Postdoctoral Research Associate
 


Conference Calendar March deadlines
GS
Registration Deadlines
April 1: 9th International Conference on the Analysis of Geological and Environmental Materials (Austria)
April 1: Society of Economic Geologists (SEG) 2015 Conference: World-Class Ore Deposits: Discovery to Recovery (Australia)
April 2: 2015 Goldschmidt Conference (Czech Republic)
April 15: ICAM 2015 International Congress on Applied Mineralogy (Turkey)
April 24: Granulites and Granulites 2015 (Namibia)
April 30: 8th Hutton Symposium on Granites and Related Rocks (Brazil)

Registration Deadlines
April 8: 2015 Joint Assembly (Canada)
April 10: XXVI General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Czech Republic)
April 14: ECROFI23 - The Sorby Conference on Fluid and Melt Inclusions (United Kingdom)
April 15: ICAM 2015 (International Congress on Applied Mineralogy (Turkey)
April 15: The Institute on Lake Superior Geology 2015 Annual Meeting (Canada)
April 15: 6th International Limnogeology Congress (ILIC6) (USA)
April 15: International Symposium on Zeolites and MicroPorous Crystals (Japan)
April 23: 29th Meeting of European Crystallographic Association (ECM29) (Croatia)

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GEOCHEMISTRY IN THE NEWS


Saturn moon's ocean may have hydrothermal activity
University of Colorado Boulder
Scientists with NASA's Cassini mission, led by LASP and University of Colorado postdoctoral researcher, Sean Hsu, have found that microscopic grains of rock detected near Saturn imply hydrothermal activity is taking place within the moon Enceladus.
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Violent collisions during Earth's formation led to metal rains
Science Alert
Earth is believed to have formed about 4.6 billion years ago, growing in size as a result of frequent collisions with asteroids. These collisions are thought to have initially happened at slow speeds, and became progressively faster as the planet grew in size. One especially large impact is thought to be responsible for the formation of our Moon.
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No limit to life in sediment of ocean's deadest region
University of Rhode Island via ScienceDaily
Scientists have found oxygen and oxygen-breathing microbes all the way through the sediment from the seafloor to the igneous basement at seven sites in the South Pacific gyre, considered the "deadest" location in the ocean.
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    New detector sniffs out origins of methane (MIT News Office)
Double the trouble found under Hawaii's Kilauea volcano (Live Science)

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


 

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