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Origins of life on Earth may help hunt for life on other planets
redOrbit
Tracing the origins of life isn't only central to understanding our own history, it can also be important for discovering life on other planets. Two recently published papers — "Beating the acetyl coenzyme A-pathway to the origin of life" and "The inevitable journey to being" — in the Philosophical Transactions of the Royal Society B add supporting details to the theory life on Earth began near hydrothermal vents in the ocean floor.
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SOCIETY NEWS


Goldschmidt2013: Wednesday's Plenary and Clarke Award
GS
PLENARY. Wednesday's Goldschmidt2013 plenary speaker is Paolo Gasparini (Professor Emeritus at the University of Napoli Federico II). His talk: Natural Hazards and Scientific Advice, will be presented at 1:15 p.m. in Palazzo dei Congressi on Wed., Aug. 28.

CLARKE. Dr. Blair Schoene (Princeton University) shall be awarded the 2013 F.W. Clarke Medal on Wednesday at 9 a.m. before his talk From Date to Process: Integrating Geochemistry and Geochronology on Very Short and Very Long Timescales.

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PRODUCT SHOWCASE
  EarthChem Portal: Access Multiple Databases

Visualize and dynamically map geochemical data with the IEDA EarthChem Portal. The Portal offers a "one-stop-shop" for geochemistry data of the solid earth with access to complete data from multiple data systems. Get integrated search results from the federated databases PetDB, SedDB, GEOROC, NavDat, USGS, and GANSEKI. Visit EarthChem Portal!

 


GSA and Fall AGU Abstract Deadlines are Today
GS
The abstract deadlines for the AGU Fall Meeting and the GSA Annual Meeting are today (Aug. 6). At the GSA meeting, the Geochemical Society will again be sponsoring a reception with MSA and the GSA-MGPV division, sponsoring the F. Earl Ingerson Lecturer, and welcoming attendees to our exhibit booth. At the AGU, the Geochemical Society is a sponsor of the VGP reception and will also have an exhibit. Please stop by and say "Hi" to your "G" companions at both GSA and AGU.
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Geochemical Career Center
GS


Geochemistry and Habitability of Ancient Waters: Postdoctoral Position Available (University of Toronto, Toronto, ON, Canada)


Associate Isotope Geochemist or Isotop Geochemist (depending on qualifications) (Illinois State Geological Survey, Urbana-Champaign, IL, USA)



Research Lab Specialist (electron microscopy, Auger nanoscope, XRD) (University of Michigan, Ann Arbor, MI, USA)



Harry S. Truman Fellowship in National Security Science and Engineering (Sandia National Laboratories, Albuquerque, NM, USA)




Microprobe Lab Manager (Ruhr Universitaet Bochum, Bochum, Germany)




Tenure Track Position in Stable Isotope Geochemistry (Temple University, Philadelphia, PA, 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.117, 15 September 2013)
GS
Effects of Fe doping on the structures and properties of hexagonal birnessites – Comparison with Co and Ni doping

Distribution and stable isotopes of plant wax derived n-alkanes in lacustrine, fluvial and marine surface sediments along an Eastern Italian transect and their potential to reconstruct the hydrological cycle

Dissolved strontium in the subterranean estuary – Implications for the marine strontium isotope budget

In situ ATR-FTIR spectroscopic analysis of the co-adsorption of orthophosphate and Cd(II) onto hematite

Textures and isotopic compositions of carbonaceous materials in A and B-type Stardust tracks: Track 130 (Bidi), track 141 (Coki) and track 80 (Tule)

Fe-carbide and Fe-sulfide liquid immiscibility in IAB meteorite, Campo del Cielo: Implications for iron meteorite chemistry and planetesimal core compositions

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New in G-Cubed
GS
Petrological Constraints on Melt Generation Beneath the Asal Rift (Djibouti) using Quaternary basalts

Major and trace element composition of the high 3He/4He mantle: Implications for the composition of a non-chonditic Earth

Sr-Nd-Hf-Pb isotope and trace element evidence for the origin of alkalic basalts in the Garibaldi Belt, northern Cascade arc

Quantifying and understanding the uncertainty of atmospheric CO2 concentrations determined from calcic paleosols

Quaternary channels within the Northeast German Basin and their relevance on Double Diffusive Convective transport processes: Constraints from 3D thermohaline numerical simulations

Simplified mantle architecture and distribution of radiogenic power

Mineralogical assemblages forming at hyper-alkaline warm springs hosted on ultramafic rocks: A case study of Oman and Ligurian ophiolites

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LATEST NEWS


Geologists solve martian meteorite-age puzzle
Farsnews
A team of geologists proved that the most common group of meteorites from Mars is almost 4 billion years younger than many scientists had believed, resolving a long-standing puzzle in Martian science and painting a much clearer picture of the red planet's evolution that can now be compared to that of habitable Earth.
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Gibraltar might be the beginning of the end for the Atlantic Ocean
Ars Technica
Plate tectonics has its own version of the circle of life. Outlined by geologist J. Tuzo Wilson, the Wilson Cycle describes the birth and death of the ocean basins that separate continents. Continental plates rift apart along a volcanically active boundary that will eventually become the mid-ocean ridge. New oceanic crust is continuously formed at the ridge as the plates drift farther apart, forming a growing ocean basin. At some point, however, the growth stops and the oceanic crust begins to be subducted back beneath the continental plates. This continues until the continents meet.
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Lowest sea level ever
Discovery News
Most people are more concerned with sea level rise these days, but there have been times when the oceans dropped to alarmingly low levels. A new study calculates that the worst of those icy, low sea periods — what was called snowball Earth — saw the oceans drop more than 1,700 feet. Nor is that number easy to come by. It turns out that a lot of tricky things come into play when you start shuffling around oceans and ice sheets.
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Greenland icebergs may have triggered big freeze
Discovery News
In a warming world, what could cause temperatures to suddenly plummet across the Northern Hemisphere? Scientists have tried to answer this question for decades, ever since they discovered geological and biological evidence for the "Big Freeze."
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TRENDING ARTICLES
Missed last week's issue? See which articles your colleagues read most.

    What lurks beneath the Central Andes? (Wired)
Isotopes of Disease (Goldschmidt)
Newly discovered flux in the Earth may solve missing-mantle mystery (MIT News via Space Daily)

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


 

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