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Alaska volcano blanketed Europe with ash 1,200 years ago
Alaska's Mount Churchill volcano erupted some 1,200 years ago, spreading ash from Canada to Germany. The incredible reach resembles a high-school hitter powering past Babe Ruth's prodigious home run records.
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GS at GSA-Vancouver
Dr. Robert Hazen (Carnegie Institution of Washington) will present the 2014 F. Earl Ingerson Lecture. His talk, "Chance and Necessity in the Mineral Evolution of Terrestrial Planets," will be presented on Monday, Oct. 20 at 1 p.m. in VCC-West Room 205/206. The Geochemical Society will again be sponsoring a ticketed reception with MSA and the GSA-MGPV Division, on Tuesday, Oct. 21, at 5:45 p.m. in VCC-West North Foyer Level 2, as well as welcoming attendees to our exhibit booth (booth 1226).
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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.

ELEMENTS: Cosmogenic Nuclides
Cosmogenic Nuclides, the October issue of Elements (volume 10, issue 5) illustrates a frontier area that is fast moving thanks to improvements in analytical instrumentation. It is interesting to see that theoretical developments in particle physics have found applications in our effort to understand today's landscapes. Guest editors Friedhelm von Blanckenburg and Jane Willenbring, together with the cast of authors they assembled, chose to illustrate how cosmogenic nuclides can help us understand Earth-surface processes. And the Toolkit article shows off the technological prowess needed to measure these rare nuclides—one atom in a million billion.

Current Geochemical Society members can access this issue now via the Elements online archive using your email address (UserID) and member number (Password).

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Geochemical Career Center

New! Postdoctoral Research Assistant in Geochemistry (University of Oxford, Oxford, UK)

New! 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)

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)

Postdoctoral Research Associate – Geochemistry (Oak Ridge National Laboratory, Oak Ridge, TN, 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.142, 1 OCTOBER 2014)
Tracing silicon cycling in the Okavango Delta, a sub-tropical flood-pulse wetland using silicon isotopes

The iron isotope composition of enstatite meteorites: Implications for their origin and the metal/sulfide Fe isotopic fractionation factor

Competing retention pathways of uranium upon reaction with Fe(II)

Diffusion kinetics of 3He and 21Ne in quartz and implications for cosmogenic noble gas paleothermometry

Cobalt incorporation in calcite: Thermochemistry of (Ca,Co)CO3 solid solutions from density functional theory simulations

The formation of the dolomite-analogue norsethite: Reaction pathway and cation ordering

Impact delivery of organic matter on the acapulcoite–lodranite parent-body deduced from C, N isotopes and nanostructures of carbon phases in Acapulco and Lodran

Olivine in terminal particles of Stardust aerogel tracks and analogous grains in chondrite matrix

The CO2 consumption potential during gray shale weathering: Insights from the evolution of carbon isotopes in the Susquehanna Shale Hills critical zone observatory

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Conference Calendar November deadlines
Registration Deadlines
Nov. 14: AGU Fall Meeting (USA)

Conference organizers — be sure to add your conference to our conference calendar.

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Cave paintings in Indonesia redraw picture of earliest art
National Geographic
Cave paintings on the Indonesian island of Sulawesi were found more than 50 years ago, but until now the dates of origin were not known. The art shown here has not been dated, but is stylistically similar to other art in the area now found to be around 40,000 years old.
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Study: Air pollution increases river flows
University of Exeter via ScienceDaily
Air pollution has had a significant impact on the amount of water flowing through many rivers in the northern hemisphere, a new study shows. The paper shows how such pollution, known as aerosols, can have an impact on the natural environment and highlights the importance of considering these factors in assessments of future climate change.
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True origin of the man in the moon
New data obtained by NASA's GRAIL mission reveals that the Procellarum region on the near side of the moon — a giant basin often referred to as the "man in the moon" — likely arose not from a massive asteroid strike, but from a large plume of magma deep within the moon's interior.
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Antarctic sea ice reaches new record maximum
Sea ice surrounding Antarctica reached a new record high extent this year, covering more of the southern oceans than it has since scientists began a long-term satellite record to map the extent in the late 1970s.
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Missed last week's issue? See which articles your colleagues read most.

    Signs in groundwater may help predict earthquakes 6 months in advance (The Guardian)
Earth's water is older than the sun: Likely originated as ices that formed in interstellar space (Carnegie Institution via ScienceDaily)
Effect of ocean acidification: Coral growth rate on Great Barrier Reef plummets in 30-year comparison (Carnegie Institution via ScienceDaily)

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


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