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Mineralogical Association Canada

Check our latest publications from our short-course volumes, special publications or Canadian Mineralogist thematic issues



 

New project aims to drill to the Earth's mantle, 3.7 miles down
The Smithsonian    Share    Share on FacebookTwitterShare on LinkedinE-mail article
One of the strangest facets of modern exploration is that we now have more experience with the surface of Mars than the layer of earth not too far beneath our feet. Nearly everything we know about the mantle — the 1,800-mile-thick semi-molten layer of the planet below the crust — comes indirectly: from computer simulations, mantle-derived rocks that made their way to the surface and observation of earthquake waves that move through the mantle. More





 Society News


Terry Plank wins MacArthur Fellowship
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Geochemical Society member Terry A. Plank, Professor of geochemistry at Lamont-Doherty Earth Observatory was a recipient of one the 23 MacArthur Fellowships awarded in 2012. Terry, best known for her many contributions to the understanding of the geochemistry of convergent margin volcanism was cited for her probes into "the usually invisible but remarkably powerful thermal and chemical forces deep below the Earth's crust that drive the motion of tectonic plate collisions." "The MacArthur Fellows Program is intended to encourage people of outstanding talent to pursue their own creative, intellectual, and professional inclinations," according to the Foundation's website.

2013 Membership Drive continues
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Thank you to the hundreds who responded to our first renewal call. It is fantastic to see so many members taking advantage of the two-year membership option. If you have not done so, please take a moment to renew online. Through Jan. 31, 2013 (new date!), membership is still only $30 (USD) for professional members ($10 students, $15 for seniors). Starting Feb. 1, 2013, member dues will increase by $5 ($35 for professionals, $15 for students, $20 for seniors). Please contact us at any time with your member needs or questions and thank you for your membership.

October Elements: Rare Earth Elements
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The October issue of Elements went to press on Sept. 28. The rapid development and implementation of innovative and green technologies in the past decade have resulted in greatly increased demand for rare earth elements (REE). Guest editors Anton R. Chakhmouradian and Frances Wall lead a cast of authors in providing a comprehensive overview of the key geological, geochemical, and mineralogical aspects of REE distribution in the crust and principal deposit types, as well as discuss economic, political, and environmental issues related to REE mining. View the table of contents.


Featured Geochemical Career Center postings

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Senior-Level Faculty Position in Paleoclimatology (Baylor University, Waco, TX, USA)

Assistant Professor, Atmospheric/ Hydrological Sciences (University of Illinois at Chicago, Chicago, IL, USA)

Carnegie Postdoctoral Fellowship Positions in Geochemistry, Cosmochemistry, and Astrobiology (Carnegie Institution of Washington, Washington, DC, USA)

Environmental Earth Sciences Faculty Position (University of Notre Dame, South Bend, IN, USA)

USGS Mendenhall Research Fellowship in Noble Gas Isotopes or Stable Isotopes (US Geological Survey, Denver, CO, USA)

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

Faculty Positions in Continental Margins and Coastal Environments (Scripps Institution of Oceanography, San Diego, CA, USA)

Job Seekers: It only takes a few minutes to create an account to apply for jobs. Sign up now for access to all the great features on Geochemical Career Center.

Employers: For a nominal fee (a single 60-day post is 250 USD), the link to your post will be distributed in future issues of Geochemical News – reaching over 5,000 subscribers and also on our Facebook page with over 1,000 likes.


New in GCA (v.96, 1 November 2012)
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Kinetics of uncatalyzed thermochemical sulfate reduction by sulfur-free paraffin

Zircon solubility in alkaline aqueous fluids at upper crustal conditions

The effect of atmospheric CO2 concentration on carbon isotope fractionation in C3 land plants

Accounting for long alpha-particle stopping distances in (U–Th–Sm)/He geochronology: 3D modeling of diffusion, zoning, implantation, and abrasion

Isotope disequilibrium effects: The influence of evaporation and ventilation effects on the carbon and oxygen isotope composition of speleothems – A model approach

Characterization of alteration textures in Cretaceous oceanic crust (pillow lava) from the N-Atlantic (DSDP Hole 418A) by spatially-resolved spectroscopy

Immobilization of uranium in biofilm microorganisms exposed to groundwater seeps over granitic rock tunnel walls in Olkiluoto, Finland

Attenuation of rare earth elements in a boreal estuary

Stability of Mg-sulfate minerals in the presence of smectites: Possible mineralogical controls on H2O cycling and biomarker preservation on Mars

Impact of silica on the reductive transformation of schwertmannite and the mobilization of arsenic

U(VI) removal kinetics in presence of synthetic magnetite nanoparticles




 Latest News


CIDER Post-AGU Workshop and Call for Proposals
CIDER    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The deadline to apply for the CIDER (Cooperative Institute for Dynamic Earth Research) Post-AGU workshop is Nov. 1, 2012. Support is also available through CIDER for ad-hoc multi-disciplinary "working groups" on topics related to the CIDER goals again with an application deadline of Nov. 1, 2012.

AGI Webcast on Student Recruitment
The American Geosciences Institute    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The American Geosciences Institute (AGI) in collaboration with the American Geophysical Union (AGU) has created a series of online webcasts for Earth and Space Science Heads and Chairs. The most recent webcast on Student Recruitment has just been released. Dallas Rhodes (emeritus) and Charles Trupe (Associate Professor) of Georgia Southern University led the session, which discussed particularly successful strategies in student recruitment in their geosciences program.

Ice-free arctic sea may be years, not decades, away
Science    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The now-clearly-accelerating decline of summer ice—punctuated by exceptional losses in 2007 and now in 2012—has persuaded everyone that summer Arctic sea ice will be a goner far sooner than the end of the century, as current models predict. More

Introduction to the focus issue on marine boundary layer: Ocean atmosphere interactions processes
Environmental Science & Technology    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Earth's oceans form a coupled system with the atmosphere, exchanging heat, momentum, and water, as well as a large variety of chemical species at the air–sea interface. These exchanges exert a considerable and complex influence on the climate system, as well as having more local effects on regional air quality and marine biological productivity. More

Nanoparticles don't penetrate skin, study finds
The Sydney Morning Herald    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Nanotechnology — the science of super-small particles — has featured in cosmetic formulations since the late '80s. Brands claim the technology delivers the "deep-penetrating action" of vitamins and other "active ingredients". More

Fleeting volcano erupts once, then dies
Futurity    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A marriage of magma and water below the surface of the earth is behind a specific type of volcano that erupts only once before dying. Maar-diatremes, belonging to a family of volcanoes known as monogenetic volcanoes, are not well-known and largely misunderstood, but are actually the most common form of land-based volcano on the planet, researchers say. Though they erupt only once, some eruptions can last for years. More

Seeking signs of life
The Preface    Share    Share on FacebookTwitterShare on LinkedinE-mail article
We may not understand the meaning of life, but what about a definition? This is an idea scientists are currently considering, according to IU Bloomington Professor of Geological Sciences and Biogeochemistry Lisa Pratt, who gave a lecture entitled "Seeking Signs of Life on Mars and Icy Moons." Pratt, whose credentials include conducting research for NASA in the Arctic and South Africa, gave a comprehensive lecture demonstrating how current research on Mars is focused on searching for signs of life. More


 

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