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Ancient volcanic explosions shed light on Mercury's origins
The surface of Mercury crackled with volcanic explosions for extended periods of the planet's history, according to a new analysis. The findings are surprising considering Mercury wasn't supposed to have explosive volcanism in the first place, and they could have implications for understanding how Mercury formed.
Goldschmidt2014: Early Registration Deadline Today
Goldschmidt2014 is fast approaching and today (April 8) is the last day for early registration, field trips, and tours/excursions. Workshops, and social events may be booked through May 8, subject to availability. Also be sure to book accommodations early. For those needing it, a letter of invitation may be requested with your registration. Early registration for members is 590 US$ for delegates and 350 US$ for students. Please encourage your colleagues and students who plan to attend Goldschmidt2014 and are not members of one of the sponsoring societies (GS, EAG, GSJ and AGU) to join first, so that they may qualify for the member rate.
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Please contact us at analab.fr or isomass.com.
RIMG v.78 — Spectroscopic Methods
The newest RIMG volume, Spectroscopic Methods in Mineralogy and Materials Sciences, is now available for purchase. Spectroscopy is the study of the interaction between matter and radiation, and spectroscopic methods measure this interaction by measuring the radiative energy of the interaction in terms of frequency or wavelength or their changes. This volume compliments the original 1988 volume (RIM v.18: Spectroscopic Methods in Mineralogy and Geology) and updates many of the techniques, taking into account many significant advances in both the technological aspects of these techniques and their applications to problems in Earth Sciences in general. In addition, new methods such as X-ray Raman and Brillouin spectroscopy have been added, as well as non-spectroscopic chapters such as Transmission Electron Microscopy (TEM) and Atomic Force Microscopy (AFM) for completeness.
GS Members receive a 25 percent discount for this and all RIMG titles.
GSA-Vancouver now accepting abstracts
Abstract submissions are now open for the 2014 GSA Annual meeting held October 19-22, 2014, in Vancouver, BC, Canada. Attendees have the option of submitting oral, poster or digital posters this year and may submit up to two abstracts (as long as one is a poster/digital poster). The abstract submission deadline is July 29. Thanks to the efforts of session chairs and the GS Program Committee, the Geochemical Society is sponsoring 37 sessions.
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New in GCA (v.129, 15 March 2014)
Tungsten diffusion in olivine
Nitrogen speciation in mantle and crustal fluids
A predictive model for the transport of copper by HCl-bearing water vapour in ore-forming magmatic-hydrothermal systems: Implications for copper porphyry ore formation
Solubility of C_O_H volatiles in graphite-saturated martian basalts
Speciation and thermodynamic properties of manganese(II) chloride complexes in hydrothermal fluids: In situ XAS study
40Ar/39Ar dating of microgram feldspar grains from the paired feldspathic achondrites GRA 06128 and 06129
Oxygen and carbon isotope fractionation in the system dolomite–water–CO2 to elevated temperatures
Water in the deep Earth: The dielectric constant and the solubilities of quartz and corundum to 60 kb and 1200 °C
Uncertainty in paleohydrologic reconstructions from molecular δD values
Experimental investigation of Ca isotopic fractionation during abiotic gypsum precipitation
Effects of dissimilatory sulfate reduction on FeIII (hydr)oxide reduction and microbial community development
Dr. Robert D. Hatcher awarded Marcus Milling Legandeary Geoscientist Medal
Robert D. Hatcher Jr., Distinguished Scientist and Professor at the University of Tennessee-Knoxville and former President of the American Geosciences Institute (AGI), was unanimously approved by the AGI Executive Committee to receive the 2014 Marcus Milling Legendary Geoscientist Medal. This award honors a lifetime contributor of high quality scientific achievements and service to the Earth sciences, and the Selection Committee's nomination report highlighted his achieving legendary status for his lifetime of commitment to field mapping-based research, combining the latest geophysical, geochemical, isotopic and modeling techniques.
NASA HQ Job Posting: Chief Exploration Scientist
NASA Headquarters is currently seeking a Chief Exploration Scientist for the AST-Science Program Management Physical Scientist in the Human Exploration and Operations Mission Directorate (HEOMD). Applications must be received by April 15. The position serves as agency expert, overseeing programs that analyze the effectiveness of agency programs with major action missions or functions. Analyzes, and evaluates existing new, and emerging functional requirements of the programs, operational standards, and measures of effectiveness. Develops critical measures of program performance, human exploration strategic knowledge gaps and provides science strategy and policies for robotic and human spaceflight missions and within AES programs. Serves as liaison to external program advisory groups representing the Moon, Mars, and small bodies science communities. Coordinates the development of Strategic Knowledge Gaps with international space agencies.
L'Oréal USA for Women in Science Fellowship
The L'Oréal USA For Women in Science fellowship program has awarded 50 post-doctoral women scientists over $2 million in grants since 2003. Applications for 2014 Fellowships are due Monday, May 19, 2014. The 2014 fellowship program will award five post‐doctoral women scientists in the United States this year with grants of up to $60,000 each. Applicants are welcome from a variety of fields, including the life and physical/material sciences, technology, engineering, and mathematics.
Yellowstone belches ancient helium
Yellowstone National Park's geysers, hot springs, fumaroles and other hydrothermal features spew out a collection of gases from deep within the Earth—steam, carbon dioxide, methane, neon, argon and helium. There's not enough of that last one, helium, for the park to start selling balloons or for visitors to sound like chipmunks, but there's plenty for scientists to study.
Seismic imaging revisits an old question: What drives continental drift?
Long before geologists worked out the theory of plate tectonics, there was discussion about whether Earth's continents had moved about. The most detailed, and most famous, case was made by Alfred Wegener after the turn of the 20th century. The best objection to his idea was that he couldn't provide a plausible mechanism that could drive this "continental drift."
Granite bedrock and sequoia forests 'communicate' in the Sierra Nevada
National Science Foundation
If a tree falls in the forest and no one is around to hear it, does it make a sound? If it lands on granite bedrock, it does. But beyond the crash of timber onto rock, scientists have found that bedrock and the trees that grow from its weathered soils are, in a sense, communicating.
Missed last week's issue? See which articles your colleagues read most.
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Lesley Warren, and Helen Williams
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