Abstract submission for the Goldschmidt 2018 Conference, scheduled for Boston from August 12-17, is now open. Learn how to prepare and submit your abstract here; the deadline is 30 March. The full list of sessions to which you may submit an abstract is here. Early online registration is also open; registration fees will increase by $100 after 12 June.
For more than 50 years, layered mafic-ultramafic intrusions have served as natural laboratories for studying magma chamber processes and magmatic differentiation. Further enhancing our understanding of layered intrusion formation will yield valuable insights into the solidification of magmatic systems, the formation of precious metal deposits, and the timescales over which substantial crust-forming episodes occur. Read more
EAG members receive print copies of Elements Magazine and have online access to all back issues (user id = email address, password = EAG membership number). To find your membership number, login to your member area.
The EAG Student Sponsorship Program sponsors 12 students each year, up to 500 Euros per student, to attend geochemistry related short courses, summer schools, workshops or conferences located in Europe (except for the Goldschmidt conference). The next application deadline is 1 February. Find out more.
This issue of Geochemical Perspectives charts a paradigm shift in glacier geochemistry and hydrochemistry. The beds of glaciers and ice sheets were thought to be abiotic only 20 years ago, but now it is known that a diverse range of microbes colonise these environments, and that microbial processes influence chemical weathering and nutrient cycling in aqueous subglacial environments. Read more
Geochemical Perspectives is an open access publication of the EAG. The print version is sent to EAG members.
D. Andrault, M. Muñoz, G. Pesce, V. Cerantola, A. Chumakov, I. Kantor, S. Pascarelli, R. Rüffer, L. Hennet
Before the Archean to Proterozoic Transition (APT) the tectonic regime was dominated by microplates floating on a low viscosity mantle. Such a regime restricted chemical exchange between the shallow and deeper mantle reservoirs. After the APT, a more global convection regime led to deep subduction of slabs. Read more
Y. Levenson, S. Emmanuel
The comment by Le Merrer and Colombani (2017) focuses on the mechanisms that could account for our experiments, in which we observed the detachment of micrometre scale calcite grains from the surface of micritic limestone during contact with a reactive fluid (Levenson and Emmanuel, 2017). They discuss some of the forces acting on the grains and imply that our observations are likely to be artefacts of the experimental method. Read more
M. Le Merrer, J. Colombani
Levenson and Emmanuel suggested recently that the mechanism of carbonate rock weathering in fluids is not limited to nanoscale processes but that chemico-mechanical processes also take place at the micrometre scale, such as grain detachment from the material surface. This phenomenon was first observed in flowing liquids (Levenson and Emmanuel, 2016). Read more
[Interview by the EAG Communications Committee] Adina Paytan is a Research Professor at the Institute of Marine Sciences, University of California, Santa Cruz. The major focus of her research is understanding past and present marine biogeochemical cycles. Read more
[By the EAG ambassadors] Last December, six EAG Early Career Science Ambassadors travelled to New Orleans to attend the 2017 edition of the Annual Fall Meeting of the American Geophysical Union. In Part 1, they talk to us about what it was like attending and presenting at the world's largest geosciences meeting, as well as some of the careers workshops on offer! Read more
[Science] The bomb cyclone that hit the northeastern United States last week left roadways and vehicles caked in a white film of road salt and grime. Those salts might be washing into the region’s fresh waterways, a new study reveals. Read more
[BBC] Scientists think they can now better explain the recent surge in methane levels seen in the Earth's atmosphere. Although only a trace component in the air, CH4 is a greenhouse gas and has been rising rapidly since about 2006. Read more
[SciTechDaily] Princeton University researchers have found that the climate models scientists use to project future conditions on our planet underestimate the cooling effect that clouds have on a daily — and even hourly — basis, particularly over land. Read more
[ScienceDaily] Chemists at The Scripps Research Institute (TSRI) have developed a fascinating new theory for how life on Earth may have begun. Their experiments, described today in the journal Nature Communications, demonstrate that key chemical reactions that support life today could have been carried out with ingredients likely present on the planet four billion years ago. Read more
Receive job ads as they are posted: like us on Facebook or follow us on Twitter (@EAG_). To post a position on the EAG job page (free of charge): click here.
PhD & MSc positions:
One PhD position available at the University of Liege (Belgium) in the field of petrology-volcanology to investigate magmatic processes under one volcano of the andean arc (Chili) - University of Liege
Two PhD positions available in Environmental Biogeochemistry and Soil Science to study arsenic uptake and speciation at the soil/plant and plant/mammalian interface - University of Bern
2 PhD Positions: Winter Soil Processes in Transition - A research project to advance the process-based understanding of the function of soil biogeochemical processes in cold region - University of Waterloo
Open positions: Biochemical, Genetic, Metabolic, and Isotopic Constraints on an Ancient Thiobiosphere - Multiple locations
PhD position in eco-hydrology (Hydrological constraints on Rare Earth Elements dynamics in the regolith-plant continuum) - LIST Luxembourg
PostDoctoral and Fellowship positions:
Postdoctoral position in fjord sedimentology and sediment geochemistry. - Ghent University
2-year Postdoc Position - Building the crust of Mercury - University of Liege
Postdoctoral Researcher position in MD simulations - McGill University
Postdoctoral Researcher position in Experimental Petrology - McGill University
Research Associate in Fluid-Rock-Gas Geochemistry - University College London
Research Fellow / Akademische(r) Rat/Rätin auf Zeit (Salary Scale A13, 100%) - Leibniz Universität Hannover
Full-time, 12-month Laboratory Manager / Research Associate in the School of Geosciences Stable Isotope Lab - University of South Florida
Postdoctoral position in geochemistry/cosmochemistry - California Institute of Technology
Open positions: Biochemical, Genetic, Metabolic, and Isotopic Constraints on an Ancient Thiobiosphere - Multiple locations
Two Postdoctoral positions in Biogeochemical and Ecosystem Modeling - Global Water Futures Program, Ecohydrology Research Group, University of Waterloo
Faculty, Technical and other positions:
Tenured Full Professor Position in Astrobiology at the Institute for Planetary Materials. - Okayama University
ERG recrute au sein de son agence basée à La Seyne sur mer (83), un Technicien Géologue H/F(Position advertised in French) - ERG Géotechnique
Full-time academic position in Geochemistry of extreme environments - Université Libre de Bruxelles
7th EuCheMS Chemistry Congress: abstract deadline: 29 Jan
ICHMET2018: 19th International Conference on Heavy Metals in the Environment : abstract deadline: 1 Feb
ICCBES 2018: International Congress on Chemical, Biological and Environmental Sciences: abstract deadline: 9 Feb
IMA2018: XXII General Meeting of the International Mineralogical Association: abstract deadline: 28 Feb
International Conference on Magmatism of the Earth and related Strategic Metal Deposits: Early registration deadline: 28 Feb
EGU General Assembly 2018: Early registration deadline: 1 Mar