As a new year is just around the corner, it is a good time to join EAG or renew your membership. Membership is calendar year, so to make sure you receive all 2017 print publications, join/renew before end of 2016. If your membership expires end of this year, reminders are sent regularly. Access the member login to renew, update your details, view invoices etc.
2017 membership fees are unchanged: 25 Euros for professionals or 100 Euros for 5 years | 15 Euros for students or 35 Euros for 3 years, and as EAG develops new initiatives and partnerships with other societies, our membership benefits keep expanding.
Also check our recent blog post, Why become an EAG member?
Following the council elections which took place last month, we are excited to announce a record turn out of 39% and would like to thank EAG members for their participation. We are particularly grateful to all the candidates who agreed to stand for elections. Rizlan Bernier-Latmani, Carsten Münker and Emily Pope were elected and will officially join the EAG Council from January 2017.
It is now time to send nominations for the Science Innovation Award named after Heinz Lowenstam (for his work in biogeochemistry) as exceptionally, the deadline is 15 December. Note that nominees should be within 30 years from the start of PhD.
What does it change to receive an award? Read testimonies from recent medallists.
With the goal of promoting geochemistry, EAG proudly co-organises several geochemistry related sessions at the EGU General Assembly 2017 (Vienna, 23-28 April). Consider submitting an abstract before 11 January. EAG also co-sponsors the short course Petrochronology: Methods and applications (22-23 April, Vienna) and provides support for 10 students. This two-day short course will involve a series of lectures and practicals from leaders in the scientific fields of magmatic and metamorphic petrology and geochronology. Apply for support before 3 February.
EAG is delighted to report signing a Memorandum of Understanding with the Society for Geology Applied to Mineral Deposits (SGA). SGA members now enjoy the same terms and conditions for registering at European Goldschmidt conferences as EAG members. EAG members in turn can register at member rates when attending the 14th Biennial SGA Meeting (20-23 August 2017, Québec City, Canada). Note deadline for abstract submission is 28 February.
EAG Latest Publications
Thoughts and Reminiscences on Experimental Trace Element Partitioning
John H. Jones (NASA Johnson Space Center)
In this issue, John Jones reviews the history of experimental trace element partitioning from his personal point of view. In so doing, he considers experimental and analytical complexities, simple phase equilibria, and thermodynamic considerations. Jones also recounts personal interactions with other geochemists and petrologists.
Water in alkali feldspar: The effect of rhyolite generation on the lunar hydrogen budget
R.D. Mills, J.I. Simon, C.M.O’D. Alexander, J. Wang, E.H. Hauri
Recent detection of indigenous hydrogen in a diversity of lunar materials, including volcanic glass (Saal et al., 2008), melt inclusions (Hauri et al., 2011), apatite (Boyce et al., 2010; McCubbin et al., 2010), and plagioclase (Hui et al., 2013) suggests water played a role in the chemical differentiation of the Moon. Water contents measured in plagioclase feldspar, a dominant mineral in the ancient crustal lunar highlands have been used to predict that 320 ppm water initially existed in the lunar magma ocean… […]
Scandium speciation in a world-class lateritic deposit
M. Chassé, W.L. Griffin, S.Y. O’Reilly, G. Calas
Scandium (Sc) has unique properties, highly valued for many applications. Future supply is expected to rely on unusually high-grade (up to 1000 ppm) lateritic Sc ores discovered in Eastern Australia. To understand the origin of such exceptional concentrations, we investigated Sc speciation in one of these deposits. The major factors are unusually high concentrations in the parent rock together with lateritic weathering over long time scales in a stable tectonic context. […]
Direct sensing of total alkalinity profile in a stratified lake
M. Ghahraman Afshar, M. Tercier-Waeber, B. Wehrli, E. Bakker
We demonstrate the direct detection of a total alkalinity depth profile through the use of an integrated thin layer electrochemical modulation instrument which acts as an alkalinity sensor. The technique uses a chemically selective proton pump that alters the concentration of hydrogen ions in the thin layer sample. As the proton pump releases hydrogen ions the resulting pH is recorded at the pH probe placed directly opposite the thin sample gap. […]
Late accretion history of the terrestrial planets inferred from platinum stable isotopes
J.B. Creech, J.A. Baker, M.R. Handler, J.-P. Lorand, M. Storey, A.N. Wainwright, A. Luguet, F. Moynier, M. Bizzarro
Late accretion of chondritic material to differentiated planetary bodies is thought to have been common in the early solar system. However, the timing and scale of admixing this material to terrestrial planets are poorly constrained. Using platinum (Pt) stable isotope data in a range of solar system bodies, we show that Earth’s post-Archean mantle has chondritic 198Pt/194Pt, consistent with addition of a chondritic late-veneer after core formation. […]