The distinguished scientists presenting plenary lectures at this year's Goldschmidt Conference will address pressing issues for geochemistry and the wider world, including rare-earth elements, raw materials needed for the clean energy transition, metal isotope systems, mantle plumes, and climate change and biodiversity loss.
Applications for the Volunteer Program are welcome from PhD students and those who have graduated in the last 3 years, whether they plan to attend the conference in person or remotely. Helpers who volunteer for 4 days or more receive a free registration and an honorarium per day.
Helping scientists caught up in the conflict in Ukraine
The EAG expresses support for scientists caught up in the conflict in Ukraine and encourages European research institutions to consider hosting refugee scientists through this community initiative: more info and add your details at https://bit.ly/ua-form.
More than 1500 labs worldwide have signed up (https://bit.ly/ua-table) and we encourage you to participate if you are able.
Global Geochemistry Community Survey: Help Us Reach Our Goal
We are now over 85% of the way towards our response rate goal for theGlobal Geochemistry Community Surveyand we are asking for your help to get us to the finish line.
If you haven’t already completed this survey, we would greatly appreciate 15 minutes of your time. If you have completed the survey, thank you! Please consider forwarding the survey to your Geochemistry colleagues (whether they are members or not).
EAGE-EAG Webinar: 'Mineral carbonation: Is it an option for the worldwide storage of CO2?'
We look forward to welcoming you to the first webinar organized by the EAGE-EAG Community Group on Friday 22 April at 10:00 CET. This first event will feature a lecture by Eric H. Oelkers, 'Mineral carbonation: Is it an option for the worldwide storage of CO2?', followed by Q&A. Find out more about the webinar and sign up by 21 April to attend.
Elements latest issue: 'Heavy Stable Isotopes: From Crystals to Planets'
Stable isotopes are formidable tracers of physicochemical processes at all scales. Steady advances in mass spectrometry have allowed isotopic inquiries to move from the so-called “traditional” systems (i.e., H, C, N, O, and S) to heavier “nontraditional” systems (e.g., Fe, Mo, Ti, Zr, U) whose diverse geochemical characteristics are providing novel and complementary insights. Moving from micron-size systems (single crystals) to planetary-size bodies, the articles in this issue explore the enormous range of temporal and physical scales over which heavy stable isotopes have provided paradigm-shifting insights into the evolution of our planet and solar system. Also highlighted are new frontiers where novel stable isotope systematics appear particularly promising for unraveling long-standing questions.
All EAG members have online access to current and past issues of Elements. Members who have selected to receive print copies of Elements, will shortly receive the latest issue by post (log into the EAG Membership Platform to verify your preferences and postal address).
EAG Co-Sponsored Event: 12th International Symposium Geochemistry of the Earth’s Surface - Apply for EAG Student Support by 1 April
The 12th edition of GES will take place 24–29 July at ETH Zurich (Switzerland). The overarching theme of GES12 is Earth system interactions on a changing planet, and we particularly encourage research contributions linking environmental compartments and connecting the Earth's spheres.
We encourage talented students to participate to GES12 by applying for a EAG sponsored scholarship. Successful applicants will pay a reduced registration fee of CHF 100 (or CHF 70 for an early registration before May 1, 2022). We can offer this scholarship to five students.
See here for scholarship details and apply by 1 April.
EAG Co-Sponsored Event: Forming and Exploring Habitable Worlds - Registration is open!
We are delighted to inform you that registration for the hybrid format and EAG co-sponsored inaugural Forming and Exploring Habitable Worlds Meeting taking place in Edinburgh this November is now open! The abstract submission and early bird rates are set to close on 22 April. An indicative programme is available. The application form and guidance for the event's bursary provisions are accessible too! Application deadline is 25 April.
Learning project: 'Silica: from stardust to the living world'
The Silica School is an online course that is offered every year in November focused on the study of the silica cycle on planet Earth (and beyond). The Silica School is a small private online course, or SPOC, that was created through a collaboration between several international institutions/universities in order to offer the best and most up-to-date e-learning experience on the subject of “Silica: from stardust to the living world”. Please contact Jill Sutton (jill.sutton@univ-brest.fr) for more information.
[EAG Communications Committee] Dr. Andy Ridgwell (University of California, Riverside) writes computer models – numerical representations of the primary interactions of climate with atmospheric CO2, including the cycling of carbon, oxygen, and nutrients between land, ocean, and marine sediments.
Being a Distinguished Lecturer during the Pandemic Times
[Juan Diego Rodriguez Blanco] Early 2020 I received a very kind email inviting me to be the EAG Distinguished Lecturer, which involved giving talks in Eastern and Central Europe. That was the original plan. Then the pandemic began...
Where do geochemistry teams start and end? Professional and technical support is vital to us all!
[EAG DEI Committee] It is imperative to geochemistry's future success that team culture is valued and recognised, and that technical and support staff are priorities in our work to advance inclusion. In drawing strength...
Isotope evidence for the coupled iron and carbon cycles 1.4 billion years ago
Although ferruginous waters were widespread in the deep ocean until 0.58 Ga, massive Fe deposits were rare during the interval from 1.8−0.8 Ga. Here, we report the contents and isotopic compositions of Fe and C from the ∼1.4 Ga Xiamaling (XML) siderite deposits, North China. A genetic model is introduced to interpret the dynamic...
The end of the isotopic evolution of atmospheric xenon
Noble gases are chemically inert and, as such, act as unique tracers of physical processes over geological timescales. The isotopic composition of atmospheric xenon, the heaviest stable noble gas, evolved following mass-dependent fractionation throughout the Hadean and Archaean aeons. This evolution appears to have ceased between 2.5 and 2.1 Ga, around the time of the Great Oxidation Event (GOE).
Experiments reveal enrichment of 11B in granitic melt resulting from tourmaline crystallisation
Tourmaline is the most common boron-rich mineral in magmatic systems. In this study, we determined experimentally the fractionation of boron isotopes between granitic melt and tourmaline for the first time. Our crystallisation experiments were performed using a boron-rich granitic glass...
Oxidation of La Réunion lavas with MORB-like fO2 by assimilation
Oxygen fugacity (fO2) is poorly constrained in mantle reservoirs, especially those sampled by ocean island basalts (OIBs). This is partly due to complications from secondary processes acting on fO2 in OIB parental magmas. To investigate these issues in situ trace element data of olivine in lavas from the island of La Réunion are reported. La Réunion lavas are useful for examining post-melting...
Satellite images show the Amazon rainforest is hurtling toward a ‘tipping point’
[The Washington Post] Viewed from space, the Amazon rainforest doesn’t look like an ecosystem on the brink. Clouds still coalesce from the breath of some 390 billion trees. Rivers snake their way through what appears to be a sea of endless green.
Springtime asteroid hit ramped up extinction rates, say scientists
[The Guardian] Having an asteroid slam into Earth was catastrophic for the dinosaurs, but the season of the strike may have substantially ramped up extinction rates for others species, research suggests. Scientists have found evidence that the devastating impact 66m years ago...
Massive meteor crater discovered beneath Greenland's ice is much older than thought
[CNN] The age of a 31-kilometer (19-mile) wide meteorite crater discovered under a kilometer of Greenland ice had long puzzled scientists. The Hiawatha crater was exceptionally well preserved despite glacier ice being incredibly effective at erosion.
Astronomers discover the largest molecule yet in a planet-forming disc
[Cosmos] Researchers have detected the organic molecule dimethyl ether (CH₃OCH₃) in a planet-forming disc for the first time, according to a new study published in the journal Astronomy & Astrophysics.
How did Earth go From Molten Hellscape to Habitable Planet?
[Universe Today] Earth formed from the Sun’s protoplanetary disk about 4.6 billion years ago. In the beginning, it was a molten spheroid with scorching temperatures. Over time, it cooled, and a solid crust formed. Eventually, the atmosphere cooled, and life became a possibility.
Ice holds evidence of ancient, massive solar storm
[Astronomy.com] For a few nights more than 9,000 years ago, at a time when many of our ancestors were wearing animal skins, the northern skies would have been bright with flickering lights. Telltale chemical isotopes in ancient ice cores...
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