The Paul W. Gast Lecture Series honors the Geochemical Society's first Goldschmidt Medalist. The lecture is awarded to a mid-career scientist for outstanding contributions to geochemistry. The lecture is presented as a plenary at the Goldschmidt Conference and includes a certificate and an honorarium (1000 Euro).
The selection of the lecturer alternates between the GS Board of Directors and the EAG Council depending on the location of the Goldschmidt Conference.
| Year | Lecturer | Title |
|---|---|---|
| 2024 | Jiubin Chen | Tracing Metal Adventures from Earth to Life |
| 2023 | Phoebe Lam | Marine particle geochemistry: influence on biogeochemical cycles in the ocean |
| 2022 | Vanessa Hatje | Rare Earth Elements: Tracers of Natural and Anthropogenic Processes Along the Continent-Ocean Continuum |
| 2021 | Sonja Aulbach | Chemical geodynamics with eclogite |
| 2020 | Jochen Brocks | Lost World of Complex Life: Molecular Traces of our Deepest Eukaryotic Ancestors (video) |
| 2019 | Caroline Masiello | New Synthetic Biology Tools to Track Microbial Processes in Soils and Sediments |
| 2018 | Caroline Slomp | Oxygen Loss In Coastal Waters: Impact on Geochemical Cycles |
| 2017 | Shuhei Ono | Clumped Isotopologue (13CH3D) Fingerprinting of Methane Sources |
| 2016 | Shogo Tachibana | Chemical Evolution of the Solar System: Laboratory Experiments and Small-Body Explorations |
| 2015 | Ann Pearson | Organic Geochemical Proxies |
| 2014 | Tim Elliott | The implications of a non-chondritic terrestrial Mg isotope composition |
| 2013 | Sujoy Mukhopadhyay | Probing the Hadean World with Noble Gases |
| 2012 | Ros Rickaby | Tight coupling of life and metals throughout evolution |
| 2011 | Victoria Orphan | Microbial Partnerships and Methane-Oxidation in the Deep Sea |
| 2010 | Jérôme Chappellaz | Greenhouse gases and their isotopes in firn air and ice cores |
| 2009 | Kenneth Farley | Major events in the recent history of the solar system recorded by 3He in deep-sea sediments |
| 2008 | Jérôme Gaillardet | Direct coupling between chemical and physical erosion rates in the West Indies |
| 2007 | Kathrine H. Freeman | Molecular and Isotopic Proxies--from Microbes to Mountains |
| 2006 | John Eiler | Clumped isotope geochemistry |
| 2005 | Eric Oelkers | Mineral Surface Reactivity from the Global to the Atomic Scale |
| 2004 | Peggy O'Day | Cheeseburger in Paradise: Nutrients, Contaminants, and Cycling Across the Abiotic-Biotic Divide |
| 2003 | Hiroshi Ohmoto | Chemical and Biological Evolution of the Early Earth: A Minority Report |
| 2002 | Patricia Dove | Deciphering the Physical Basis of Biomineralization through the Lens of Mineral Assembly |
| 2001 | Don DePaolo | Ca Isotope Geochemistry |
| 2000 | Jill Banfield | |
| 1999 | Bernard J. Wood | Trace Element Partitioning: A Blunt Geochemical Instrument |
| 1998 | Everett Shock | |
| 1997 | Edouard Bard | Geochemical and Geophysical Implications of the Radiocarbon Calibration |