Treatise on Geochemistry

Ariel Anbar is a scientist and educator interested in Earth’s past and future as an inhabited world, and the prospects for life beyond. His group develops novel geochemical methods to study topics ranging from the chemical evolution of the atmosphere and oceans to human disease. Dr. Anbar is a President’s Professor at Arizona State University on the faculty of the School of Earth & Space Exploration and the School of Molecular Sciences, and a Distinguished Global Futures Scientist in ASU’s Julie Ann Wrigley Global Futures Laboratory. Since 2015, Dr. Anbar has been directed ASU’s Center for Education Through Exploration. He led ASU's Astrobiology Program from 2009 – 2015. A graduate of Harvard and Caltech, Dr. Anbar was on the faculty of the University of Rochester until 2004, when he relocated to ASU. An author of >200 refereed papers, Dr. Anbar is a Fellow of the American Geophysical Union (AGU), the Geological Society of America (GSA), the Geochemical Society and the European Association of Geochemistry, and is a Howard Hughes Medical Institute Professor. He was President of AGU’s Biogeosciences Section from 2017 – 2019, and was invited to give the AGU’s Carl Sagan Lecture in 2022. He is a recipient of the GSA’s Donath Medal and the Arthur L. Day Medal.

Director of the Pacific Center for Isotopic and Geochemical Research, Killam Professor at the University of British Columbia, Dominique Weis, is a leader in the innovative use of trace element and isotope geochemistry and is widely respected "for the elegance, precision, and impact of her geochemical studies of the Earth from large igneous provinces to the environment" (AGU Fellow citation). Her research aims to (1) determine the origin, source and pathways of mantle plumes (e.g., Hawaii, Galapagos), and their variations through time; (2) apply geochemical tools to resolve Indigenous-led questions about artifacts' origin, distribution and trade; and (3) improve our understanding of human impact, using biomonitors such as honey or salmon to trace metal distribution in the environment. Dr. Weis has published over 240 peer-reviewed articles, served on scientific editorial boards, and lectured in academic and public settings and policy committees for regulators and legislators. A graduate of ULB, Belgium, she is a 3-term Canadian Research Chair. She was elected AGU Fellow in 2010 and Geochemical Fellow in 2011 and was awarded the Canadian Federation of Earth Science Mentorship Medal in 2020. Dr. Weis also serves on scholarly or leadership committees for the American Geophysical Union, the Geochemical Society, and NSERC.