Bernd (Berni) R.T. Simoneit (1937-2023)
The Geochemical Society remembers Bernd R.T. “Berni” Simoneit (1937–2023), a pioneering organic and environmental biogeochemist whose groundbreaking work on biomarkers advanced our understanding of Earth’s history, aerosols, and planetary science. His global collaborations and discoveries leave a lasting legacy. More…
James Bischoff (1940-2021)
The Geochemical Society honors James Bischoff (1940–2021), a pioneering marine geochemist whose breakthroughs spanned hydrothermal systems, climate records, and paleoanthropology. His predictions, discoveries, and 375 publications leave a profound scientific legacy, matched only by his devotion to family. More…
Remembering William “Bill” Reeburgh (1940-2021)
The Geochemical Society remembers William “Bill” Reeburgh (1940–2021), a pioneer in methane cycle research whose work transformed biogeochemistry. A Geochemistry Fellow and generous supporter of the GS, his legacy endures through scientific contributions, mentorship, and the Endowed Biogeochemistry Lecture. More…
Remembering Frederick A. Frey (1938-2021)
The Geochemical Society honors Frederick A. Frey (1938–2021), whose pioneering research on Earth’s upper mantle and magmas shaped modern geochemistry. A dedicated mentor and esteemed leader, he advanced trace element and isotope studies, guided over 30 graduate students, and inspired colleagues worldwide through science, teaching, and exploration. More…
Ross Taylor (1925-2021)
Stuart Ross Taylor (1925–2021) made groundbreaking contributions to understanding Earth’s crust, the Moon, tektites, and the solar system. A Goldschmidt Medalist, prolific author, and mentor, he combined scientific rigor with humility, leaving a lasting legacy in planetary and geochemical research. More…
Günter W. Lugmair (1940-2021)
Günter W. Lugmair (1940–2021) revolutionized isotope geochemistry, pioneering Sm-Nd dating, discovering extinct radionuclides, and advancing mass spectrometry to unprecedented precision. His work illuminated the Moon’s history and early Solar System processes, while his mentorship and passion for science inspired generations. More…
John Hayes (1940-2017)
John Hayes (1940–2017) was a pioneering geochemist whose isotope studies reshaped understanding of the carbon cycle, photosynthesis, and Earth’s environmental history. A gifted mentor and celebrated scholar, he combined scientific rigor with warmth, curiosity, and a deep passion for life, travel, and the natural world. More…
Ian Hutcheon (1948-2015)
Ian Hutcheon (1948–2015) advanced cosmochemistry, planetary science, and nuclear forensics through pioneering isotopic studies and leadership at Lawrence Livermore National Laboratory. A gifted mentor and collaborator, he authored over 200 works, co-wrote Nuclear Forensics Analysis, and inspired colleagues worldwide. More…
Robert Berner (1935 - 2015)
Robert A. Berner (1935–2015) transformed geochemistry through pioneering work on sedimentary processes, carbon cycling, and Earth’s CO₂ history. A devoted mentor and leader, his research shaped modern climate science and inspired generations, leaving a legacy of scientific rigor, curiosity, and deep humanity. More…
Karl K. Turekian (1927-2013)
Karl K. Turekian (1927–2013), Sterling Professor at Yale, was a world-renowned geochemist whose five-decade career shaped the field. A past Geochemical Society president, prolific author, and mentor, he combined groundbreaking research with an infectious enthusiasm and storytelling that inspired generations. More…