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  1. AGU Members
  2. Barbara Sherwood Lollar
Member Since 1990
Barbara Sherwood Lollar
Professor, University of Toronto
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Professional Experience
University of Toronto
Professor
1992 - Present
Education
University of Waterloo
Doctorate
1990
Harvard University
Bachelors
Barbara's AGU Research
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Natural H2 and Sulfate Production via Radiolysis in Low Porosity and Permeability Crystalline Rocks
JOURNAL OF GEOPHYSICAL RESEARCH: BIOGEOSCIENCES
30 may 2025
The Hidden Biogeosphere – Metabolic Biodiversity and Rate-Limiting Steps in the Deep Subsurface Continental Biosphere
MICROBIAL GEOCHEMISTRY, CHEMICAL GEOBIOLOGY, AND GEOBIOCHEMISTRY: INTEGRATED APPROACHES TO UNDERSTANDING THE WORLD AROUND US III ORAL
biogeosciences | 13 december 2024
Molecular Composition of Organic Matter in 2.7-Billion-Year-Old Rocks and Fracture Water from the Deep Continental Subsurface
MICROBIAL GEOCHEMISTRY, CHEMICAL GEOBIOLOGY, AND GEOBIOCHEMISTRY: INTEGRATED APPROACHES TO UNDERSTANDING THE WORLD AROUND US II POSTER
biogeosciences | 13 december 2024
Small Organic Compounds in Earth’s Deep Fracture Waters: Contributions of Radiolysis and Other Processes
MICROBIAL GEOCHEMISTRY, CHEMICAL GEOBIOLOGY, AND GEOBIOCHEMISTRY: INTEGRATED APPROACHES TO UNDERSTANDING THE WORLD AROUND US II POSTER
biogeosciences | 13 december 2024
Clumped Isotope Signatures of Abiotic Methane: The Role of the Combinatorial Isotope Effect
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
17 july 2024
Methane cycling in the Prony Bay Hydrothermal Field, New Caledonia: insights from clumped CH4 isotopologues and 14C-CH4
SERPENTINIZATION IN SUBMARINE AND SUBSURFACE CONTINENTAL REALMS: ASTROBIOLOGICAL IMPLICATIONS I ORAL
08 may 2024
Ratios of Abiotic to Biotic Carbon Inform on the Scale, Productivity, Behavior, and Detectability of Notional Ocean World Biospheres
BIOSIGNATURE DETECTION AND PRESERVATION IN ICY SURFACE MATERIALS I ORAL
07 may 2024
Little to no Geological Activity Likely on the Seafloor of Europa
GEOPHYSICAL INVESTIGATIONS OF HABITABILITY IN ICY OCEAN WORLDS I ORAL
07 may 2024
Volunteer Experience
2020 - 2021
Member
Honors and Recognition Committee
2018 - 2019
Member
Honors and Recognition Committee
2018 - 2019
Member
AbSciCon Program Committee
Honors & Awards
Carl Sagan Lecture
Received December 2023
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Union Fellow
Received December 2015
Citation
For outstanding contributions to understanding the subsurface carbon systems and energy sources required for sustaining life in extreme environments.
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