World's Best Scientists 2026 revealed!

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Earth Science

D-Index
72
Citations
17773
World Ranking
859
National Ranking
409

Research.com Recognitions

  • 2019 - Fellow of American Geophysical Union (AGU)
  • 2019 - Member of the National Academy of Sciences
  • 2008 - Fellow of John Simon Guggenheim Memorial Foundation

Overview

James Farquhar is affiliated with the University of Maryland, College Park in the United States. Their research primarily focuses on Earth and Planetary Sciences and Environmental Science, contributing significantly to these fields through numerous publications.

The scientist's work spans multiple subfields including Geophysics, Atmospheric Science, Astronomy and Astrophysics, Environmental Chemistry, and Global and Planetary Change. This interdisciplinary approach supports investigations into diverse scientific topics.

Key topics in Farquhar's research include Atmospheric and Environmental Gas Dynamics, Methane Hydrates and Related Phenomena, Geological and Geochemical Analysis, Isotope Analysis in Ecology, Hydrocarbon Exploration and Reservoir Analysis, Earthquake and Tectonic Studies, as well as Paleontology and Stratigraphy of Fossils.

Frequent collaborators in their work include Mojhgan Haghnegahdar, Cédric Magen, Jiayang Sun, Amaury Bouyon, and James Dottin, reflecting collaborations across varied research areas.

The scientist's publications are often found in several notable venues. The most frequent publication outlets are Goldschmidt Abstracts, Geochemistry Geophysics Geosystems, Goldschmidt2022 Abstracts, Earth and Planetary Science Letters, and Journal of Geophysical Research Biogeosciences.

Representative recent publications include:

  • "Tracing sources of atmospheric methane using clumped isotopes" (2023, Proceedings of the National Academy of Sciences)
  • "Sulfur isotope characterization of primordial and recycled sources feeding the Samoan mantle plume" (2020, Earth and Planetary Science Letters)
  • "Isotopic Evidence for Multiple Recycled Sulfur Reservoirs in the Mangaia Mantle Plume" (2020, Geochemistry Geophysics Geosystems)
  • "Deglacial volcanism and reoxygenation in the aftermath of the Sturtian Snowball Earth" (2023, Science Advances)
  • "Sulfur Isotope Constraints on the Petrogenesis of the Kimberley Kimberlites" (2021, Geochemistry Geophysics Geosystems)

The research contributions of James Farquhar have been recognized by several awards. They were named a Fellow of the American Geophysical Union (AGU) in 2019 and were also elected as a Member of the National Academy of Sciences the same year. Additionally, Farquhar was a Fellow of the John Simon Guggenheim Memorial Foundation in 2008.

Best Publications

  • Atmospheric Influence of Earth's Earliest Sulfur Cycle

    James Farquhar;Huiming Bao;Mark Thiemens

  • Multiple sulfur isotopes and the evolution of the atmosphere

    James Farquhar;Boswell A Wing

  • Animal evolution, bioturbation, and the sulfate concentration of the oceans.

    Donald E. Canfield;James Farquhar

  • Observation of wavelength-sensitive mass-independent sulfur isotope effects during SO2 photolysis: Implications for the early atmosphere

    James Farquhar;Joel Savarino;Sabine Airieau;Mark H. Thiemens

  • Temperatures of Granulite-facies Metamorphism: Constraints from Experimental Phase Equilibria and Thermobarometry Corrected for Retrograde Exchange

    David R. M. Pattison;Thomas Chacko;James Farquhar;Christopher R. M. McFARLANE

  • Late Archean Biospheric Oxygenation and Atmospheric Evolution

    Alan J. Kaufman;David T. Johnston;James Farquhar;Andrew L. Masterson

  • Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate

    Pascal Philippot;Mark Van Zuilen;Kevin Lepot;Christophe Thomazo

  • High isotope fractionations during sulfate reduction in a low-sulfate euxinic ocean analog

    Donald Eugene Canfield;James Farquhar;James Farquhar;Aubrey L. Zerkle

  • Mass-dependent fractionation of quadruple stable sulfur isotope system as a new tracer of sulfur biogeochemical cycles

    Shuhei Ono;Boswell Wing;David Johnston;James Farquhar

  • Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth

    J. Farquhar;B. A. Wing;K. D. McKeegan;J. W. Harris

  • Isotopic evidence for Mesoarchaean anoxia and changing atmospheric sulphur chemistry

    James Farquhar;Marc Peters;David T. Johnston;Harald Strauss

  • Sulfate was a trace constituent of Archean seawater

    Sean Andrew Crowe;Sean Andrew Crowe;Guillaume Paris;Sergei Katsev;CarriAyne Jones;CarriAyne Jones

  • A Contemporary Microbially Maintained Subglacial Ferrous "Ocean"

    Jill A. Mikucki;Ann Pearson;David T. Johnston;Alexandra V. Turchyn

  • Reconstructing Earth's surface oxidation across the Archean-Proterozoic transition

    Qingjun Guo;Qingjun Guo;Harald Strauss;Alan J. Kaufman;Alan J. Kaufman;Stefan Schröder

  • Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites

    James Farquhar;Joel Savarino;Terri L. Jackson;Mark H. Thiemens

  • Multiple sulphur isotopic interpretations of biosynthetic pathways: implications for biological signatures in the sulphur isotope record

    James Farquhar;David T. Johnston;Boswell A. Wing;Kirsten S. Habicht

  • Anomalous sulphur isotopes in plume lavas reveal deep mantle storage of Archaean crust

    Rita A. Cabral;Matthew G. Jackson;Estelle F. Rose-Koga;Kenneth T. Koga

  • Geological constraints on the origin of oxygenic photosynthesis

    James Farquhar;Aubrey L. Zerkle;Andrey Bekker

  • Active Microbial Sulfur Disproportionation in the Mesoproterozoic

    David T. Johnston;Boswell A. Wing;James Farquhar;Alan J. Kaufman

  • Sulfur isotope insights into microbial sulfate reduction: When microbes meet models

    David T. Johnston;James Farquhar;Donald E. Canfield

  • Reconstructing Earth's Surface Oxidation Across The Archean- Proterozoic Transition

    A. J. Kaufman;Q. Guo;H. Strauss;S. Schröder

Frequent Co-Authors

Boswell A. Wing
Boswell A. Wing University of Colorado Boulder
Donald E. Canfield
Donald E. Canfield University of Southern Denmark
Mark H. Thiemens
Mark H. Thiemens University of California, San Diego
Joel Savarino
Joel Savarino Grenoble Alpes University
Alan J. Kaufman
Alan J. Kaufman University of Maryland, College Park
Harald Strauss
Harald Strauss University of Münster
Simon W. Poulton
Simon W. Poulton University of Leeds
Mark W. Claire
Mark W. Claire University of St Andrews
Anthony J. Irving
Anthony J. Irving University of Washington
Matthew G. Jackson
Matthew G. Jackson University of California, Santa Barbara

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