World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

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

James Farquhar publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where James Farquhar sits on this spectrum.

38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38 publications 603+

This scientist: 233 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

James Farquhar D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where James Farquhar sits on this spectrum.

30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 72 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

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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