World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
63
Citations
13770
World Ranking
1601
National Ranking
71

Fred J. Longstaffe 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 Fred J. Longstaffe 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: 365 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Fred J. Longstaffe 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 Fred J. Longstaffe 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: 63 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Overview

Fred J. Longstaffe is affiliated with the University of Western Ontario in Canada. Their research primarily spans the fields of Earth and Planetary Sciences and Environmental Science, with extensive work in several interconnected subfields including Ecology, Atmospheric Science, Paleontology, Astronomy and Astrophysics, and Geophysics.

The scientist's work focuses on a range of topics related to geological and paleoenvironmental studies. Key thematic areas include:

  • Geology and Paleoclimatology Research
  • Isotope Analysis in Ecology
  • Archaeology and Ancient Environmental Studies
  • Groundwater and Isotope Geochemistry
  • Paleontology and Stratigraphy of Fossils
  • Marine Animal Studies Overview
  • Planetary Science and Exploration

Among notable recent papers, the following are representative of their research contributions:

  • Probing the hydrothermal system of the Chicxulub impact crater, 2020, published in Science Advances
  • Hydrothermal alteration associated with the Chicxulub impact crater upper peak-ring breccias, 2020, published in Earth and Planetary Science Letters
  • Large-scale stable isotope characterization of a Late Cretaceous dinosaur-dominated ecosystem, 2020, published in Geology
  • Relating wing morphology and immune function to patterns of partial and differential bat migration using stable isotopes, 2022, published in Journal of Animal Ecology
  • Systematics of smectite hydrogen-isotope composition: Structural hydrogen versus adsorbed water, 2021, published in Applied Clay Science

Fred J. Longstaffe has frequently collaborated with other researchers. Prominent co-authors include Rebecca M. Doyle, G. R. Osinski, Tessa Plint, Diana K. Moreiras Reynaga, and Jean-François Millaire.

Their publications often appear in recurring venues that reflect their specialized research focus. These include:

  • Chemical Geology
  • Data in Brief
  • Zenodo (CERN European Organization for Nuclear Research)
  • Applied Clay Science
  • Scientific Reports

This profile presents a snapshot of Fred J. Longstaffe's scientific work as an active contributor to earth and planetary sciences and related disciplines, illustrating interdisciplinary research through isotope geochemistry, paleoecology, and impact crater studies.

Best Publications

  • Sources and sinks of microplastics in Canadian Lake Ontario nearshore, tributary and beach sediments

    Anika Ballent;Patricia L. Corcoran;Odile Madden;Paul A. Helm

  • Geochemical and Isotopic (O, Nd, Pb and Sr) Constraints on A-type Granite Petrogenesis Based on the Topsails Igneous Suite, Newfoundland Appalachians

    Joseph. B. Whalen;George A. Jenner;Frederick J. Longstaffe;Francine Robert

  • Proportions of convective and stratiform precipitation revealed in water isotope ratios

    Pradeep K. Aggarwal;Ulrike Romatschke;Luis Araguas-Araguas;Dagnachew Belachew

  • Origin and evolution of formation waters, Alberta Basin, Western Canada sedimentary Basin. I. Chemistry

    Cathy A. Connolly;Lynn M. Walter;H. Baadsgaard;Fred J. Longstaffe

  • Spatial, temporal and geochemical characteristics of Silurian collision-zone magmatism, Newfoundland Appalachians: An example of a rapidly evolving magmatic system related to slab break-off

    Joseph B. Whalen;Vicki J. McNicoll;Cees R. van Staal;C. Johan Lissenberg

  • Spatial distribution of microbial methane production pathways in temperate zone wetland soils: Stable carbon and hydrogen isotope evidence

    Edward R.C. Hornibrook;Frederick J. Longstaffe;William S. Fyfe

  • Exploring the effects of environment, physiology and diet on oxygen isotope ratios in ancient Nubian bones and teeth

    Christine White;Fred J. Longstaffe;Kimberley R. Law

  • Burning and boiling of modern deer bone: Effects on crystallinity and oxygen isotope composition of bioapatite phosphate

    L.E. Munro;F.J. Longstaffe;C.D. White

  • Influence of seabird guano and camelid dung fertilization on the nitrogen isotopic composition of field-grown maize (Zea mays)

    Paul Szpak;Jean-François Millaire;Christine D. White;Fred J. Longstaffe

  • Origin and evolution of formation waters, Alberta Basin, Western Canada Sedimentary Basin. II. Isotope systematics and water mixing

    Cathy A. Connolly;Lynn M. Walter;H. Baadsgaard;Fred J. Longstaffe

  • Carbon and Nitrogen Isotopic Survey of Northern Peruvian Plants: Baselines for Paleodietary and Paleoecological Studies

    Paul Szpak;Christine D. White;Fred J. Longstaffe;Jean-François Millaire

  • Isotopic evidence for Maya patterns of deer and dog use at Preclassic Colha

    Christine D. White;Mary E.D. Pohl;Henry P. Schwarcz;Fred J. Longstaffe

  • Geographic Identities of the Sacrificial Victims from the Feathered Serpent Pyramid, Teotihuacan: Implications for the Nature of State Power

    Christine D. White;Michael W. Spence;Fred J. Longstaffe;Hilary Stuart-Williams

  • Evolution of stable carbon isotope compositions for methane and carbon dioxide in freshwater wetlands and other anaerobic environments

    Edward R.C. Hornibrook;Frederick J. Longstaffe;William S. Fyfe

  • A Mainly Crustal Origin for Tonalitic Granitoid Rocks, Superior Province, Canada: Implications for Late Archean Tectonomagmatic Processes

    Joseph B. Whalen;John A. Percival;Vicki J. McNICOLL;Frederick J. Longstaffe

  • Testing the Nature of Teotihuacán Imperialism at Kaminaljuyú Using Phosphate Oxygen-Isotope Ratios

    Christine D. White;Michael W. Spence;Fred J. Longstaffe;Kimberley R. Law

  • Demography and ethnic continuity in the Tlailotlacan enclave of Teotihuacan: the evidence from stable oxygen isotopes

    Christine D. White;Michael W. Spence;Fred J. Longstaffe;Kimberley R. Law

  • Mineral precipitation by epilithic biofilms in the speed river, ontario, Canada.

    K. O. Konhauser;S. Schultze-Lam;F. G. Ferris;W. S. Fyfe

  • Geochemical and isotopic (Nd-O) evidence bearing on the origin of late- to post-orogenic high-K granitoid rocks in the Western Superior Province: implications for late Archean tectonomagmatic processes

    Joseph.B. Whalen;John A. Percival;Vicki J. McNicoll;Frederick J. Longstaffe

  • RESIDENTIAL HISTORIES OF THE HUMAN SACRIFICES AT THE MOON PYRAMID, TEOTIHUACAN: Evidence from oxygen and strontium isotopes

    Christine D. White;T. Douglas Price;Fred J. Longstaffe

  • Reply to comment by S. Waldron, A. Fallick, and A. Hall on "Spatial distribution of microbial methane production pathways in temperate zone wetland soils: Stable carbon and hydrogen isotope evidence"

    Erc Hornibrook;FJ Longstaffe;WS Fyfe

Frequent Co-Authors

Joseph B. Whalen
Joseph B. Whalen Geological Survey of Canada
William S. Fyfe
William S. Fyfe University of Western Ontario
Grant D. Zazula
Grant D. Zazula Simon Fraser University
George A. Jenner
George A. Jenner Memorial University of Newfoundland
Avner Ayalon
Avner Ayalon Hebrew University of Jerusalem
Sandra M. Barr
Sandra M. Barr Acadia University
Michael I. Bird
Michael I. Bird James Cook University
Ali Polat
Ali Polat University of Windsor
Aldo Shemesh
Aldo Shemesh Weizmann Institute of Science
Brian J. Fryer
Brian J. Fryer University of Windsor

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Related Online Degrees & Career Pathways

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Seniors looking to expand their knowledge or shift careers without a long commitment might consider one year degrees for seniors. These programs offer flexible learning opportunities that can complement an Earth Science background while keeping time investment reasonable.

Another relevant path includes information management and research roles that support scientific data handling. Pursuing ALA accredited MLIS programs helps students develop skills in managing digital and physical resources essential to Earth Science research institutions.

Considering the value of library and information science, investigating is a library science degree worth it highlights the benefits of combining scientific inquiry with information organization, aiding accessibility to critical data for environmental studies and policy development.

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