World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
39
Citations
9622
World Ranking
5998
National Ranking
2159

Clifford C. Walters 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 Clifford C. Walters 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: 114 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

Clifford C. Walters 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 Clifford C. Walters 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: 39 D-Index — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Overview

Clifford C. Walters is affiliated with ExxonMobil in the United States and has a research focus spanning engineering and chemistry, with significant contributions in mechanics of materials and analytical chemistry. Their body of work addresses topics related to hydrocarbon exploration and reservoir analysis, petroleum processing and analysis, as well as geochemistry and geologic mapping.

The scientist's research covers several main themes, including:

  • Hydrocarbon exploration and reservoir analysis
  • Petroleum processing and analysis
  • Geochemistry and geologic mapping
  • Methane hydrates and related phenomena
  • Atmospheric and environmental gas dynamics
  • Enhanced oil recovery techniques
  • Coal properties and utilization

Walters has published in multiple journals, with frequent contributions to:

  • Marine and Petroleum Geology
  • Organic Geochemistry
  • SSRN Electronic Journal
  • Energy & Fuels
  • International Journal of Hydrogen Energy

Notable recent publications include:

  • "Mechanisms of Asphaltene Aggregation: Puzzles and a New Hypothesis," 2020, Energy & Fuels
  • "H2, CH4 and CO2 adsorption on Cameo coal: Insights into the role of cushion gas in hydrogen geological storage," 2023, International Journal of Hydrogen Energy
  • "Modern analytical techniques are improving our ability to follow the fate of spilled oil in the environment," 2022, Current Opinion in Chemical Engineering
  • "Geochemistry of oils and condensates from the lower Eagle Ford formation, South Texas. Part 3: Basin modeling," 2023, Marine and Petroleum Geology
  • "Hydrocarbon transformations in sediments from the Cathedral Hill hydrothermal vent complex at Guaymas Basin, Gulf of California - A chemometric study of shallow seep architecture," 2020, Organic Geochemistry

Frequent collaborators of Walters include:

  • Xun Sun
  • Tongwei Zhang
  • Xiaoqiang Li
  • G. Todd Ventura
  • Jeffrey S. Seewald

The combination of Walters' research areas and publication venues reflects an interdisciplinary approach to hydrocarbon systems and environmental chemistry, integrating engineering methods with chemical analysis techniques. Their work also encompasses emerging fields such as artificial intelligence applied within materials mechanics and environmental contexts.

Best Publications

  • The Biomarker Guide

    K. E. Peters;C. C. Walters;J. M. Moldowan

  • Biomarkers and isotopes in the environment and human history

    Kenneth E. Peters;Clifford C. Walters;J. Michael Moldowan

  • Direct characterization of kerogen by x-ray and solid-state **13c nuclear magnetic resonance methods

    S. R. Kelemen;M. Afeworki;M. L. Gorbaty;M. Sansone

  • Microbial alteration of the acidic and neutral polar NSO compounds revealed by Fourier transform ion cyclotron resonance mass spectrometry

    Sunghwan Kim;Lateefah A. Stanford;Ryan P. Rodgers;Alan G. Marshall

  • Acidic and neutral polar NSO compounds in Smackover oils of different thermal maturity revealed by electrospray high field Fourier transform ion cyclotron resonance mass spectrometry

    Christine A Hughey;Ryan P Rodgers;Alan G Marshall;Clifford C Walters

  • Pore Architecture and Connectivity in Gas Shale

    Hubert E. King;Aaron P. R. Eberle;Clifford C. Walters;Chris E. Kliewer

  • Effect of hydrocarbon type on thermochemical sulfate reduction

    Tongwei Zhang;Geoffrey S. Ellis;Kang shi Wang;Clifford C. Walters

  • Predicting generation and expulsion of paraffinic oil from vitrinite-rich coals

    S. D. Killops;R. H. Funnell;R. P. Suggate;R. Sykes

  • Enrichment, resolution, and identification of nickel porphyrins in petroleum asphaltene by cyclograph separation and atmospheric pressure photoionization Fourier transform ion cyclotron resonance mass spectrometry.

    Kuangnan Qian;Kathleen E. Edwards;Anthony S. Mennito;Clifford C. Walters

  • Evaluation of kinetic uncertainty in numerical models of petroleum generation

    Kenneth E. Peters;Clifford C. Walters;Paul J. Mankiewicz

  • Petroleum generation kinetics: Single versus multiple heating-ramp open-system pyrolysisMultiple-Ramp Kinetics

    Kenneth E. Peters;Alan K. Burnham;Clifford C. Walters

  • Mechanisms of Asphaltene Aggregation: Puzzles and a New Hypothesis

    Yunlong Zhang;Michael Siskin;Murray R. Gray;Clifford C. Walters

  • Biomarkers and isotopes in petroleum systems and earth history

    Kenneth E. Peters;Clifford C. Walters;J. Michael Moldowan

  • Characterization of solid bitumens originating from thermal chemical alteration and thermochemical sulfate reduction

    Simon R. Kelemen;Clifford C. Walters;Peter J. Kwiatek;Howard Freund

  • Petroleum systems in the Jiangling-Dangyang area, Jianghan Basin, China

    Kenneth E. Peters;Alan E. Cunningham;Clifford C. Walters;Jiang Jigang

  • Thiadiamondoids as proxies for the extent of thermochemical sulfate reduction

    Zhibin Wei;Clifford C. Walters;J. Michael Moldowan;Paul J. Mankiewicz

  • Petroleum alteration by thermochemical sulfate reduction – A comprehensive molecular study of aromatic hydrocarbons and polar compounds

    Clifford C. Walters;Frank C. Wang;Kuangnan Qian;Chunping Wu

  • Thermal transformations of nitrogen and sulfur forms in peat related to coalification

    S. R. Kelemen;M. Afeworki;M. L. Gorbaty;P. J. Kwiatek

  • Petroleum expulsion. Part 3. A model of chemically driven fractionation during expulsion of petroleum from kerogen

    S. R. Kelemen;C. C. Walters;D. Ertas;H. Freund

  • Geochemical signatures of thermochemical sulfate reduction in controlled hydrous pyrolysis experiments

    Tongwei Zhang;Geoffrey S. Ellis;Clifford C. Walters;Simon R. Kelemen

  • Natural occurrence of higher thiadiamondoids and diamondoidthiols in a deep petroleum reservoir in the Mobile Bay gas field

    Zhibin Wei;Paul Mankiewicz;Clifford Walters;Kuangnan Qian

  • Distinguishing solid bitumens formed by thermochemical sulfate reduction and thermal chemical alteration

    Simon R. Kelemen;Clifford C. Walters;Peter J. Kwiatek;Mobae Afeworki

Frequent Co-Authors

Kenneth E. Peters
Kenneth E. Peters Stanford University
Simon R. Kelemen
Simon R. Kelemen ExxonMobil (United States)
J. Michael Moldowan
J. Michael Moldowan Stanford University
Tullis C. Onstott
Tullis C. Onstott Princeton University
Barry Freifeld
Barry Freifeld Lawrence Berkeley National Laboratory
Robert K. Nelson
Robert K. Nelson Woods Hole Oceanographic Institution
Ryan P. Rodgers
Ryan P. Rodgers Florida State University
Alan K. Burnham
Alan K. Burnham Stanford University
Yongchun Tang
Yongchun Tang California Institute of Technology
Tongwei Zhang
Tongwei Zhang The University of Texas at Austin

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Related Online Degrees & Career Pathways

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For those interested specifically in information organization, a library science degree offers pathways to careers in environmental documentation centers, museums, and academic institutions. These interdisciplinary options complement an Earth Science background.

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