World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
42
Citations
6347
World Ranking
5283
National Ranking
265

Ian T. Graham 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 Ian T. Graham 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: 161 publications — 45th percentile

45% of scientists in this discipline score the same or lower.

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

Ian T. Graham 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 Ian T. Graham 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: 42 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Overview

Ian T. Graham is affiliated with the University of New South Wales in Australia and has contributed extensively to research in earth sciences and engineering, with a focus on geochemistry and petrology as well as geophysics. Their work spans fields including earth and planetary sciences and engineering, with significant emphasis on coal and its by-products and related geochemical analyses.

The scientist's research primarily explores topics such as:

  • Coal and Its By-products
  • Geochemistry and Elemental Analysis
  • Coal Properties and Utilization
  • Geological and Geochemical Analysis
  • Hydrocarbon exploration and reservoir analysis
  • Geochemistry and Geologic Mapping
  • Earthquake and tectonic studies

Frequently published in several scientific venues, Ian T. Graham's work appears most notably in:

  • International Journal of Coal Geology
  • Chemical Geology
  • Australian Journal of Earth Sciences
  • Ore Geology Reviews
  • Lithos

Their collaborative research includes partnerships with notable coauthors such as:

  • David French
  • Shifeng Dai
  • James C. Hower
  • Lei Zhao
  • Victor P. Nechaev

Notable recent papers authored or coauthored by Ian T. Graham include:

  • Recognition of peat depositional environments in coal: A review (2020), published in International Journal of Coal Geology
  • Modes of occurrence of elements in coal: A critical evaluation (2021), published in Earth-Science Reviews
  • Evidence for multiple sources for inorganic components in the Tucheng coal deposit, western Guizhou, China and the lack of critical-elements (2020), published in International Journal of Coal Geology
  • Mineralogical and geochemical characteristics of altered volcanic ashes (tonsteins and K-bentonites) from the latest Permian coal-bearing strata of western Guizhou Province, southwestern China (2021), published in International Journal of Coal Geology
  • Mineralogy and geochemistry of the Late Triassic coal from the Caotang mine, northeastern Sichuan Basin, China, with emphasis on the enrichment of the critical element lithium (2021), published in Ore Geology Reviews

Best Publications

  • A review of anomalous rare earth elements and yttrium in coal

    Shifeng Dai;Ian T. Graham;Colin R. Ward

  • Recognition of peat depositional environments in coal: A review

    Shifeng Dai;Achim Bechtel;Cortland F. Eble;Romeo M. Flores

  • Modes of occurrence of elements in coal: A critical evaluation

    Shifeng Dai;Robert B. Finkelman;Robert B. Finkelman;David French;James C. Hower

  • Tectonics and metallogeny of mainland Southeast Asia — A review and contribution

    Khin Zaw;Sebastien Meffre;Chun-Kit Lai;Clive Burrett

  • Organic associations of non-mineral elements in coal: A review

    Shifeng Dai;James C. Hower;Robert B. Finkelman;Robert B. Finkelman;Ian T. Graham

  • Altered volcanic ashes in coal and coal-bearing sequences: A review of their nature and significance

    Shifeng Dai;Colin R. Ward;Ian T. Graham;David French

  • Rare earth elements and yttrium in coal ash from the Luzhou power plant in Sichuan, Southwest China: Concentration, characterization and optimized extraction

    Zhen Wang;Shifeng Dai;Jianhua Zou;David French

  • Metalliferous coal deposits in East Asia (Primorye of Russia and South China): A review of geodynamic controls and styles of mineralization

    Shifeng Dai;Igor Yu. Chekryzhov;Vladimir V. Seredin;Victor P. Nechaev

  • Enrichment of critical elements (Nb-Ta-Zr-Hf-REE) within coal and host rocks from the Datanhao mine, Daqingshan Coalfield, northern China

    Lei Zhao;Shifeng Dai;Victor P. Nechaev;Evgeniya V. Nechaeva

  • Anomalies of rare metals in Lopingian super-high-organic-sulfur coals from the Yishan Coalfield, Guangxi, China

    Shifeng Dai;Panpan Xie;Colin R. Ward;Xiaoyun Yan

  • Cryptic sediment-hosted critical element mineralization from eastern Yunnan Province, southwestern China: Mineralogy, geochemistry, relationship to Emeishan alkaline magmatism and possible origin

    Lixin Zhao;Lixin Zhao;Shifeng Dai;Ian T. Graham;Xiao Li

  • Origin of a kaolinite-NH4-illite-pyrophyllite-chlorite assemblage in a marine-influenced anthracite and associated strata from the Jincheng Coalfield, Qinshui Basin, Northern China

    Lei Zhao;Colin R. Ward;David French;Ian T. Graham

  • Developing a radiometrically-dated chronologic sequence for Neogene biotic change in Australia, from the Riversleigh World Heritage Area of Queensland

    Jon Woodhead;Suzanne J. Hand;Michael Archer;Ian Graham

  • Determination of Eu concentrations in coal, fly ash and sedimentary rocks using a cation exchange resin and inductively coupled plasma mass spectrometry (ICP-MS)

    Xiaoyun Yan;Shifeng Dai;Ian T. Graham;Xin He

  • Enrichment origin of critical elements (Li and rare earth elements) and a Mo-U-Se-Re assemblage in Pennsylvanian anthracite from the Jincheng Coalfield, southeastern Qinshui Basin, northern China

    Lei Zhao;Shifeng Dai;Victor P. Nechaev;Evgeniya V. Nechaeva

  • Mineralogical composition of Late Permian coal seams in the Songzao Coalfield, southwestern China

    Lei Zhao;Lei Zhao;Colin R. Ward;David French;Ian T. Graham

  • A model for Nb–Zr–REE–Ga enrichment in Lopingian altered alkaline volcanic ashes: Key evidence of H-O isotopes

    Shifeng Dai;Victor P. Nechaev;Victor P. Nechaev;Igor Yu. Chekryzhov;Igor Yu. Chekryzhov;Lixin Zhao

  • Advances in our understanding of the gem corundum deposits of the West Pacific continental margins intraplate basaltic fields

    Ian Graham;Ian Graham;Lin Sutherland;Lin Sutherland;Khin Zaw;Victor Nechaev

  • Mineralogy of the volcanic-influenced Great Northern coal seam in the Sydney Basin, Australia

    Lei Zhao;Colin R. Ward;David French;Ian T. Graham

  • Archaeological explorations in El Peten, Guatemala

    Ian Graham

  • Major and Trace Element Geochemistry of Coals and Intra-Seam Claystones from the Songzao Coalfield, SW China

    Lei Zhao;Colin R. Ward;David French;Ian T. Graham

  • Gem-corundum megacrysts from east Australian basalt fields: trace elements, oxygen isotopes and origins∗

    Frederick L Sutherland;Khin Zaw;Sebastien Meffre;Gaston Giuliani

Frequent Co-Authors

Shifeng Dai
Shifeng Dai China University of Mining and Technology
James C. Hower
James C. Hower University of Kentucky
Khin Zaw
Khin Zaw University of Tasmania
Colin R. Ward
Colin R. Ward University of New South Wales
Elena Belousova
Elena Belousova Macquarie University
Horst Zwingmann
Horst Zwingmann Kyoto University
Gaston Giuliani
Gaston Giuliani University of Lorraine
Baruch Spiro
Baruch Spiro Natural History Museum
Anthony E. Fallick
Anthony E. Fallick University of Glasgow
Richard Armstrong
Richard Armstrong Australian National University

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