World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
31
Citations
3459
World Ranking
8975
National Ranking
453

Karem Azmy 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 Karem Azmy 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: 133 publications — 30th percentile

30% of scientists in this discipline score the same or lower.

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

Karem Azmy 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 Karem Azmy 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: 31 D-Index — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Overview

Karem Azmy is affiliated with Memorial University of Newfoundland in Canada and has contributed extensively to the field of Earth and Planetary Sciences with a particular focus on paleontology, geochemistry, and geophysical studies. Their research output includes a significant number of publications categorized under various subfields such as Paleontology, Geochemistry and Petrology, Mechanics of Materials, Geophysics, and Atmospheric Science.

Azmy's recent scholarly works cover diverse aspects of geological and geochemical phenomena, emphasizing the study of ancient sedimentary systems and reservoir quality. Notable papers include:

  • Fault-controlled hydrothermal dolomitization of Middle Permian in southeastern Sichuan Basin, SW China, and its temporal relationship with the Emeishan Large Igneous Province: New insights from multi-geochemical proxies and carbonate U-Pb dating (2022), published in Sedimentary Geology
  • Impact of diagenesis on reservoir quality of the lacustrine mixed carbonate-siliciclastic-volcaniclastic rocks in China (2022), published in Journal of Asian Earth Sciences
  • U-Pb geochronology and clumped isotope thermometry study of Neoproterozoic dolomites from China (2022), published in Sedimentology
  • Diagenesis of the Vaca Muerta Formation, Neuquén Basin: Evidence from petrography, microthermometry and geochemistry (2020), published in Marine and Petroleum Geology
  • Decrypting geochemical signatures in subsurface Niger delta sediments: Implication for provenance, weathering, and paleo-environmental conditions (2021), published in Marine and Petroleum Geology

Their main fields of study encompass a total of 120 publications in Earth and Planetary Sciences, with key concentration in subfields such as:

  • Paleontology (43 publications)
  • Geochemistry and Petrology (31 publications)
  • Mechanics of Materials (22 publications)
  • Geophysics (17 publications)
  • Atmospheric Science (16 publications)

Azmy's core research topics include:

  • Paleontology and Stratigraphy of Fossils
  • Geochemistry and Elemental Analysis
  • Hydrocarbon exploration and reservoir analysis
  • Geological and Geochemical Analysis
  • Geology and Paleoclimatology Research
  • Geological and Geophysical Studies
  • Geochemistry and Geologic Mapping

The researcher has published prolifically in several key journals, indicating a strong presence in the field's literature. Frequent publication venues include:

  • Marine and Petroleum Geology (21 publications)
  • Palaeogeography Palaeoclimatology Palaeoecology (5 publications)
  • SSRN Electronic Journal (5 publications)
  • Chemical Geology (4 publications)
  • Sedimentology (3 publications)

Karem Azmy has collaborated extensively with several researchers, maintaining frequent co-authorships with:

  • Anqing Chen (7 joint publications)
  • Guoqiang Luan (7 joint publications)
  • Huaguo Wen (6 joint publications)
  • Chengyan Lin (6 joint publications)
  • Huachuan Jiang (5 joint publications)

This comprehensive collaboration and publication record illustrate the scientist's active engagement in advancing research in sedimentology, geochemistry, paleontology, and hydrocarbon reservoir studies.

Best Publications

  • 87Sr/86Sr, δ13C and δ18O evolution of Phanerozoic seawater

    Ján Veizer;Ján Veizer;Davin Ala;Karem Azmy;Peter Bruckschen

  • 87 Sr/ 86 Sr,δ 13 Candδ 18 Oevolution of Phanerozoic seawater

    Ján Veizer;Davin Ala;Karem Azmy;Peter Bruckschen

  • Coupling of surface temperatures and atmospheric CO2 concentrations during the Palaeozoic era.

    Rosemarie E. Came;John M. Eiler;Ján Veizer;Karem Azmy

  • Oxygen isotope evolution of Phanerozoic seawater

    Ján Veizer;Ján Veizer;Peter Bruckschen;Frank Pawellek;Andreas Diener

  • Strontium isotope stratigraphy: potential resolution and event correlation

    Ján Veizer;Ján Veizer;Dieter Buhl;Andreas Diener;Stefan Ebneth

  • Oxygen and carbon isotopic composition of Silurian brachiopods: Implications for coeval seawater and glaciations

    Karem Azmy;Ján Veizer;Michael G. Bassett;Paul Copper

  • Oxygenation of the mid-Proterozoic atmosphere: clues from chromium isotopes in carbonates

    G.J. Gilleaudeau;R. Frei;A.J. Kaufman;L.C. Kah

  • Chemostratigraphic correlation of Neoproterozoic successions in South America

    Aroldo Misi;Alan J. Kaufman;Jàn Veizer;Jàn Veizer;Kelli Powis

  • Biogenic and abiogenic low-Mg calcite (bLMC and aLMC): Evaluation of seawater-REE composition, water masses and carbonate diagenesis

    Karem Azmy;Uwe Brand;Paul J. Sylvester;Sara A. Gleeson

  • The end‐Permian mass extinction: A rapid volcanic CO2 and CH4‐climatic catastrophe

    Uwe Brand;Renato Posenato;Rosemarie Came;Hagit Affek

  • Dolomitization and isotope stratigraphy of the Vazante Formation, São Francisco Basin, Brazil

    Karem Azmy;Jan Veizer;Jan Veizer;Aroldo Misi;Tolentino Flávio de Oliveira

  • Origin of Lower Ordovician dolomites in eastern Laurentia: Controls on porosity and implications from geochemistry

    Ebube Azomani;Karem Azmy;Nigel Blamey;Nigel Blamey;Uwe Brand

  • Global correlation of the Vazante Group, São Francisco Basin, Brazil: Re-Os and U-Pb radiometric age constraints

    Karem Azmy;Brian Kendall;Robert A. Creaser;Larry Heaman

  • Oxygen isotopes and MgCO3 in brachiopod calcite and a new paleotemperature equation

    Uwe Brand;K. Azmy;M.A. Bitner;A. Logan

  • Diagenetic evaluation of a Pennsylvanian carbonate succession (Bird Spring Formation, Arrow Canyon, Nevada, U.S.A.) — 1: Brachiopod and whole rock comparison

    Uwe Brand;Ganqing Jiang;Karem Azmy;James Bishop

  • Magnesium-isotope and REE compositions of Lower Ordovician carbonates from eastern Laurentia: Implications for the origin of dolomites and limestones

    Karem Azmy;Denis Lavoie;Zhengrong Wang;Uwe Brand

  • Diagenesis and origin of calcite cement in the Flemish Pass Basin sandstone reservoir (Upper Jurassic): Implications for porosity development

    Di Xiong;Karem Azmy;Nigel J.F. Blamey

  • Is mid-late Paleozoic ocean-water chemistry coupled with epeiric seawater isotope records?

    Uwe Brand;Jun Ichi Tazawa;Hiroyoshi Sano;Karem Azmy

  • Silurian strontium isotope stratigraphy

    Karem Azmy;Jan Veizer;Jan Veizer;Bernd Wenzel;Michael G. Bassett

  • Heavy metal contamination from gold mining recorded in Porites lobata skeletons, Buyat-Ratototok district, North Sulawesi, Indonesia.

    Evan N. Edinger;Karem Azmy;Wilfredo Diegor;P. Raja Siregar

  • Uranium isotope evidence for limited euxinia in mid-Proterozoic oceans

    Geoffrey J. Gilleaudeau;Geoffrey J. Gilleaudeau;Stephen J. Romaniello;Genming Luo;Alan J. Kaufman

  • Dolomitization of the Lower Ordovician Aguathuna Formation carbonates, Port au Port Peninsula, western Newfoundland, Canada: implications for a hydrocarbon reservoir

    Karem AzmyK. Azmy;Denis LavoieD. Lavoie;Ian KnightI. Knight;Guoxiang ChiG. Chi

  • Isotope stratigraphy of the Lapa Formation, São Francisco Basin, Brazil: Implications for Late Neoproterozoic glacial events in South America

    Karem Azmy;Alan J. Kaufman;Aroldo Misi;Tolentino Flávio de Oliveira

  • Neotethys seawater chemistry and temperature at the dawn of the end Permian mass extinction

    Claudio Garbelli;Lucia Angiolini;Uwe Brand;Shu-zhong Shen

  • Methane Hydrate: Killer cause of Earth's greatest mass extinction

    Uwe Brand;Nigel Blamey;Claudio Garbelli;Erika Griesshaber

  • High-resolution chemostratigraphy of the Cambrian-Ordovician GSSP: Enhanced global correlation tool

    Karem Azmy;Svend Stouge;Uwe Brand;Gabriella Bagnoli

  • Dolomitization of the lower Ordovician Catoche formation: Implications for hydrocarbon exploration in western Newfoundland

    J. Conliffe;K. Azmy;M. Greene

  • Origin of bedding-parallel fibrous calcite veins in lacustrine black shale: A case study from Dongying Depression, Bohai Bay Basin

    Guoqiang Luan;Chunmei Dong;Karem Azmy;Chengyan Lin

  • 87 Srr 86 Sr, d 13 C and d 18 O evolution of Phanerozoic seawater

    Jan Veizer;Davin Ala;Karem Azmy;Peter Bruckschen

Frequent Co-Authors

Uwe Brand
Uwe Brand Brock University
Ján Veizer
Ján Veizer University of Ottawa
Alan J. Kaufman
Alan J. Kaufman University of Maryland, College Park
Denis Lavoie
Denis Lavoie Geological Survey of Canada
Lucia Angiolini
Lucia Angiolini University of Milan
Dieter Buhl
Dieter Buhl Ruhr University Bochum
Christoph Korte
Christoph Korte University of Copenhagen
Erika Griesshaber
Erika Griesshaber Ludwig-Maximilians-Universität München
Linda C. Kah
Linda C. Kah University of Tennessee at Knoxville
Harald Strauss
Harald Strauss University of Münster

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