World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
64
Citations
15787
World Ranking
1478
National Ranking
661

John W. Morgan 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 John W. Morgan sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 137 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

John W. Morgan 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 John W. Morgan sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 64 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Overview

John W. Morgan is affiliated with the University of Maryland, College Park in the United States. Their research primarily focuses on Environmental Science, with specific attention to subfields such as Nature and Landscape Conservation, Ecology, Evolution, Behavior and Systematics, Endocrinology, Diabetes and Metabolism, Ecology, and Environmental Engineering.

The main topics covered in Morgan's work include:

  • Ecology and Vegetation Dynamics Studies
  • Plant and animal studies
  • Wildlife Ecology and Conservation
  • Groundwater flow and contamination studies
  • Diabetes Treatment and Management
  • Diabetes Management and Research
  • Diabetes and associated disorders

Morgan's publication record features articles spanning multiple scientific disciplines, with research appearing in several frequent publication venues:

  • Communications Biology
  • Nature Ecology & Evolution
  • Abstracts with programs - Geological Society of America
  • Journal of the American Pharmacists Association
  • Nature Communications

Recent papers authored or co-authored by Morgan include:

  • Forb diversity globally is harmed by nutrient enrichment but can be rescued by large mammalian herbivory, 2025, Communications Biology
  • Author Correction: Widening global variability in grassland biomass since the 1980s, 2024, Nature Ecology & Evolution
  • MULTIVARIATE STATISTICAL ANALYSES OF MAJOR IONS AND TRACE METALS REVEAL ROCK-WATER INTERACTION PATTERNS IN AN ALPINE WATERSHED, 2023, Abstracts with programs - Geological Society of America
  • Use of glucagon-like peptide 1 receptor agonist to sustain patients off basal-bolus insulin regimens, 2024, Journal of the American Pharmacists Association
  • Local nutrient addition drives plant diversity losses but not biotic homogenization in global grasslands, 2025, Nature Communications

Their collaboration network includes several frequent co-authors who have contributed to multiple publications, including:

  • Erika I. Hersch-Green
  • Eric W. Seabloom
  • Elizabeth T. Borer
  • Pedro M. Tognetti
  • Miguel N. Bugalho

Best Publications

  • Re-Os Ages of Group IIA, IIIA, IVA, and IVB Iron Meteorites

    Michael I. Smoliar;Richard J. Walker;John W. Morgan

  • The remarkable Re-Os chronometer in molybdenite : how and why it works

    H. J. Stein;R. J. Markey;J. W. Morgan;J. L. Hannah

  • Preparation and certification of Re-Os dating reference materials: Molybdenites HLP and JDC

    Andao Du;Shuqi Wu;Dezhong Sun;Shuxian Wang

  • Highly precise and accurate Re-Os ages for molybdenite from the East Qinling molybdenum belt, shaanxi Province, China

    H. J. Stein;R. J. Markey;J. W. Morgan;A. Du

  • Chemical Composition of Earth, Venus, and Mercury

    John W. Morgan;Edward Anders

  • Chemical composition of Mars

    John W Morgan;Edward Anders;Edward Anders

  • Ultramafic xenoliths: Clues to Earth's late accretionary history

    John W. Morgan

  • The osmium isotopic composition of the Earth's primitive upper mantle

    T. Meisel;T. Meisel;R. J. Walker;J. W. Morgan

  • Highly siderophile elements in chondrites

    M.F. Horan;R.J. Walker;J.W. Morgan;J.N. Grossman

  • 190Pt–186Os and 187Re–187Os systematics of abyssal peridotites

    Alan D Brandon;Alan D Brandon;Jonathan E Snow;Richard J Walker;John W Morgan;John W Morgan

  • Comparative 187Re-187Os systematics of chondrites: Implications regarding early solar system processes

    R.J Walker;M.F Horan;J.W Morgan;H Becker

  • Re-Os ages for Archean molybdenite and pyrite, Kuittila-Kivisuo, Finland and Proterozoic molybdenite, Kabeliai, Lithuania: testing the chronometer in a metamorphic and metasomatic setting

    H. J. Stein;K. Sundblad;R. J. Markey;J. W. Morgan

  • Highly precise Re-Os dating for molybdenite using alkaline fusion and NTIMS.

    Richard Markey;Holly Stein;Holly Stein;John Morgan

  • Composition of the earth's upper mantle. I - Siderophile trace elements in ultramafic nodules

    J.W Morgan;G.A Wandless;R.K Petrie;A.J Irving

  • RE-OS ISOTOPIC EVIDENCE FOR AN ENRICHED-MANTLE SOURCE FOR THE NORIL'SK-TYPE, ORE-BEARING INTRUSIONS, SIBERIA

    R.J Walker;J.W Morgan;M.F Horan;G.K Czamanske

  • 186Os–187Os systematics of Hawaiian picrites

    Alan D. Brandon;Marc D. Norman;Richard J. Walker;John W. Morgan;John W. Morgan

  • Re-Os Dating of Low-Level Highly Radiogenic (LLHR) Sulfides: The Harnäs Gold Deposit, Southwest Sweden, Records Continental-Scale Tectonic Events

    Holly J. Stein;John W. Morgan;Anders Scherstén

  • Applications of the 190Pt186Os isotope system to geochemistry and cosmochemistry

    Richard J. Walker;John W. Morgan;John W. Morgan;Ellyn S. Beary;Michael I. Smoliar

  • Global change effects on plant communities are magnified by time and the number of global change factors imposed

    Kimberly J. Komatsu;Meghan L. Avolio;Nathan P. Lemoine;Forest Isbell

  • Osmium-187 enrichment in some plumes: evidence for core-mantle interaction?

    Richard J. Walker;John W. Morgan;Mary F. Horan

  • Abundance of 17 trace elements in carbonaceous chondrites.

    Urs Krähenbühl;John W. Morgan;R. Ganapathy;Edward Anders

  • Chemical fractionations in meteorites—VI. Accretion temperatures of H-, LL- and E-chondrites, from abundance of volatile trace elements

    J.C. Laul;R. Ganapathy;Edward Anders;John W. Morgan

Frequent Co-Authors

Edward Anders
Edward Anders University of Chicago
Richard J. Walker
Richard J. Walker University of Maryland, College Park
Mary F. Horan
Mary F. Horan Carnegie Institution for Science
Holly J. Stein
Holly J. Stein University of Oslo
David D Lambert
David D Lambert Griffith University
Steven B. Shirey
Steven B. Shirey Carnegie Institution for Science
Alan D. Brandon
Alan D. Brandon University of Houston
Richard W. Carlson
Richard W. Carlson Carnegie Institution for Science
Jeffrey N. Grossman
Jeffrey N. Grossman United States Geological Survey
Anthony J. Naldrett
Anthony J. Naldrett University of Toronto

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