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Michael J. Melchin 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 Michael J. Melchin 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+

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

Michael J. Melchin 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 Michael J. Melchin 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+

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

Overview

Michael J. Melchin is affiliated with St. Francis Xavier University in Canada and has contributed extensively to the field of Earth and Planetary Sciences. Their research spans various domains, including paleontology, atmospheric science, geophysics, geology, and ecology.

Their work often focuses on the paleontology and stratigraphy of fossils, geology and paleoclimatology research, geological and geochemical analysis, isotope analysis in ecology, geological formations and processes, geological and geophysical studies, and geochemistry and elemental analysis.

Melchin has several recent publications, including:

  • A long-term record of early to mid-Paleozoic marine redox change (2021) in Science Advances
  • The Sedimentary Geochemistry and Paleoenvironments Project (2021) in Geobiology
  • The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank (2020) in Canadian Journal of Earth Sciences
  • Decoupling δ13Ccarb and δ13Corg at the onset of the Ireviken Carbon Isotope Excursion: Δ13C and organic carbon burial (forg) during a Silurian oceanic anoxic event (2020) in Global and Planetary Change
  • A high-resolution record of the late Hirnantian to Aeronian marine redox change in South China and its relationship with the record of graptolite biodiversity (2023) in Palaeogeography Palaeoclimatology Palaeoecology

Frequent co-authors in their research include:

  • Justin V. Strauss
  • Erik A. Sperling
  • Charles E. Mitchell
  • Tiffani Fraser
  • Benjamin C. Gill

The primary publication venues for Melchin's work are:

  • Abstracts with programs - Geological Society of America
  • Canadian Journal of Earth Sciences
  • Newsletters on Stratigraphy
  • Science Advances
  • Geobiology

Melchin has also contributed a book chapter or monograph published by Cambridge University Press titled What Does Graptolite Origination and Extinction Reveal about the Cause of the Late Ordovician Mass Extinction?, which is scheduled for release in 2025.

Best Publications

  • Environmental changes in the Late Ordovician–early Silurian: Review and new insights from black shales and nitrogen isotopes

    Michael J. Melchin;Charles E. Mitchell;Chris Holmden;Petr Štorch

  • The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System)

    Xu Chen;Jiayu Rong;Junxuan Fan;Renbin Zhan

  • Revised correlation of Silurian Provincial Series of North America with global and regional chronostratigraphic units and delta 13C(carb) chemostratigraphy

    Bradley D. Cramer;Carlton E. Brett;Michael J. Melchin;Peep Männik

  • The Silurian Period

    M. J. Melchin;R. A. Cooper;P. M. Sadler

  • Carbon isotope chemostratigraphy in Arctic Canada: Sea-level forcing of carbonate platform weathering and implications for Hirnantian global correlation

    Michael J. Melchin;Chris Holmden

  • Local and global perspectives on carbon and nitrogen cycling during the Hirnantian glaciation

    D.F. LaPorte;C. Holmden;W.P. Patterson;J.D. Loxton

  • High-resolution, early Paleozoic (Ordovician-Silurian) time scales

    Peter M. Sadler;Roger A. Cooper;Michael Melchin

  • Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China

    Junxuan Fan;Ping'an Peng;M.J. Melchin

  • PATTERNS AND PROCESSES OF LATEST ORDOVICIAN GRAPTOLITE EXTINCTION AND RECOVERY BASED ON DATA FROM SOUTH CHINA

    Chen Xu;Michael J. Melchin;H. David Sheets;Charles E. Mitchell

  • Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China

    Fan JunXuan (樊隽轩);Michael J. Melchin;Chen Xu (陈旭);Wang Yi (王怿)

  • HIRNANTIAN (LATEST ORDOVICIAN) GRAPTOLITES FROM THE UPPER YANGTZE REGION, CHINA

    Chen Xu;Fan Jun-Xuan;M. J. Melchin;C. E. Mitchell

  • Carbon isotope chemostratigraphy of the Llandovery in Arctic Canada: Implications for global correlation and sea-level change

    Michael J. Melchin;Chris Holmden

  • Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands

    Michael J. Melchin

  • Late Ordovician Extinction in the Graptoloidea

    M J Melchin;C E Mitchell

  • The Ordovician Period

    Unknown

  • Graptoloid diversity and disparity became decoupled during the Ordovician mass extinction

    David W. Bapst;Peter C. Bullock;Michael J. Melchin;H. David Sheets

  • Phylogenetic analysis reveals that Rhabdopleura is an extant graptolite

    Charles E. Mitchell;Michael J. Melchin;Chris B. Cameron;Jörg Maletz

  • Generalized graptolite zonal sequence defining Silurian time intervals for global paleogeographic studies

    Tatyana N. Koren;Alfred C. Lenz;David K. Loydell;Michael J. Melchin

  • Nd isotope records of late Ordovician sea-level change—Implications for glaciation frequency and global stratigraphic correlation

    C. Holmden;C.E. Mitchell;D.F. LaPorte;W.P. Patterson

  • A long-term record of early to mid-Paleozoic marine redox change.

    Erik A. Sperling;Michael J. Melchin;Tiffani Fraser;Richard G. Stockey

  • Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A.

    P. Štorch;C.E. Mitchell;S.C. Finney;M.J. Melchin

  • The Ordovician–Silurian boundary on Cornwallis and Truro islands, Arctic Canada: preliminary data

    Michael J. Melchin;Alexander D. McCracken;Fred J. Oliff

  • Phylogeny and Adaptive Radiation of the Neograptina (Graptoloida) During the Hirnantian Mass Extinction and Silurian Recovery

    M. J. Melchin;C. E. Mitchell;A. Naczk-Cameron;J. X. Fan

Frequent Co-Authors

Junxuan Fan
Junxuan Fan Nanjing University
Chris Holmden
Chris Holmden University of Saskatchewan
Erik A. Sperling
Erik A. Sperling Stanford University
Justin V. Strauss
Justin V. Strauss Dartmouth College
Peter M. Sadler
Peter M. Sadler University of California, Riverside
David K. Loydell
David K. Loydell University of Portsmouth
Roger A. Cooper
Roger A. Cooper GNS Science
Benjamin C. Gill
Benjamin C. Gill Virginia Tech
Nicholas J. Tosca
Nicholas J. Tosca University of Oxford
Ping'an Peng
Ping'an Peng Chinese Academy of Sciences

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