World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
52
Citations
10842
World Ranking
3015
National Ranking
1230

Bradley B. Sageman 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 Bradley B. Sageman 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: 175 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Bradley B. Sageman 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 Bradley B. Sageman 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: 52 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America
  • Fellow of the Geological Society of America

Overview

Bradley B. Sageman is affiliated with Northwestern University in the United States. Their research primarily spans the field of Earth and Planetary Sciences, with a significant focus on subfields including Paleontology, Atmospheric Science, Oceanography, Geophysics, and Artificial Intelligence.

The scientific work of Sageman addresses various topics related to geology and paleoclimatology, with notable attention to paleontology and stratigraphy of fossils, geological and geochemical analysis, marine biology and ecology, and studies on ocean acidification effects and responses. These research interests are reflected across several published papers and frequent publication venues.

Some recent publications by Sageman include: "Regional chronostratigraphic synthesis of the Cenomanian-Turonian Oceanic Anoxic Event 2 (OAE2) interval, Western Interior Basin (USA): New Re-Os chemostratigraphy and 40Ar/39Ar geochronology" (2020, Geological Society of America Bulletin), "Zinc isotope evidence for paleoenvironmental changes during Cretaceous Oceanic Anoxic Event 2" (2020, Geology), "Abrupt episode of mid-Cretaceous ocean acidification triggered by massive volcanism" (2023, Nature Geoscience), "Data-model comparison reveals key environmental changes leading to Cenomanian-Turonian Oceanic Anoxic Event 2" (2020, Earth-Science Reviews), and "Neritic ecosystem response to Oceanic Anoxic Event 2 in the Cretaceous Western Interior Seaway, USA" (2020, Palaeogeography Palaeoclimatology Palaeoecology).

Sageman regularly publishes in venues such as Abstracts with programs - Geological Society of America, Zenodo (CERN European Organization for Nuclear Research), Geology, Palaeogeography Palaeoclimatology Palaeoecology, and Geological Society of America Bulletin.

The scientist has collaborated frequently with researchers including Andrew D. Jacobson, Matthew T. Hurtgen, Matthew M. Jones, David Selby, and Luca Podrecca.

Among the honors received, Sageman is recognized as a Fellow of the Geological Society of America.

  • Earth and Planetary Sciences
  • Paleontology
  • Atmospheric Science
  • Oceanography
  • Geophysics
  • Artificial Intelligence

  • Geology and Paleoclimatology Research
  • Paleontology and Stratigraphy of Fossils
  • Geological and Geochemical Analysis
  • Marine Biology and Ecology Research
  • Marine and environmental studies
  • Ocean Acidification Effects and Responses

  • Regional chronostratigraphic synthesis of the Cenomanian-Turonian Oceanic Anoxic Event 2 (OAE2) interval, Western Interior Basin (USA): New Re-Os chemostratigraphy and 40Ar/39Ar geochronology (2020, Geological Society of America Bulletin)
  • Zinc isotope evidence for paleoenvironmental changes during Cretaceous Oceanic Anoxic Event 2 (2020, Geology)
  • Abrupt episode of mid-Cretaceous ocean acidification triggered by massive volcanism (2023, Nature Geoscience)
  • Data-model comparison reveals key environmental changes leading to Cenomanian-Turonian Oceanic Anoxic Event 2 (2020, Earth-Science Reviews)
  • Neritic ecosystem response to Oceanic Anoxic Event 2 in the Cretaceous Western Interior Seaway, USA (2020, Palaeogeography Palaeoclimatology Palaeoecology)

  • Andrew D. Jacobson
  • Matthew T. Hurtgen
  • Matthew M. Jones
  • David Selby
  • Luca Podrecca

  • Abstracts with programs - Geological Society of America
  • Zenodo (CERN European Organization for Nuclear Research)
  • Geology
  • Palaeogeography Palaeoclimatology Palaeoecology
  • Geological Society of America Bulletin

  • Fellow of the Geological Society of America

Best Publications

  • MARINE BLACK SHALES: Depositional Mechanisms and Environments of Ancient Deposits

    Michael A. Arthur;Bradley B. Sageman

  • A tale of shales: the relative roles of production, decomposition, and dilution in the accumulation of organic-rich strata, Middle–Upper Devonian, Appalachian basin

    Bradley B Sageman;Adam E Murphy;Josef P Werne;Charles A Ver Straeten

  • Black shale deposition and faunal overturn in the Devonian Appalachian Basin: Clastic starvation, seasonal water-column mixing, and efficient biolimiting nutrient recycling

    Adam E. Murphy;Bradley B. Sageman;David J. Hollander;Timothy W. Lyons

  • Orbital time scale and new C-isotope record for Cenomanian-Turonian boundary stratotype

    Bradley B. Sageman;Stephen R. Meyers;Michael A. Arthur

  • An integrated assessment of a “type euxinic” deposit: Evidence for multiple controls on black shale deposition in the middle Devonian Oatka Creek formation

    Josef P. Werne;Bradley B. Sageman;Timothy W. Lyons;David J. Hollander

  • Geochemistry of Fine-grained Sediments and Sedimentary Rocks

    B. B. Sageman;T. W. Lyons

  • Integrated Quantitative Stratigraphy of the Cenomanian-Turonian Bridge Creek Limestone Member Using Evolutive Harmonic Analysis and Stratigraphic Modeling

    Stephen R. Meyers;Bradley B. Sageman;Linda A. Hinnov

  • Intercalibration of radioisotopic and astrochronologic time scales for the Cenomanian-Turonian boundary interval, Western Interior Basin, USA

    Stephen R. Meyers;Sarah E. Siewert;Brad S. Singer;Bradley B. Sageman

  • Carbon sequestration activated by a volcanic CO 2 pulse during Ocean Anoxic Event 2

    Richard S. Barclay;Jennifer C. McElwain;Bradley B. Sageman

  • Marine 187Os/188Os isotope stratigraphy reveals the interaction of volcanism and ocean circulation during Oceanic Anoxic Event 2

    Alice D.C. Du Vivier;David Selby;Bradley B. Sageman;Ian Jarvis

  • Eutrophication by decoupling of the marine biogeochemical cycles of C, N, and P: A mechanism for the Late Devonian mass extinction

    Adam E. Murphy;Bradley B. Sageman;David J. Hollander

  • Volcanic triggering of a biogeochemical cascade during Oceanic Anoxic Event 2

    Derek D. Adams;Matthew T. Hurtgen;Bradley B. Sageman

  • Estuarine circulation in the Turonian Western Interior seaway of North America

    Rudy Slingerland;Lee R. Kump;Michael A. Arthur;Peter J. Fawcett;Peter J. Fawcett

  • Molluscan biostratigraphy of the Cretaceous Western Interior Basin, North America

    E. G. Kauffman;B. B. Sageman;J. I. Kirkland;W. P. Elder

  • Quantification of deep-time orbital forcing by average spectral misfit

    Stephen R. Meyers;Bradley B. Sageman

  • Obliquity forcing of organic matter accumulation during Oceanic Anoxic Event 2

    Stephen R. Meyers;Bradley B. Sageman;Michael A. Arthur

  • Evidence for Milankovitch Periodicities in Cenomanian-Turonian Lithologic and Geochemical Cycles, Western Interior U.S.A.

    B. B. Sageman;Jonathan Rich;M. A. Arthur;G. E. Birchfield

  • Sea-Level Control on Source-Rock Development: Perspectives from the Holocene Black Sea, the Mid-Cretaceous Western Interior Basin of North America, and the Late Devonian Appalachian Basin

    Michael A. Arthur;Bradley B. Sageman

  • Cenomanian To Campanian Carbon Isotope Chemostratigraphy from the Western Interior Basin, U.S.A

    Young Ji Joo;Bradley B. Sageman

  • Mudrock sequence stratigraphy: A multi-proxy (sedimentological, paleobiological and geochemical) approach, Devonian Appalachian Basin

    Charles A. Ver Straeten;Carlton E. Brett;Bradley B. Sageman

  • When do black shales tell molybdenum isotope tales

    Gwyneth Gordon;T. W. Lyons;G. L. Arnold;J. Roe

Frequent Co-Authors

Stephen R. Meyers
Stephen R. Meyers University of Wisconsin–Madison
Andrew D. Jacobson
Andrew D. Jacobson Northwestern University
David Selby
David Selby Durham University
Michael A. Arthur
Michael A. Arthur Pennsylvania State University
Timothy W. Lyons
Timothy W. Lyons University of California, Riverside
Brad S. Singer
Brad S. Singer University of Wisconsin–Madison
David J. Hollander
David J. Hollander University of South Florida
Jennifer C. McElwain
Jennifer C. McElwain Trinity College Dublin
Brian R. Jicha
Brian R. Jicha University of Wisconsin–Madison
Daniel J. Condon
Daniel J. Condon British Geological Survey

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