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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 35 7512 6952 2564 2266 127 5792

John L. Isbell publications per year

The chart shows the history of publications by John L. Isbell between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John L. Isbell published across 41 years, from 1985 to 2025, averaging 3.2 papers a year. Output peaked at 12 publications in 2018. 5 of the 130 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2018. 1985: 1 publication 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 2 publications 1991: 0 publications 1992: 3 publications 1993: 0 publications 1994: 1 publication 1995: 0 publications 1996: 3 publications 1997: 3 publications 1998: 1 publication 1999: 2 publications 2000: 0 publications 2001: 3 publications 2002: 2 publications 2003: 2 publications 2004: 0 publications 2005: 0 publications 2006: 1 publication 2007: 2 publications 2008: 9 publications 2009: 0 publications 2010: 6 publications 2011: 0 publications 2012: 4 publications 2013: 5 publications 2014: 8 publications 2015: 1 publication 2016: 8 publications 2017: 11 publications 2018: 12 publications 2019: 9 publications 2020: 3 publications 2021: 9 publications 2022: 5 publications 2023: 9 publications 2024: 2 publications 2025: 3 publications
1985 2025

130 publications in total across all disciplines

View publications per year as a table
John L. Isbell: publications per year, 1985 to 2025
Year Publications
1985 1
1986 0
1987 0
1988 0
1989 0
1990 2
1991 0
1992 3
1993 0
1994 1
1995 0
1996 3
1997 3
1998 1
1999 2
2000 0
2001 3
2002 2
2003 2
2004 0
2005 0
2006 1
2007 2
2008 9
2009 0
2010 6
2011 0
2012 4
2013 5
2014 8
2015 1
2016 8
2017 11
2018 12
2019 9
2020 3
2021 9
2022 5
2023 9
2024 2
2025 3
Total 130
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John L. Isbell 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 L. Isbell sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 118–127 publications, is where this scientist sits. 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
38–47 publications 603+

This scientist: 127 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540 127
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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John L. Isbell 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 L. Isbell sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 35 D-Index, is where this scientist sits. 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: 35 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372 35
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Overview

John L. Isbell is affiliated with the University of Wisconsin-Milwaukee in the United States and specializes in Earth and Planetary Sciences. Their research spans multiple subfields including Atmospheric Science, Earth-Surface Processes, Paleontology, Geochemistry and Petrology, and Geology. Isbell's work concentrates on geological formations, paleoclimatology, paleontology, stratigraphy, and geochemical analysis.

Their recent publications cover critical topics related to the late Paleozoic Ice Age and associated geological and climatic changes. Notable papers include:

  • Evaluation of physical and chemical proxies used to interpret past glaciations with a focus on the late Paleozoic Ice Age (2021, Earth-Science Reviews)
  • The late Paleozoic Ice Age along the southwestern margin of Gondwana: Facies models, age constraints, correlation and sequence stratigraphic framework (2020, Journal of South American Earth Sciences)
  • Records of chemical weathering and volcanism linked to paleoclimate transition during the Late Paleozoic Icehouse (2022, Global and Planetary Change)
  • Reassessing a glacial landscape developed during terminal glaciation of the Late Paleozoic Ice Age in Uruguay (2023, Sedimentary Geology)
  • Provenance of late Paleozoic glacial/post-glacial deposits in the eastern Chaco-Paraná Basin, Uruguay and southernmost Paraná Basin, Brazil (2020, Journal of South American Earth Sciences)

Isbell frequently collaborates with other researchers, including:

  • Nicholas D. Fedorchuk
  • Eduardo Menozzo da Rosa
  • Fernando Farias Vesely
  • Eduardo L.M. Rosa
  • Libby R. W. Ives

The scientist's work has been published repeatedly in venues such as:

  • Abstracts with programs - Geological Society of America
  • Journal of South American Earth Sciences
  • Sedimentary Geology
  • Boletim Paranaense de Geociências
  • Earth-Science Reviews

The main research topics investigated by Isbell include:

  • Geological formations and processes
  • Geology and Paleoclimatology Research
  • Paleontology and Stratigraphy of Fossils
  • Geochemistry and Elemental Analysis
  • Geological and Geochemical Analysis
  • Geochemistry and Geologic Mapping
  • Geological and Geophysical Studies

John L. Isbell's research contributes to understanding ancient climatic and geological phenomena, with particular emphasis on glaciations and icehouse conditions during the late Paleozoic era. The interdisciplinary nature of their studies spans geochemistry, sedimentology, paleontology, and stratigraphy, integrating field observations and geochemical proxies to interpret Earth's past environments.

Best Publications

  • CO2-Forced Climate and Vegetation Instability During Late Paleozoic Deglaciation

    Isabel P. Montañez;Neil J. Tabor;Deb Niemeier;William A. DiMichele

  • Timing of late Paleozoic glaciation in Gondwana: Was glaciation responsible for the development of northern hemisphere cyclothems?

    John L. Isbell;Molly F. Miller;Keri L. Wolfe;Paul A. Lenaker

  • The late Paleozoic ice age—A review of current understanding and synthesis of global climate patterns

    Christopher R Fielding;Tracy D Frank;John L Isbell

  • Glacial paradoxes during the late Paleozoic ice age: Evaluating the equilibrium line altitude as a control on glaciation

    John L. Isbell;Lindsey C. Henry;Erik L. Gulbranson;Erik L. Gulbranson;Carlos Oscar Limarino;Carlos Oscar Limarino

  • High-Precision U-Pb Calibration of Carboniferous Glaciation and Climate History, Paganzo Group, NW Argentina

    Erik L. Gulbranson;Isabel P. Montañez;M. D. Schmitz;Carlos Oscar Limarino;Carlos Oscar Limarino

  • A paleoclimatic review of southern South America during the late Paleozoic: A record from icehouse to extreme greenhouse conditions

    Carlos Oscar Limarino;Silvia Nelida Cesari;Luis Antonio Spalletti;Arturo Cesar Taboada

  • Late Devonian and Early Carboniferous glacial records of South America

    Mário Vicente Caputo;José Henrique Gonçalves de Melo;Maurice Streel;John L Isbell

  • Resolving the late Paleozoic ice age in time and space

    Christopher R. Fielding;Tracy D. Frank;John L. Isbell

  • Reevaluation of the timing and extent of late Paleozoic glaciation in Gondwana: Role of the Transantarctic Mountains

    John L. Isbell;Paul A. Lenaker;Rosemary A. Askin;Molly F. Miller

  • Permian-Triassic Transantarctic basin

    James W. Collinson;John L. Isbell;David H. Elliot;Molly F. Miller

  • Carboniferous-Permian glaciation in the main Karoo Basin, South Africa: Stratigraphy, depositional controls, and glacial dynamics

    John L Isbell;Douglas I Cole;Octavian Catuneanu

  • A new stratigraphic framework built on U-Pb single-zircon TIMS ages and implications for the timing of the penultimate icehouse (Paraná Basin, Brazil)

    Neil Patrick Griffis;Roland Mundil;Isabel Patricia Montañez;John Isbell

  • Tetrapod and Large Burrows of Uncertain Origin in Triassic High Paleolatitude Floodplain Deposits, Antarctica

    Molly F. Miller;Stephen T. Hasiotis;Loren E. Babcock;John L. Isbell

  • Coupled stratigraphic and U-Pb zircon age constraints on the late Paleozoic icehouse-to-greenhouse turnover in south-central Gondwana

    Neil Patrick Griffis;Neil Patrick Griffis;Isabel Patricia Montañez;Roland Mundil;Jon Richey

  • Permian glacigenic deposits in the Transantarctic Mountains, Antarctica

    John L Isbell;Zelenda J Koch;Gina M Szablewski;Paul A Lenaker

  • Evaluation of physical and chemical proxies used to interpret past glaciations with a focus on the late Paleozoic Ice Age

    John L. Isbell;Fernando F. Vesely;Eduardo L.M. Rosa;Kathryn N. Pauls

  • The Kukri Erosion Surface; a reassessment of its relationship to rocks of the Beacon Supergroup in the central Transantarctic Mountains, Antarctica

    John L. Isbell

  • Tetrapod Burrows From the Triassic Of Antarctica

    Christian A. Sidor;Molly F. Miller;John L. Isbell

  • Mid-Carboniferous deglaciation of the Protoprecordillera, Argentina recorded in the Agua de Jagüel palaeovalley

    Lindsey C. Henry;John L. Isbell;Carlos O. Limarino;Lindsay J. McHenry

  • Carboniferous glacigenic deposits of the proto-Precordillera of west-central Argentina

    Lindsey C Henry;John L Isbell;Carlos O Limarino

  • Paleozoic-Mesozoic crayfish from Antarctica: Earliest evidence of freshwater decapod crustaceans

    Loren E. Babcock;Molly F. Miller;John L. Isbell;James W. Collinson

Frequent Co-Authors

Isabel P. Montañez
Isabel P. Montañez University of California, Davis
Roland Mundil
Roland Mundil Berkeley Geochronology Center
Qing-Zhu Yin
Qing-Zhu Yin University of California, Davis
Carlos O. Limarino
Carlos O. Limarino University of Buenos Aires
Sergio A. Marenssi
Sergio A. Marenssi University of Buenos Aires
Christopher R. Fielding
Christopher R. Fielding University of Connecticut
Tracy D. Frank
Tracy D. Frank University of Connecticut
Loren E. Babcock
Loren E. Babcock The Ohio State University
Thomas N. Taylor
Thomas N. Taylor University of Kansas
Stephen T. Hasiotis
Stephen T. Hasiotis University of Kansas

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