| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Earth Science | 50 | 3404 | 3117 | 1359 | 1209 | 200 | 9423 |
The chart shows the history of publications by Mark K. Reagan between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Mark K. Reagan published across 45 years, from 1981 to 2025, averaging 4.7 papers a year. Output peaked at 15 publications in 2008. 7 of the 211 publications appeared in the last two years.
211 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 0 |
| 1986 | 0 |
| 1987 | 3 |
| 1988 | 0 |
| 1989 | 1 |
| 1990 | 0 |
| 1991 | 0 |
| 1992 | 2 |
| 1993 | 0 |
| 1994 | 1 |
| 1995 | 4 |
| 1996 | 5 |
| 1997 | 0 |
| 1998 | 4 |
| 1999 | 7 |
| 2000 | 3 |
| 2001 | 8 |
| 2002 | 4 |
| 2003 | 4 |
| 2004 | 5 |
| 2005 | 6 |
| 2006 | 11 |
| 2007 | 3 |
| 2008 | 15 |
| 2009 | 5 |
| 2010 | 5 |
| 2011 | 3 |
| 2012 | 10 |
| 2013 | 7 |
| 2014 | 10 |
| 2015 | 13 |
| 2016 | 13 |
| 2017 | 12 |
| 2018 | 2 |
| 2019 | 13 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 5 |
| Total | 211 |
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 Mark K. Reagan sits on this spectrum.
This scientist: 200 publications — 63rd percentile
63% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 603 publications or more.
| 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 | |
| 128–137 | 557 | |
| 138–147 | 491 | |
| 148–157 | 495 | |
| 158–167 | 458 | |
| 168–177 | 490 | |
| 178–187 | 414 | |
| 188–197 | 401 | |
| 198–207 | 333 | 200 |
| 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 |
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 Mark K. Reagan sits on this spectrum.
This scientist: 50 D-Index — 64th percentile
64% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 106 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 144 | |
| 31 | 215 | |
| 32 | 278 | |
| 33 | 379 | |
| 34 | 366 | |
| 35 | 372 | |
| 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 | 50 |
| 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 |
Mark K. Reagan is affiliated with the University of Iowa in the United States and focuses primarily on Earth and Planetary Sciences. Their research spans several subfields including Geophysics, Geology, Environmental Chemistry, Atmospheric Science, and Ocean Engineering.
Their work extensively covers topics such as Geological and Geochemical Analysis, earthquake and tectonic studies, High-pressure geophysics and materials, Geological and Geophysical Studies, Methane Hydrates and Related Phenomena, Seismic Imaging and Inversion Techniques, and Geology and Paleoclimatology Research.
Among the recent papers authored or co-authored by Mark K. Reagan are:
Frequent co-authors in Mark K. Reagan's research include:
Mark K. Reagan has published in several recurring scientific venues, including:
Mark K. Reagan;Osamu Ishizuka;Robert J. Stern;Katherine A. Kelley
Osamu Ishizuka;Osamu Ishizuka;Kenichiro Tani;Mark K. Reagan;Kyoko Kanayama
R.J. Stern;M. Reagan;O. Ishizuka;Y. Ohara
Jeffrey A. Dorale;Luis A. González;Mark K. Reagan;David A. Pickett
Osamu Ishizuka;Jun Ichi Kimura;Yi B. Li;Robert J. Stern
Mark K. Reagan;James B. Gill
Roy Larick;Russell L. Ciochon;Yahdi Zaim;Sudijono
Osamu Ishizuka;Osamu Ishizuka;Kenichiro Tani;Mark K. Reagan
Simon Turner;Tracy Rushmer;Mark K. Reagan;Jean-François Moyen
Mark K. Reagan;Julian A. Pearce;Katerina Petronotis;Renat R. Almeev
Mark K. Reagan;Daniel E. Heaton;Mark D. Schmitz;Julian A. Pearce
Julian A. Pearce;Mark K. Reagan
John W. Shervais;Mark Reagan;Emily A. Haugen;Emily A. Haugen;Renat R. Almeev
Rhawn F. Denniston;Luis A. González;Yemane Asmerom;Ram H. Sharma
Mark K. Reagan;Arend Meijer
R Ciochon;V T Long;R Larick;L González
Mark K. Reagan;William C. McClelland;Guillaume Girard;Kathleen R. Goff
Mark K Reagan;julie D Morris;Eileen A Herrstrom;Michael T Murrell
John M. Eiler;Michael A.J. Carr;Mark K. Reagan;Edward Stolper
Maryjo Brounce;Maryjo Brounce;Katherine A. Kelley;Elizabeth Cottrell;Mark K. Reagan
R. G. Baker;E. A. Bettis;D. P. Schwert;D. G. Horton
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These diverse degree options highlight how interdisciplinary study can enrich a career in Earth Science, making it a dynamic and accessible field for students from various backgrounds.
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