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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 89 289 247 31 26 293 25376

Randall R. Parrish publications per year

The chart shows the history of publications by Randall R. Parrish between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Randall R. Parrish published across 50 years, from 1976 to 2025, averaging 6.1 papers a year. Output peaked at 19 publications in 2003. 3 of the 304 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2003. 1976: 2 publications 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 2 publications 1981: 1 publication 1982: 1 publication 1983: 3 publications 1984: 3 publications 1985: 2 publications 1986: 2 publications 1987: 12 publications 1988: 6 publications 1989: 8 publications 1990: 9 publications 1991: 11 publications 1992: 18 publications 1993: 8 publications 1994: 3 publications 1995: 6 publications 1996: 8 publications 1997: 5 publications 1998: 4 publications 1999: 4 publications 2000: 7 publications 2001: 13 publications 2002: 6 publications 2003: 19 publications 2004: 13 publications 2005: 6 publications 2006: 15 publications 2007: 11 publications 2008: 18 publications 2009: 8 publications 2010: 8 publications 2011: 6 publications 2012: 3 publications 2013: 8 publications 2014: 8 publications 2015: 9 publications 2016: 7 publications 2017: 2 publications 2018: 2 publications 2019: 6 publications 2020: 4 publications 2021: 2 publications 2022: 0 publications 2023: 1 publication 2024: 1 publication 2025: 2 publications
1976 2025

304 publications in total across all disciplines

View publications per year as a table
Randall R. Parrish: publications per year, 1976 to 2025
Year Publications
1976 2
1977 0
1978 0
1979 1
1980 2
1981 1
1982 1
1983 3
1984 3
1985 2
1986 2
1987 12
1988 6
1989 8
1990 9
1991 11
1992 18
1993 8
1994 3
1995 6
1996 8
1997 5
1998 4
1999 4
2000 7
2001 13
2002 6
2003 19
2004 13
2005 6
2006 15
2007 11
2008 18
2009 8
2010 8
2011 6
2012 3
2013 8
2014 8
2015 9
2016 7
2017 2
2018 2
2019 6
2020 4
2021 2
2022 0
2023 1
2024 1
2025 2
Total 304
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Randall R. Parrish 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 Randall R. Parrish 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, 288–297 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: 293 publications — 86th percentile

86% 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
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
288–297 119 293
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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Randall R. Parrish 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 Randall R. Parrish 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, 89 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: 89 D-Index — 97th percentile

97% 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
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 89
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

Randall R. Parrish is affiliated with the British Geological Survey in the United Kingdom. Their research spans multiple aspects of Earth and Planetary Sciences, with a focus on geological, geochemical, and geophysical studies.

Their publication record includes a range of papers across various scientific venues, reflecting a diverse research interest. Notable recent works include:

  • Resolving whether inhalation of depleted uranium contributed to Gulf War Illness using high-sensitivity mass spectrometry, 2021, Scientific Reports
  • Using U-Pb carbonate dating to constrain the timing of extension and fault reactivation within the Bristol Channel Basin, SW England, 2024, Journal of the Geological Society
  • Sedimentary provenance in continental rifts: U-Pb detrital zircon, Nd and Sr isotopes and lithogeochemistry of the Eocene alluvial sandstones of the Resende Basin, SE-Brazil, 2023, Sedimentary Geology
  • Clusters of flowstone ages are not supported by statistical evidence, 2021, Nature
  • THE INFLUENCE OF ALLOGENIC PROCESSES ON THE BENGAL FAN SEDIMENT ARCHIVE, 2020, Abstracts with programs - Geological Society of America

Frequent coauthors in Parrish's work include:

  • Catherine Mottram
  • Joe Connolly
  • M. A. Anderson
  • Gregory D. Price
  • David J. Sanderson

Parrish's primary fields of study fall under Earth and Planetary Sciences. Their work is particularly connected to subfields such as:

  • Geophysics
  • Health, Toxicology and Mutagenesis
  • Artificial Intelligence
  • Geology
  • Psychiatry and Mental health

The main topics addressed in Parrish's research encompass:

  • Geological and Geochemical Analysis
  • Geochemistry and Geologic Mapping
  • Earthquake and tectonic studies
  • Geological and Geophysical Studies
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Climate Change and Health Impacts
  • Air Quality and Health Impacts

Publication venues where Parrish's research has appeared include:

  • Journal of the Geological Society
  • Scientific Reports
  • Sedimentary Geology
  • Nature
  • Abstracts with programs - Geological Society of America

This body of work demonstrates interdisciplinary interests spanning geosciences and health-related environmental toxicology, contributing to the understanding of geological processes as well as their impacts on human health.

Best Publications

  • U–Pb dating of monazite and its application to geological problems

    Randall R. Parrish

  • Timing of India‐Asia collision: Geological, biostratigraphic, and palaeomagnetic constraints

    Yani Najman;Erwin Appel;Marcelle Boudagher-Fadel;Paul Bown

  • Tectonic evolution of the central Annapurna Range, Nepalese Himalayas

    K. V. Hodges;R. R. Parrish;R. R. Parrish;M. P. Searle

  • Metrology and traceability of U-Pb isotope dilution geochronology (EARTHTIME Tracer Calibration Part I)

    Daniel Condon;Blair Schoene;Noah McLean;Samuel Bowring

  • Shisha Pangma leucogranite, south Tibetan Himalaya: Field relations, geochemistry, age, origin, and emplacement

    M. P. Searle;R. R. Parrish;R. R. Parrish;R. R. Parrish;K. V. Hodges;K. V. Hodges;A. Hurford;A. Hurford

  • Isotopic constraints on the age and provenance of the Lesser and Greater Himalayan sequences, Nepalese Himalaya

    Randall R. Parrish;V. Hodges

  • Himalayan metamorphic sequence as an orogenic channel: Insight from Bhutan

    Djordje Grujic;Lincoln S Hollister;Randall R Parrish

  • An improved micro-capsule for zircon dissolution in UPb geochronology

    Randall R. Parrish

  • Simultaneous miocene extension and shortening in the himalayan orogen.

    K. V. Hodges;R. R. Parrish;T. B. Housh;D. R. Lux

  • A calcite reference material for LA-ICP-MS U-Pb geochronology

    Nick M. W. Roberts;E. Troy Rasbury;Randall R. Parrish;Christopher J. Smith

  • Identification of inherited radiogenic Pb in monazite and its implications for U–Pb systematics

    Peter Copeland;Randall R. Parrish;T. Mark Harrison

  • Common-Pb corrected in situ U–Pb accessory mineral geochronology by LA-MC-ICP-MS

    Matthew S. A. Horstwood;Gavin L. Foster;Gavin L. Foster;Randall R. Parrish;Randall R. Parrish;Stephen R. Noble

  • The structural geometry, metamorphic and magmatic evolution of the Everest massif, High Himalaya of Nepal-South Tibet

    M.P. Searle;R.L. Simpson;R.D. Law;R.R. Parrish

  • Eocene extensional tectonics and geochronology of the Southern Omineca Belt, British Columbia and Washington

    Randall R. Parrish;Sharon D. Carr;David L. Parkinson

  • Uranium - Lead Analytical Techniques At the Geochronology Laboratory, Geological Survey of Canada

    R R Parrish;J C Roddick;W D Loveridge;R W Sullivan

  • Crustal thickening leading to exhumation of the Himalayan Metamorphic core of central Nepal: Insight from U‐Pb Geochronology and 40Ar/39Ar Thermochronology

    Laurent Godin;Randall R. Parrish;Richard L. Brown;Kip V. Hodges

  • Petrology and Cooling Rates of the Valhalla Complex, British Columbia, Canada

    Frank S. Spear;Randall R. Parrish

  • Geophysics and geochronology of the crystalline basement of the Alberta Basin, western Canada

    G. M. Ross;R. R. Parrish;M. E. Villeneuve;S. A. Bowring

  • Exhumation of the Main Central Thrust from Lower Crustal Depths, Eastern Bhutan Himalaya

    C. G. Daniel;L. S. Hollister;R. R. Parrish;Djordje Grujic

  • A-type granite and adakitic magmatism association in Songpan Garze fold belt, eastern Tibetan Plateau: Implication for lithospheric delamination

    Hong-Fei Zhang;Randall Parrish;Li Zhang;Wang-Chun Xu

Frequent Co-Authors

Matthew S.A. Horstwood
Matthew S.A. Horstwood British Geological Survey
Michael P. Searle
Michael P. Searle University of Oxford
Nick M.W. Roberts
Nick M.W. Roberts British Geological Survey
David J. Waters
David J. Waters University of Oxford
Nigel Harris
Nigel Harris The Open University
Daniel J. Condon
Daniel J. Condon British Geological Survey
Clare J. Warren
Clare J. Warren The Open University
Stephen R. Noble
Stephen R. Noble British Geological Survey
Yani Najman
Yani Najman Lancaster University
Gavin L. Foster
Gavin L. Foster University of Southampton

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