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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 38 6433 5957 334 305 136 6049

Richard M. Friedman publications per year

The chart shows the history of publications by Richard M. Friedman between 1963 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Richard M. Friedman published across 63 years, from 1963 to 2025, averaging 2.3 papers a year. Output peaked at 11 publications in 2014. 3 of the 144 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1963 to 2025. Vertical axis: number of publications, 0 to 11. Peak 11 publications in 2014. 1963: 2 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 1 publication 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 2 publications 1989: 0 publications 1990: 2 publications 1991: 1 publication 1992: 4 publications 1993: 2 publications 1994: 0 publications 1995: 5 publications 1996: 1 publication 1997: 1 publication 1998: 2 publications 1999: 5 publications 2000: 6 publications 2001: 2 publications 2002: 1 publication 2003: 3 publications 2004: 2 publications 2005: 2 publications 2006: 7 publications 2007: 5 publications 2008: 6 publications 2009: 6 publications 2010: 4 publications 2011: 5 publications 2012: 6 publications 2013: 5 publications 2014: 11 publications 2015: 4 publications 2016: 1 publication 2017: 10 publications 2018: 1 publication 2019: 6 publications 2020: 5 publications 2021: 9 publications 2022: 4 publications 2023: 2 publications 2024: 2 publications 2025: 1 publication
1963 2025

144 publications in total across all disciplines

View publications per year as a table
Richard M. Friedman: publications per year, 1963 to 2025
Year Publications
1963 2
1964 0
1965 0
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 1
1984 0
1985 0
1986 0
1987 0
1988 2
1989 0
1990 2
1991 1
1992 4
1993 2
1994 0
1995 5
1996 1
1997 1
1998 2
1999 5
2000 6
2001 2
2002 1
2003 3
2004 2
2005 2
2006 7
2007 5
2008 6
2009 6
2010 4
2011 5
2012 6
2013 5
2014 11
2015 4
2016 1
2017 10
2018 1
2019 6
2020 5
2021 9
2022 4
2023 2
2024 2
2025 1
Total 144
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Richard M. Friedman 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 Richard M. Friedman 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, 128–137 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: 136 publications — 31st percentile

31% 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
128–137 557 136
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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Richard M. Friedman 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 Richard M. Friedman 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, 38 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: 38 D-Index — 31st percentile

31% 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 38
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

Richard M. Friedman is affiliated with the University of British Columbia in Canada. Their research primarily focuses on Earth and Planetary Sciences, with notable contributions in Computer Science. Within these fields, they have concentrated on subfields including Geophysics, Artificial Intelligence, Paleontology, Atmospheric Science, and Geology.

Their work encompasses a range of topics related to geological and geochemical analysis, geochemistry and geologic mapping, and high-pressure geophysics and materials. Additional interests include paleontology and stratigraphy of fossils, earthquake and tectonic studies, geology and paleoclimatology research, and broader geological studies and exploration.

Richard M. Friedman has published several papers in various prominent venues. Some of the recent publications include:

  • Dating the Bushveld Complex: Timing of Crystallization, Duration of Magmatism, and Cooling of the World's Largest Layered Intrusion and Related Rocks (2020, Journal of Petrology)
  • New evidence for a long Rhaetian from a Panthalassan succession (Wrangell Mountains, Alaska) and regional differences in carbon cycle perturbations at the Triassic-Jurassic transition (2021, Earth and Planetary Science Letters)
  • Latest Triassic-Early Jurassic Stikine-Yukon-Tanana terrane collision and the onset of accretion in the Canadian Cordillera: Insights from Hazelton Group detrital zircon provenance and arc-back-arc configuration (2022, Geosphere)
  • Cretaceous to Oligocene magmatic and tectonic evolution of the western Alaska Range: Insights from U-Pb and 40Ar/39Ar geochronology (2020, Geosphere)
  • Timing of Magmatism and Skarn Formation at the Limon, Guajes, and Media Luna Gold ± Copper Skarn Deposits at Morelos, Guerrero State, Mexico (2022, Economic Geology)

The frequent co-authors collaborating with Richard M. Friedman include Corey J. Wall, Susan M. Karl, Paul W. Layer, James K. Mortensen, and James S. Scoates. These collaborations indicate ongoing partnerships in their research projects.

Their publications have appeared in various venues, with multiple contributions in Geosphere, Canadian Journal of Earth Sciences, Journal of Petrology, Economic Geology, and Abstracts with programs - Geological Society of America.

Best Publications

  • High-precision isotopic characterization of USGS reference materials by TIMS and MC-ICP-MS

    Dominique Weis;Bruno Kieffer;Claude Maerschalk;Jane Barling

  • U-Th-Pb geochronology of the Coast Mountains batholith in north-coastal British Columbia: Constraints on age and tectonic evolution

    G. Gehrels;M. Rusmore;G. Woodsworth;M. Crawford

  • PRECISE AGE OF THE PLATINIFEROUS MERENSKY REEF, BUSHVELD COMPLEX, SOUTH AFRICA, BY THE U-Pb ZIRCON CHEMICAL ABRASION ID-TIMS TECHNIQUE

    James S. Scoates;Richard M. Friedman

  • Cenozoic to Recent plate configurations in the Pacific Basin: Ridge subduction and slab window magmatism in western North America

    J.K. Madsen;D.J. Thorkelson;R.M. Friedman;D.D. Marshall

  • Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot

    Ray Wells;David Bukry;Richard Friedman;Douglas Pyle

  • Timing the end-Triassic mass extinction: First on land, then in the sea?

    József Pálfy;James K. Mortensen;Elizabeth S. Carter;Paul L. Smith

  • U-Pb (zircon) and geochemical constraints on the age, origin, and evolution of Paleozoic arc magmas in the Oyu Tolgoi porphyry Cu-Au district, southern Mongolia

    Alan J. Wainwright;Richard M. Tosdal;Joseph L. Wooden;Frank K. Mazdab

  • Magmatic relationships and ages between adakites, magnesian andesites and Nb-enriched basalt-andesites from Hispaniola: Record of a major change in the Caribbean island arc magma sources

    J. Escuder Viruete;F. Contreras;G. Stein;P. Urien

  • Evidence for rapid weathering response to climatic warming during the Toarcian Oceanic Anoxic Event.

    Theodore R. Them;Theodore R. Them;Benjamin C. Gill;David Selby;Darren R. Gröcke

  • The Stillwater Complex: Integrating Zircon Geochronological and Geochemical Constraints on the Age, Emplacement History and Crystallization of a Large, Open-System Layered Intrusion

    Corey J. Wall;Corey J. Wall;James S. Scoates;Dominique Weis;Richard M. Friedman

  • Evidence for protracted High Arctic large igneous province magmatism in the central Sverdrup Basin from stratigraphy, geochronology, and paleodepths of saucer-shaped sills

    Carol A. Evenchick;William J. Davis;Jean H. Bédard;Nathan Hayward

  • The Coast Belt Thrust System: Evidence of Late Cretaceous shortening in southwest British Columbia

    Unknown

  • Magmatic relationships and ages of Caribbean Island arc tholeiites, boninites and related felsic rocks, Dominican Republic

    J. Escuder Viruete;A. Díaz de Neira;P.P. Hernáiz Huerta;J. Monthel

  • Age and Paleotectonic Setting of Volcanogenic Massive Sulfide Deposits in the Guerrero Terrane of Central Mexico: Constraints from U-Pb Age and Pb Isotope Studies

    James K. Mortensen;Brian V. Hall;Thomas Bissig;Richard M. Friedman

  • Archean zircons in Cretaceous strata of the western Canadian Cordillera: The “Baja B.C.” hypothesis fails a “crucial test”

    J. Brian Mahoney;Peter S. Mustard;James W. Haggart;Richard M. Friedman

  • Reduced granitic magmas in an arc setting: The Catface porphyry Cu–Mo deposit of the Paleogene Cascade Arc

    C.M. Smith;D. Canil;S.M. Rowins;R. Friedman

  • Magmatism in the southeastern Anatolian orogenic belt: transition from arc to post-collisional setting in an evolving orogen

    Ilkay Kuscu;Ilkay Kuscu;Gonca Gencalioglu Kuscu;Gonca Gencalioglu Kuscu;Richard M. Tosdal;Thomas D. Ulrich

  • Coherent French Range blueschist: Subduction to exhumation in <2.5 m.y.?

    M.G. Mihalynuk;P. Erdmer;E.D. Ghent;F. Cordey

  • In situ location and U-Pb dating of small zircon grains in igneous rocks using laser ablation–inductively coupled plasma–quadrupole mass spectrometry

    Patrick J. Sack;Ron F. Berry;Sebastien Meffre;Trevor J. Falloon

  • Crustal evolution along a seismic section across the Grenville Province (western Quebec)

    J. Martignole;A.J. Calvert;R. Friedman;P. Reynolds

  • Caribbean island-arc rifting and back-arc basin development in the Late Cretaceous: Geochemical, isotopic and geochronological evidence from Central Hispaniola

    J. Escuder Viruete;M. Joubert;P. Urien;R. Friedman

Frequent Co-Authors

James S. Scoates
James S. Scoates University of British Columbia
James K. Mortensen
James K. Mortensen University of British Columbia
Dominique Weis
Dominique Weis University of British Columbia
Richard M. Tosdal
Richard M. Tosdal University of British Columbia
Paul W. Layer
Paul W. Layer University of Alaska Fairbanks
Carlos O. Limarino
Carlos O. Limarino University of Buenos Aires
Andrés Pérez-Estaún
Andrés Pérez-Estaún Spanish National Research Council
Peter J. Haeussler
Peter J. Haeussler United States Geological Survey
József Pálfy
József Pálfy Eötvös Loránd University
Dwight C. Bradley
Dwight C. Bradley United States Geological Survey

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