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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Earth Science 101 125 63 322 43047

Robert N. Clayton publications per year

The chart shows the history of publications by Robert N. Clayton between 1958 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert N. Clayton published across 69 years, from 1958 to 2026, averaging 5 papers a year. Output peaked at 17 publications in 1983. 2 of the 345 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1958 to 2026. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 1983. 1958: 2 publications 1959: 2 publications 1960: 0 publications 1961: 3 publications 1962: 1 publication 1963: 2 publications 1964: 1 publication 1965: 4 publications 1966: 2 publications 1967: 1 publication 1968: 6 publications 1969: 5 publications 1970: 2 publications 1971: 8 publications 1972: 10 publications 1973: 5 publications 1974: 2 publications 1975: 6 publications 1976: 9 publications 1977: 11 publications 1978: 11 publications 1979: 4 publications 1980: 7 publications 1981: 4 publications 1982: 2 publications 1983: 17 publications 1984: 8 publications 1985: 5 publications 1986: 10 publications 1987: 6 publications 1988: 12 publications 1989: 8 publications 1990: 8 publications 1991: 10 publications 1992: 9 publications 1993: 10 publications 1994: 12 publications 1995: 14 publications 1996: 6 publications 1997: 7 publications 1998: 8 publications 1999: 6 publications 2000: 9 publications 2001: 8 publications 2002: 7 publications 2003: 13 publications 2004: 4 publications 2005: 5 publications 2006: 5 publications 2007: 7 publications 2008: 6 publications 2009: 3 publications 2010: 5 publications 2011: 1 publication 2012: 0 publications 2013: 2 publications 2014: 1 publication 2015: 1 publication 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 0 publications 2023: 0 publications 2024: 0 publications 2025: 0 publications 2026: 2 publications
1958 2026

345 publications in total across all disciplines

View publications per year as a table
Robert N. Clayton: publications per year, 1958 to 2026
Year Publications
1958 2
1959 2
1960 0
1961 3
1962 1
1963 2
1964 1
1965 4
1966 2
1967 1
1968 6
1969 5
1970 2
1971 8
1972 10
1973 5
1974 2
1975 6
1976 9
1977 11
1978 11
1979 4
1980 7
1981 4
1982 2
1983 17
1984 8
1985 5
1986 10
1987 6
1988 12
1989 8
1990 8
1991 10
1992 9
1993 10
1994 12
1995 14
1996 6
1997 7
1998 8
1999 6
2000 9
2001 8
2002 7
2003 13
2004 4
2005 5
2006 5
2007 7
2008 6
2009 3
2010 5
2011 1
2012 0
2013 2
2014 1
2015 1
2016 0
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 0
2024 0
2025 0
2026 2
Total 345
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Robert N. Clayton 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 Robert N. Clayton 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, 318–327 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: 322 publications — 89th percentile

89% 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
298–307 120
308–317 107
318–327 93 322
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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Robert N. Clayton 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 Robert N. Clayton 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, 101 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: 101 D-Index — 99th percentile

99% 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
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3 101
102 9
103 4
104 6
105 6
106+ 98
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Research.com Recognitions

  • 2004 - US President's National Medal of Science "For his contributions to geochemistry and cosmochemistry that provided major insights into the evolution of the solar system through his discovery of non-mass-dependent isotope shifts in meteorites.", Presented by President George W. Bush in a White House East Room ceremony on February 13, 2006.
  • 1996 - Member of the National Academy of Sciences
  • 1994 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1980 - Fellow of the Royal Society of Canada Academy of Science
  • 1974 - Fellow of American Geophysical Union (AGU)
  • 1964 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1964 - Fellow of Alfred P. Sloan Foundation

Overview

Robert N. Clayton was affiliated with the University of Chicago in the United States. Their career focused on research in geochemistry and cosmochemistry, fields concerned with the chemical composition of the Earth and the cosmos, respectively.

Throughout their professional life, Clayton received multiple recognitions from prominent scientific organizations and institutions. They were awarded the US President's National Medal of Science in 2004, specifically recognized for their contributions to geochemistry and cosmochemistry, including the discovery of non-mass-dependent isotope shifts in meteorites. This award was presented by President George W. Bush in a White House East Room ceremony on February 13, 2006.

Clayton was a member of the National Academy of Sciences, elected in 1996. They were also a fellow of several scientific societies: the American Association for the Advancement of Science (AAAS) since 1994, the Royal Society of Canada since 1980, the American Geophysical Union (AGU) since 1974, and held fellowships from the John Simon Guggenheim Memorial Foundation and the Alfred P. Sloan Foundation, both awarded in 1964.

While their specific publications, co-authors, fields of study, subfields, and research topics are not documented here, the honors mentioned provide insight into the scope and impact of their scientific contributions. The discovery of non-mass-dependent isotope shifts in meteorites indicates their work was significant in understanding the chemical signatures and evolution of the solar system.

Robert N. Clayton is deceased.

Best Publications

  • The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotopic analysis

    Robert N Clayton;Toshiko K Mayeda

  • Oxygen isotope fractionation in divalent metal carbonates

    James R. O'Neil;Robert N. Clayton;Toshiko K. Mayeda

  • Oxygen isotope exchange between quartz and water

    Robert N. Clayton;James R. O'Neil;Toshiko K. Mayeda

  • Oxygen isotopic fractionation in the system quartz-albite-anorthite-water

    Yukihiro Matsuhisa;Julian R. Goldsmith;Robert N. Clayton

  • A component of primitive nuclear composition in carbonaceous meteorites.

    Robert N. Clayton;Lawrence Grossman;Toshiko K. Mayeda

  • Oxygen Isotopes in Meteorites

    R N Clayton

  • Oxygen isotope studies of achondrites

    Robert N. Clayton;Toshiko K. Mayeda

  • The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water.

    Toshikazu Tarutani;Robert N Clayton;Toshiko K Mayeda

  • Oxygen isotope studies of carbonaceous chondrites

    Robert N. Clayton;Toshiko K. Mayeda

  • DISTRIBUTION OF THE PRE-SOLAR COMPONENT IN ALLENDE AND OTHER CARBONACEOUS CHONDRITES

    Robert N. Clayton;Naoki Onuma;Lawrence Grossman;Toshiko K. Mayeda

  • The oxygen isotope record in Murchison and other carbonaceous chondrites

    Robert N. Clayton;Toshiko K. Mayeda

  • Measurement of O18O16 ratios of total oxygen of carbonates

    Taleshwar Sharma;Robert N Clayton

  • Oxygen-Isotope Fractionations in Systems Containing Dolomite

    David A. Northrop;Robert N. Clayton

  • A classification of meteorites based on oxygen isotopes

    Robert N. Clayton;Naoki Onuma;Toshiko K. Mayeda

  • Oxygen isotope fractionations involving diopside, forsterite, magnetite, and calcite: Application to geothermometry

    Hitoshi Chiba;Thomas Chacko;Robert N Clayton;Julian R Goldsmith

  • Oxygen isotope studies of ordinary chondrites

    Robert N Clayton;Toshiko K Mayeda;J.N Goswami;Edward J Olsen

  • Mechanisms of hydrothermal crystallization of quartz at 250°C and 15 kbar

    Yukihiro Matsuhisa;Julian R. Goldsmith;Robert N. Clayton

  • Self-shielding in the solar nebula

    Robert N. Clayton

  • The CR (Renazzo-type) carbonaceous chondrite group and its implications

    Michael K Weisberg;Martin Prinz;Robert N Clayton;Toshiko K Mayeda

  • The origin of saline formation waters: 1. Isotopic composition

    Unknown

  • Oxygen isotope composition of the oceanic crust and its bearing on seawater

    K. Muehlenbachs;R. N. Clayton

Frequent Co-Authors

Toshiko K. Mayeda
Toshiko K. Mayeda University of Chicago
Andrew M. Davis
Andrew M. Davis University of Chicago
Roy S. Lewis
Roy S. Lewis University of Chicago
Michael J. Pellin
Michael J. Pellin Argonne National Laboratory
Klaus Keil
Klaus Keil University of Hawaii at Manoa
Lawrence Grossman
Lawrence Grossman University of Chicago
Michael K. Weisberg
Michael K. Weisberg City University of New York
Marion Jackson
Marion Jackson University of Wisconsin–Madison
John T. Wasson
John T. Wasson University of California, Los Angeles
Martin Prinz
Martin Prinz American Museum of Natural History

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