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Earth Science
USA
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 129 26 23 11 9 520 45028

Alex N. Halliday publications per year

The chart shows the history of publications by Alex N. Halliday between 1968 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Alex N. Halliday published across 58 years, from 1968 to 2025, averaging 9.5 papers a year. Output peaked at 37 publications in 2006. 11 of the 552 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1968 to 2025. Vertical axis: number of publications, 0 to 37. Peak 37 publications in 2006. 1968: 1 publication 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 1 publication 1977: 2 publications 1978: 1 publication 1979: 3 publications 1980: 8 publications 1981: 1 publication 1982: 1 publication 1983: 3 publications 1984: 9 publications 1985: 6 publications 1986: 3 publications 1987: 5 publications 1988: 6 publications 1989: 2 publications 1990: 12 publications 1991: 14 publications 1992: 8 publications 1993: 14 publications 1994: 12 publications 1995: 18 publications 1996: 18 publications 1997: 17 publications 1998: 20 publications 1999: 19 publications 2000: 19 publications 2001: 17 publications 2002: 16 publications 2003: 19 publications 2004: 27 publications 2005: 25 publications 2006: 37 publications 2007: 27 publications 2008: 22 publications 2009: 35 publications 2010: 12 publications 2011: 13 publications 2012: 7 publications 2013: 12 publications 2014: 7 publications 2015: 9 publications 2016: 2 publications 2017: 7 publications 2018: 1 publication 2019: 3 publications 2020: 5 publications 2021: 4 publications 2022: 8 publications 2023: 3 publications 2024: 4 publications 2025: 7 publications
1968 2025

552 publications in total across all disciplines

View publications per year as a table
Alex N. Halliday: publications per year, 1968 to 2025
Year Publications
1968 1
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 1
1977 2
1978 1
1979 3
1980 8
1981 1
1982 1
1983 3
1984 9
1985 6
1986 3
1987 5
1988 6
1989 2
1990 12
1991 14
1992 8
1993 14
1994 12
1995 18
1996 18
1997 17
1998 20
1999 19
2000 19
2001 17
2002 16
2003 19
2004 27
2005 25
2006 37
2007 27
2008 22
2009 35
2010 12
2011 13
2012 7
2013 12
2014 7
2015 9
2016 2
2017 7
2018 1
2019 3
2020 5
2021 4
2022 8
2023 3
2024 4
2025 7
Total 552
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Alex N. Halliday 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 Alex N. Halliday 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, 518–527 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: 520 publications — 98th percentile

98% 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
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 16 520
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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Alex N. Halliday 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 Alex N. Halliday 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, 106+ 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: 129 D-Index — 100th percentile

100% 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
102 9
103 4
104 6
105 6
106+ 98 129
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Research.com Recognitions

  • 2026 - Research.com Earth Science in United States Leader Award
  • 2025 - Research.com Earth Science in United States Leader Award
  • 2022 - Research.com Earth Science in United States Leader Award
  • 2016 - Member of Academia Europaea
  • 2015 - Member of the National Academy of Sciences
  • 2001 - Geochemistry Fellow Honor, Geochemical Society and the European Association of Geochemistry

Overview

Alex N. Halliday is affiliated with the Lamont-Doherty Earth Observatory in the United States. Their research primarily focuses on Earth and Planetary Sciences, with notable contributions in subfields such as Geophysics, Astronomy and Astrophysics, Geochemistry and Petrology, Nutrition and Dietetics, and Health, Toxicology and Mutagenesis.

Their body of work covers key topics including Geological and Geochemical Analysis, Astro and Planetary Science, Geochemistry and Elemental Analysis, Planetary Science and Exploration, Geology and Paleoclimatology Research, Trace Elements in Health, and Heavy Metal Exposure and Toxicity.

Recent publications authored or co-authored by Alex N. Halliday include:

  • The accretion of planet Earth, 2022, Nature Reviews Earth & Environment
  • Urine metallomics signature as an indicator of pancreatic cancer, 2020, Metallomics
  • High-precision potassium isotopic measurements by collision cell equipped MC-ICPMS, 2021, Chemical Geology
  • The Cl isotope composition and halogen contents of Apollo-return samples, 2020, Proceedings of the National Academy of Sciences
  • Heterogeneous nickel isotopic compositions in the terrestrial mantle - Part 1: Ultramafic lithologies, 2020, Geochimica et Cosmochimica Acta

Frequent co-authors include:

  • Kathrin Schilling
  • Matthew Jerram
  • Pierre Bonnand
  • Fiona Larner
  • Naomi Saunders

Alex N. Halliday has published regularly in several influential venues, among which the most frequent are:

  • Geochimica et Cosmochimica Acta
  • Chemical Geology
  • Environmental Science & Technology
  • Goldschmidt2022 abstracts
  • Metallomics

Their research reflects an integration of analytical geochemistry with planetary science, encompassing isotopic measurements and the study of elemental distributions in geological and biological contexts.

Recognition for their contributions includes several distinguished awards:

  • Member of Academia Europaea, 2016
  • Member of the National Academy of Sciences, 2015
  • Geochemistry Fellow Honor, Geochemical Society and the European Association of Geochemistry, 2001

Best Publications

  • Nature of the Earth's earliest crust from hafnium isotopes in single detrital zircons

    Yuri Amelin;Der-Chuen Lee;Alex N. Halliday;Robert T. Pidgeon

  • Early-middle archaean crustal evolution deduced from Lu-Hf and U-Pb isotopic studies of single zircon grains

    Y. Amelin;D.-C. Lee;D.-C. Lee;A.N. Halliday

  • Core formation on Mars and differentiated asteroids

    Der-Chuen Lee;Alex N. Halliday

  • Hf-W chronology of the accretion and early evolution of asteroids and terrestrial planets

    Thorsten Kleine;Mathieu Touboul;Bernard Bourdon;Francis Nimmo

  • Thermal and Magmatic Evolution of the Moon

    Charles K. Shearer;Paul C. Hess;Mark A. Wieczorek;Matt E. Pritchard

  • INCOMPATIBLE TRACE-ELEMENTS IN OIB AND MORB AND SOURCE ENRICHMENT IN THE SUB-OCEANIC MANTLE

    Alex N. Halliday;Der-Chuen Lee;Simone Tommasini;Gareth R. Davies

  • Oxygen Isotopes and the Moon-Forming Giant Impact

    U. Wiechert;A. N. Halliday;D.-C. Lee;G. A. Snyder

  • Incompatible trace elements in OIB and MORB and source enrichment in the sub-oceanic mantle.

    A. N. Halliday;D. C. Lee;S. Tommasini;G. R. Davies

  • Isotopic and chemical evidence concerning the genesis and contamination of basaltic and rhyolitic magma beneath the Yellowstone Plateau Volcanic Field

    Wes Hildreth;Alex N. Halliday;Robert L. Christiansen

  • Emergence of a habitable planet

    Kevin Zahnle;Nick Arndt;Charles Cockell;Alex Halliday

  • Isotopic record of lead pollution in lake sediments from the northeastern United States

    J.R. Graney;A.N. Halliday;G.J. Keeler;J.O. Nriagu

  • New sample preparation techniques for the determination of Si isotopic compositions using MC-ICPMS

    R. B. Georg;B. C. Reynolds;Martin Frank;A. N. Halliday

  • Closure temperatures of the Sm—Nd system in metamorphic garnets

    Klaus Mezger;Eric J. Essene;A. N. Halliday

  • Provenance of dust in the Pacific Ocean

    Shun'ichi Nakai;Alex N. Halliday;David K. Rea

  • Low-temperature isotopic fractionation of uranium

    Claudine H. Stirling;Morten B. Andersen;Emma-Kate Potter;Alex N. Halliday

  • Ir, Ru, Pt, and Pd in basalts and komatiites: new constraints for the geochemical behavior of the platinum-group elements in the mantle

    Mark Rehkämper;Mark Rehkämper;A.N. Halliday;A.N. Halliday;J.G. Fitton;D.-C. Lee

  • Applications of Multiple Collector-ICPMS to Cosmochemistry, Geochemistry, and Paleoceanography

    Alex N. Halliday;Der Chuen Lee;John N. Christensen;Mark Rehkämper

  • Silicon in the Earth's core.

    R. Bastian Georg;Alex N. Halliday;Edwin A. Schauble;Ben C. Reynolds

  • Iron isotope differences between Earth, Moon, Mars and Vesta as possible records of contrasted accretion mechanisms

    Franck Poitrasson;Alexander N. Halliday;Der-Chuen Lee;Sylvain Levasseur

  • Origin and Migration of the Alpine Iceman

    Wolfgang Müller;Henry Fricke;Alex N. Halliday;Malcolm T. McCulloch

Frequent Co-Authors

Der-Chuen Lee
Der-Chuen Lee Academia Sinica
Mark Rehkämper
Mark Rehkämper Imperial College London
Kevin W. Burton
Kevin W. Burton Durham University
Helen M. Williams
Helen M. Williams University of Cambridge
Sune G. Nielsen
Sune G. Nielsen Woods Hole Oceanographic Institution
Sophie Opfergelt
Sophie Opfergelt Université Catholique de Louvain
James R. Hein
James R. Hein United States Geological Survey
Claudine H. Stirling
Claudine H. Stirling University of Otago
Lawrence A. Taylor
Lawrence A. Taylor University of Tennessee at Knoxville

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