World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
92
Citations
24223
World Ranking
237
National Ranking
22

Richard Armstrong 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 Armstrong sits on this spectrum.

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 publications 603+

This scientist: 397 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

Richard Armstrong 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 Armstrong sits on this spectrum.

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: 92 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

Overview

Richard Armstrong was affiliated with the Australian National University in Australia. Their research spanned areas within Earth and Planetary Sciences, with a focus on interdisciplinary subfields including Geophysics, Artificial Intelligence, Geology, Paleontology, and Geography, Planning and Development.

The scientist's primary topics of investigation involved Geological and Geochemical Analysis, Geochemistry and Geologic Mapping, Geological and Geophysical Studies, earthquake and tectonic studies, High-pressure geophysics and materials, Pacific and Southeast Asian Studies, and Archaeology and ancient environmental studies.

Among their recent publications were:

  • Mesozoic Paleo-Pacific Subduction Beneath SW Borneo: U-Pb Geochronology of the Schwaner Granitoids and the Pinoh Metamorphic Group, 2020, Frontiers in Earth Science
  • Dating the megalithic culture of Laos: Radiocarbon, optically stimulated luminescence and U/Pb zircon results, 2021, PLoS ONE
  • Unravelling source and tectonic environment of an Ediacaran magmatic province from southeast Brazil: Insights from geochemistry and isotopic investigation, 2021, Lithos
  • Resource utilisation and regional interaction in protohistoric Cambodia - The evidence from Angkor Borei, 2020, Journal of Archaeological Science Reports
  • Provenance of metasedimentary rocks of the Kheis Terrane and Kakamas Domain: support for accretionary tectonics during the development of the western Namaqua-Natal metamorphic province, 2022, South African Journal of Geology

Frequent co-authors collaborating on their research included:

  • H. Tim Breitfeld
  • Robert Hall
  • Marnie Forster
  • Juliane Hennig-Breitfeld
  • Louise Shewan

Their findings were published in various venues, with multiple papers appearing in the South African Journal of Geology. Other publication venues included Frontiers in Earth Science, PLoS ONE, Lithos, and the Journal of Archaeological Science Reports.

Armstrong's work demonstrated a multidisciplinary approach spanning geophysical and geochemical methodologies. Their research topics also incorporated tectonic settings and cultural archaeology, reflecting a broad perspective on earth science phenomena from ancient to more recent geologic periods.

Best Publications

  • Formation of an Archaean continent

    Maarten J. de Wit;Cornel E. J. de Ronde;Marian Tredoux;Chris Roering

  • Zircon ion microprobe studies bearing on the age and evolution of the Witwatersrand triad

    R.A. Armstrong;R.A. Armstrong;W. Compston;E.A. Retief;I.S. Williams

  • Beyond lifetime averages: tracing life histories through isotopic analysis of different calcified tissues from archaeological human skeletons

    Judith Sealy;Richard H. Armstrong;Carmel Schrire

  • Initiation of the western branch of the East African Rift coeval with the eastern branch

    Eric M Roberts;N. J Stevens;Patrick M O'Connor;P.H.G.M Dirks

  • The neoproterozoic Mantiqueira Province and its African connections: a zircon-based U-Pb geochronologic subdivision for the Brasiliano/Pan-African systems of orogens

    Luiz Carlos da Silva;Neal J. McNaughton;Richard Armstrong;Léo Afraneo Hartmann

  • A Damara orogen perspective on the assembly of southwestern Gondwana

    David R Gray;David Foster;J.G. Meert;B D Goscombe

  • A chronostratigraphic framework for the north-central Kaapvaal craton, the Bushveld Complex and the Vredefort structure

    F Walraven;R.A Armstrong;F.J Kruger

  • 87Sr/86Sr ratios in modern and fossil food-webs of the Sterkfontein Valley: implications for early hominid habitat preference

    Andrew Sillen;Grant Hall;Stephen Richardson;Richard Armstrong

  • Precambrian evolution of the Sirwa Window, Anti-Atlas Orogen, Morocco

    R J Thomas;L P Chevallier;P G Gresse;R E Harmer

  • The stratigraphy of the 3.5-3.2 Ga Barberton Greenstone Belt revisited: A single zircon ion microprobe study

    R.A. Armstrong;R.A. Armstrong;R.A. Armstrong;W. Compston;M.J. de Wit;I.S. Williams

  • The western arm of the Lufilian Arc in NW Zambia and its potential for copper mineralization

    R.M. Key;A.K. Liyungu;F.M. Njamu;V. Somwe

  • Unravelling a Proterozoic basin history through detrital zircon geochronology: The case of the Espinhaço Supergroup, Minas Gerais, Brazil

    Farid Chemale;Ivo A. Dussin;Fernando F. Alkmim;Maximiliano Sousa Martins

  • The geochronology and significance of ash-fall tuffs in the glaciogenic Carboniferous-Permian Dwyka Group of Namibia and South Africa

    Berthold Bangert;Harald Stollhofen;Volker Lorenz;Richard Armstrong

  • Evolution of polycyclic basement complexes in the Araçuaí Orogen, based on U–Pb SHRIMP data: Implications for Brazil–Africa links in Paleoproterozoic time

    Carlos M. Noce;Antônio Carlos Pedrosa-Soares;Luiz Carlos da Silva;Richard Armstrong

  • Etendeka Volcanism of the Goboboseb Mountains and Messum Igneous Complex, Namibia. Part I: Geochemical Evidence of Early Cretaceous Tristan Plume Melts and the Role of Crustal Contamination in the Paraná–Etendeka CFB

    A. Ewart;S. C. Milner;R. A. Armstrong;A. R. Dungan

  • The Kaapvaal Craton and adjacent orogens, southern Africa: a geochronological database and overview of the geological development of the craton

    B.M. Eglington;Richard Armstrong

  • Dating the Oldest Greenstone in India: A 3.51-Ga Precise U-Pb SHRIMP Zircon Age for Dacitic Lava of the Southern Iron Ore Group, Singhbhum Craton

    Joydip Mukhopadhyay;N.J. Beukes;Richard Armstrong;Udo Zimmermann

  • Petrology and Geochemistry of Early Cretaceous Bimodal Continental Flood Volcanism of the NW Etendeka, Namibia. Part 1: Introduction, Mafic Lavas and Re-evaluation of Mantle Source Components

    A. Ewart;J S Marsh;S C Milner;A R Duncan

  • The tectonic evolution of the Neoproterozoic Brasília Belt, central Brazil, based on SHRIMP and LA-ICPMS U–Pb sedimentary provenance data: A review

    Márcio M. Pimentel;Joseneusa B. Rodrigues;Maria Emilia S. DellaGiustina;Sergio Junges

  • The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.

    Cristiano Lana;Fernando F. Alkmim;Richard Armstrong;Ricardo Scholz

Frequent Co-Authors

Márcio Martins Pimentel
Márcio Martins Pimentel University of Brasília
A.B. Kampunzu
A.B. Kampunzu University of Botswana
Robert Hall
Robert Hall Royal Holloway University of London
Robert J. Thomas
Robert J. Thomas Council for Geoscience
Rainer Grün
Rainer Grün Australian National University
Antônio Carlos Pedrosa-Soares
Antônio Carlos Pedrosa-Soares Universidade Federal de Minas Gerais
Gary Stevens
Gary Stevens Stellenbosch University
Ian T. Graham
Ian T. Graham University of New South Wales
Reinhardt A. Fuck
Reinhardt A. Fuck University of Brasília
Elton Luiz Dantas
Elton Luiz Dantas University of Brasília

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Related Online Degrees & Career Pathways

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Best Scientists Citing Richard Armstrong