World's Best Scientists 2026 revealed!
S. A. Halldorsson

S. A. Halldorsson

D-Index & Metrics

Earth Science

D-Index
33
Citations
3608
World Ranking
8448
National Ranking
22

S. A. Halldorsson 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 S. A. Halldorsson 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: 171 publications — 50th percentile

50% of scientists in this discipline score the same or lower.

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

S. A. Halldorsson 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 S. A. Halldorsson 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: 33 D-Index — 11th percentile

11% of scientists in this discipline score the same or lower.

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

Overview

S. A. Halldorsson is affiliated with the University of Iceland in Iceland and specializes in Earth and Planetary Sciences. Their research spans multiple subfields, including Geophysics, Atmospheric Science, Environmental Chemistry, Geochemistry and Petrology, and Artificial Intelligence. This diverse background supports their extensive work in understanding geological and geochemical processes and phenomena.

The scientist's work covers a range of main topics that include:

  • Geological and Geochemical Analysis
  • Earthquake and Tectonic Studies
  • Geology and Paleoclimatology Research
  • High-pressure Geophysics and Materials
  • Methane Hydrates and Related Phenomena
  • Geochemistry and Elemental Analysis
  • Geochemistry and Geologic Mapping

Among their recent publications are studies that contribute to the understanding of volcanic and tectonic processes, mantle geochemistry, and volatile cycling. Significant papers include:

  • "Subduction-Driven Volatile Recycling: A Global Mass Balance," 2020, published in Annual Review of Earth and Planetary Sciences
  • "Linking deeply-sourced volatile emissions to plateau growth dynamics in southeastern Tibetan Plateau," 2021, published in Nature Communications
  • "Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland," 2022, published in Nature
  • "Hydrothermal 15N15N abundances constrain the origins of mantle nitrogen," 2020, published in Nature
  • "Unexpected large eruptions from buoyant magma bodies within viscoelastic crust," 2020, published in Nature Communications

Frequent publication venues for Halldorsson include:

  • Earth and Planetary Science Letters
  • Chemical Geology
  • Geochimica et Cosmochimica Acta
  • Goldschmidt Abstracts
  • Goldschmidt2022 abstracts

The scientist collaborates regularly with several researchers, notably:

  • Andri Stefánsson
  • Peter H. Barry
  • Eemu Ranta
  • Alberto Caracciolo
  • Enikö Bali

This combination of diverse fields, broad thematic research topics, and collaborative work characterizes the active research profile of S. A. Halldorsson.

Best Publications

  • Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflow

    Magnús T. Gudmundsson;Kristín Jónsdóttir;Andrew Hooper;Eoghan P. Holohan

  • Evidence for primordial water in Earth’s deep mantle

    Lydia J. Hallis;Gary R. Huss;Kazuhide Nagashima;G. Jeffrey Taylor

  • Subduction-Driven Volatile Recycling: A Global Mass Balance

    D.V. Bekaert;S.J. Turner;M.W. Broadley;J.D. Barnes

  • Forearc carbon sink reduces long-term volatile recycling into the mantle

    P. H. Barry;P. H. Barry;J. M. de Moor;D. Giovannelli;M. Schrenk

  • Carbon isotope and abundance systematics of Icelandic geothermal gases, fluids and subglacial basalts with implications for mantle plume-related CO2 fluxes

    P.H. Barry;P.H. Barry;D.R. Hilton;E. Füri;E. Füri;S.A. Halldórsson

  • Environmental pressure from the 2014–15 eruption of Bárðarbunga volcano, Iceland

    S.R. Gislason;G. Stefánsdóttir;M.A. Pfeffer;S. Barsotti

  • Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland

    Unknown

  • A common mantle plume source beneath the entire East African Rift System revealed by coupled helium‐neon systematics

    Sæmundur A. Halldórsson;David R. Hilton;Paolo Scarsi;Tsegaye Abebe

  • Clinopyroxene–Liquid Equilibria and Geothermobarometry in Natural and Experimental Tholeiites: the 2014–2015 Holuhraun Eruption, Iceland

    David A Neave;David A Neave;Enikő Bali;Guðmundur H Guðfinnsson;Sæmundur A Halldórsson

  • Linking deeply-sourced volatile emissions to plateau growth dynamics in southeastern Tibetan Plateau.

    Maoliang Zhang;Zhengfu Guo;Zhengfu Guo;Sheng Xu;Peter H. Barry

  • Helium isotopes at Rungwe Volcanic Province, Tanzania, and the origin of East African Plateaux

    D. R. Hilton;S. A. Halldórsson;P. H. Barry;T. P. Fischer

  • Isotopic-heterogeneity of the Thjorsa lava-Implications for mantle sources and crustal processes within the Eastern Rift Zone, Iceland

    Saemundur Ari Halldorsson;Niels Oskarsson;Karl Gronvold;Gylfi Sigurdsson

  • Apparent decoupling of the He and Ne isotope systematics of the Icelandic mantle: The role of He depletion, melt mixing, degassing fractionation and air interaction

    Evelyn Füri;D.R. Hilton;S.A. Halldórsson;P.H. Barry

  • Hydrothermal 15 N 15 N abundances constrain the origins of mantle nitrogen

    J. Labidi;J. Labidi;P. H. Barry;D. V. Bekaert;M. W. Broadley

  • The Mercury Isotopic Composition of Earth's Mantle and the Use of Mass Independently Fractionated Hg to Test for Recycled Crust

    Frédéric Moynier;Frédéric Moynier;Matthew G. Jackson;Ke Zhang;Hongming Cai

  • Melt inclusion constraints on petrogenesis of the 2014–2015 Holuhraun eruption, Iceland

    Margaret E. Hartley;Eniko Bali;John Maclennan;David A. Neave

  • Unexpected large eruptions from buoyant magma bodies within viscoelastic crust.

    Freysteinn Sigmundsson;Virginie Pinel;Ronni Grapenthin;Andrew Hooper

  • Ancient helium and tungsten isotopic signatures preserved in mantle domains least modified by crustal recycling.

    Matthew G Jackson;Janne Blichert-Toft;Saemundur A Halldórsson;Andrea Mundl-Petermeier

  • Temporal evolution of primordial tungsten-182 and 3He/4He signatures in the Iceland mantle plume

    A. Mundl-Petermeier;A. Mundl-Petermeier;R.J. Walker;M.G. Jackson;J. Blichert-Toft

  • Isotope systematics of Icelandic thermal fluids

    Andri Stefánsson;David R. Hilton;Árný E. Sveinbjörnsdóttir;Peter Torssander

  • Melt inclusion constraints on volatile systematics and degassing history of the 2014–2015 Holuhraun eruption, Iceland

    E Bali;Margaret E. Hartley;Sæmundur A. Halldórsson;Gudmundur H. Gudfinnsson

Frequent Co-Authors

David R. Hilton
David R. Hilton University of California, San Diego
Andri Stefánsson
Andri Stefánsson University of Iceland
Magnús T. Gudmundsson
Magnús T. Gudmundsson University of Iceland
Andrew Hooper
Andrew Hooper University of Leeds
Tobias P. Fischer
Tobias P. Fischer University of New Mexico
Freysteinn Sigmundsson
Freysteinn Sigmundsson University of Iceland
Mark D. Kurz
Mark D. Kurz Woods Hole Oceanographic Institution
Jaime D. Barnes
Jaime D. Barnes The University of Texas at Austin
Páll Einarsson
Páll Einarsson University of Iceland
Matthew G. Jackson
Matthew G. Jackson University of California, Santa Barbara

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