World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
62
Citations
9603
World Ranking
1738
National Ranking
106

Jean-Alix Barrat 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 Jean-Alix Barrat 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: 556 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: 248 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

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

Jean-Alix Barrat 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 Jean-Alix Barrat 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: 181 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: 62 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Overview

Jean-Alix Barrat is affiliated with the University of Western Brittany in France and has a research focus spanning Earth and Planetary Sciences as well as Physics and Astronomy. Their scholarly contributions extend across multiple subfields including Astronomy and Astrophysics, Geophysics, Geochemistry and Petrology, Atmospheric Science, and Inorganic Chemistry.

The scientist's main areas of study encompass diverse topics such as Astro and Planetary Science, Geochemistry and Elemental Analysis, Planetary Science and Exploration, Geological and Geochemical Analysis, High-pressure geophysics and materials, Geology and Paleoclimatology Research, and Radioactive element chemistry and processing.

Jean-Alix Barrat has published extensively in several scientific journals, with particularly frequent publications in:

  • Geochimica et Cosmochimica Acta
  • Journal of Neuroradiology
  • Meteoritics and Planetary Science
  • Chemical Geology
  • Geochemical Perspectives Letters

Their recent papers include:

  • The most primitive CM chondrites, Asuka 12085, 12169, and 12236, of subtypes 3.0-2.8: Their characteristic features and classification (2020, Polar Science)
  • Calculation of cerium and lanthanum anomalies in geological and environmental samples (2022, Chemical Geology)
  • A 4,565-My-old andesite from an extinct chondritic protoplanet (2021, Proceedings of the National Academy of Sciences)
  • The old, unique C1 chondrite Flensburg - Insight into the first processes of aqueous alteration, brecciation, and the diversity of water-bearing parent bodies and lithologies (2020, Geochimica et Cosmochimica Acta)
  • The Tarda Meteorite: A Window into the Formation of D-type Asteroids (2021, The Astrophysical Journal Letters)

Collaborations have been an integral part of their research projects. Frequent co-authors include:

  • Germain Bayon
  • D. Ben Salem
  • A. Bischoff
  • Frédéric Moynier
  • Marie-Laure Rouget

Best Publications

  • Geochemistry of CI chondrites: Major and trace elements, and Cu and Zn Isotopes

    Jean-Alix Barrat;B. Zanda;Frédéric Moynier;Claire Bollinger

  • Rare earth elements and neodymium isotopes in world river sediments revisited

    Germain Bayon;Germain Bayon;Samuel Toucanne;Charlotte Skonieczny;L. Andre

  • DETERMINATION OF RARE EARTH ELEMENTS IN SIXTEEN SILICATE REFERENCE SAMPLES BY ICP‐MS AFTER TM ADDITION AND ION EXCHANGE SEPARATION

    J.A. Barrat;F. Keller;J. Amossé;R.N. Taylor

  • The Paris meteorite, the least altered CM chondrite so far

    Roger H. Hewins;Roger H. Hewins;Michèle Bourot-Denise;Brigitte Zanda;Hugues Leroux

  • The Stannern trend eucrites: Contamination of main group eucritic magmas by crustal partial melts

    J.A. Barrat;A. Yamaguchi;R.C. Greenwood;M. Bohn

  • Rare earth element contents of Jurassic fish and reptile teeth and their potential relation to seawater composition (Anglo-Paris Basin, France and England)

    Stéphanie Picard;Stéphanie Picard;Christophe Lécuyer;Christophe Lécuyer;Jean-Alix Barrat;Jean-Pierre Garcia

  • Tissint Martian Meteorite: A Fresh Look at the Interior, Surface, and Atmosphere of Mars

    H. Chennaoui Aoudjehane;G. Avice;Jean-Alix Barrat;Omar Boudouma

  • δ18O and REE contents of phosphatic brachiopods: a comparison between modern and lower Paleozoic populations

    Christophe Lécuyer;Patricia Grandjean;Jean-Alix Barrat;Jaak Nolvak

  • Petrology and chemistry of the Picritic Shergottite North West Africa 1068 (NWA 1068)

    J.A Barrat;A Jambon;M Bohn;P.h Gillet

  • Determination of Rare Earth Elements, Sc, Y, Zr, Ba, Hf and Th in Geological Samples by ICP-MS after Tm Addition and Alkaline Fusion

    Germain Bayon;Jean Alix Barrat;Joël Etoubleau;Mathieu Benoit

  • The differentiation of eucrites: The role of in situ crystallization

    J. A. Barrat;J. Blichert-Toft;Ph. Gillet;F. Keller

  • Coupled 63Cu and 16O excesses in chondrites

    J.M Luck;D.Ben Othman;J.A Barrat;F Albarède

  • Strontium isotopes and rare-earth element geochemistry of hydrothermal carbonate deposits from Lake Tanganyika, East Africa

    J.A Barrat;J Boulègue;J.J Tiercelin;M Lesourd

  • Silicon isotopes in angrites and volatile loss in planetesimals

    Emily A. Pringle;Frédéric Moynier;Paul S. Savage;James Badro

  • Oxygen isotope variation in stony-iron meteorites.

    Richard C. Greenwood;I. A. Franchi;A. Jambon;J. A. Barrat

  • Isotope (Sr, Nd, Pb, O) and trace-element geochemistry of volcanics from the Erta'Ale range (Ethiopia)

    J.A. Barrat;S. Fourcade;B.M. Jahn;J.L. Cheminée

  • Stable isotope composition and rare earth element content of vertebrate remains from the Late Cretaceous of northern Spain (Lano): did the environmental record survive?

    C. Lécuyer;C. Lécuyer;C. Bogey;J.-P. Garcia;P. Grandjean

  • The Tatahouine diogenite: Mineralogical and chemical effects of sixty-three years of terrestrial residence

    J. A. Barrat;Ph. Gillet;Ph. Gillet;M. Lesourd;J. Blichert-Toft

  • Determination of rare earth elements and other trace elements (Y, Mn, Co, Cr) in seawater using Tm addition and Mg(OH)2 co-precipitation

    Nicolas Freslon;Germain Bayon;Dominique Birot;Claire Bollinger;Claire Bollinger

  • Relative chronology of crust formation on asteroid Vesta: Insights from the geochemistry of diogenites

    Jean-Alix Barrat;Akira Yamaguchi;Brigitte Zanda;Claire Bollinger

  • Crustal partial melting on Vesta: Evidence from highly metamorphosed eucrites

    A. Yamaguchi;A. Yamaguchi;Jean-Alix Barrat;R.C. Greenwood;N. Shirai;N. Shirai

Frequent Co-Authors

Akira Yamaguchi
Akira Yamaguchi National Institute of Polar Research
Marcel Bohn
Marcel Bohn French National Centre for Scientific Research
Albert Jambon
Albert Jambon Université Paris Cité
Richard C. Greenwood
Richard C. Greenwood The Open University
Ian A. Franchi
Ian A. Franchi The Open University
Philippe Gillet
Philippe Gillet École Polytechnique Fédérale de Lausanne
Violaine Sautter
Violaine Sautter Centre national de la recherche scientifique, CNRS
Addi Bischoff
Addi Bischoff University of Münster
Pierre Beck
Pierre Beck Grenoble Alpes University
Germain Bayon
Germain Bayon French Research Institute for Exploitation of the Sea

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