World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
42
Citations
6123
World Ranking
5300
National Ranking
1977

Roman A. Schmitt 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 Roman A. Schmitt sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 145 publications — 34th percentile

34% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

Roman A. Schmitt 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 Roman A. Schmitt sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 42 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Overview

Roman A. Schmitt is affiliated with Oregon State University in the United States. Their research spans several fields, primarily focusing on engineering, chemistry, and materials science. Within these broader disciplines, their work touches on specific subfields such as mechanics of materials, materials chemistry, atomic and molecular physics and optics, inorganic chemistry, and control and systems engineering.

The scientist's research topics include atomic and molecular physics, muon and positron interactions and applications, inorganic fluorides and related compounds, mining techniques and economics, railway systems and materials science, metal extraction, bioleaching, and fullerene chemistry and applications.

Roman A. Schmitt has contributed to several publications across different scientific venues. Recent papers include:

  • Separation and Isolation of Rare-Earth Clusters Trapped inside Uncommon Carbon Cages, 2024, ECS Meeting Abstracts
  • An economic block model-based framework to determine design requirements for ferromanganese crust mining systems, 2025, Marine Georesources and Geotechnology
  • Supramolecular Length-Dependent Encapsulation of C90, C100, C120, and C130: a Shape-Selective Approach to Fullertube Purification, 2025, Journal of the American Chemical Society

Schmitt's collaborations involve working with several coauthors, with notable frequent collaborators including Steven Stevenson, Maxime Lesage, Steinar Løve Ellefmo, Valentina Iannace, and Clara Sabrià.

Publications have appeared primarily in the following venues:

  • ECS Meeting Abstracts
  • Marine Georesources and Geotechnology
  • Journal of the American Chemical Society

Best Publications

  • Rare-Earth distributions in the marine environment

    Edward D. Goldberg;Minoru Koide;R. A. Schmitt;R. H. Smith

  • Meteoritic, solar and terrestrial rare-earth distributions.

    Larry A. Haskin;Fred A. Frey;Roman A. Schmitt;Richard H. Smith

  • Cerium:A chemical tracer for paleo-oceanic redox conditions

    Y.-G. Liu;M.R.U. Miah;R.A. Schmitt

  • Abstracts of Contributed Papers

    R. C. Henry;J. E. Hesser;W. McClintock;J. Audouze

  • ELEMENTAL ABUNDANCES IN STONE METEORITES

    R. A. Schmitt;G. G. Goles;R. H. Smith;T. W. Osborn

  • Elemental abundances in chondrules from unequilibrated chondrites: Evidence for chondrule origin by melting of pre-existing materials

    James L. Gooding;Klaus Keil;Takaaki Fukuoka;Roman A. Schmitt

  • Chemical evidence for the genesis of the ureilites, the achondrite Chassigny and the nakhlites

    W.V Boynton;P.M Starzyk;R.A Schmitt

  • Rare-earth, yttrium and scandium abundances in meteoritic and terrestrial matter—II

    Unknown

  • Rare earth element geochemistry of South Atlantic deep sea sediments: Ce anomaly change at ~54 My

    Y.L. Wang;Y.-G. Liu;R.A. Schmitt

  • Correlation of volcanic ash deposits by activation analysis of glass separates

    G. A. Borchardt;M. E. Harward;R. A. Schmitt

  • Trace element partitioning between volcanic plagioclase and dacitic pyroclastic matrix

    M.J. Dudas;R.A. Schmitt;M.E. Harward

  • Petrogenetic modeling of Hawaiian tholeiitic basalts: A geochemical approach

    J. R. Budahn;R. A. Schmitt

  • Petrogenesis of the SNC (shergottites, nakhlites, chassignites) meteorites: Implications for their origin from a large dynamic planet, possibly Mars

    M. R. Smith;J. C. Laul;M. S. Ma;T. Huston

  • Basalt generation at the Apollo 12 site. Part 1: New data, classification, and re-evaluation

    Clive R. Neal;Matthew D. Hacker;Matthew D. Hacker;Gregory A. Snyder;Lawrence A. Taylor

  • Genesis of howardites, diogenites, and eucrites.

    T. Fukuoka;W. V. Boynton;M. S. Ma;R. A. Schmitt

  • Alteration of basaltic glasses from north-central British Columbia, Canada

    M.J. Jercinovic;K. Keil;M.R. Smith;R.A. Schmitt

  • Apollo 14 aluminous mare basalts and their possible relationship to KREEP.

    T. Dickinson;G. J. Taylor;K. Keil;R. A. Schmitt

  • Geochemistry of sediments on the Rio Grande Rise and the redox evolution of the South Atlantic Ocean

    X. Hu;Y.L. Wang;R.A. Schmitt

  • The petrogenesis of L-6 chondrites: insights from the chemistry of minerals

    David B. Curtis;R.A. Schmitt

  • Apollo 15 yellow-brown volcanic glass: Chemistry and petrogenetic relations to green volcanic glass and olivine-normative mare basalts

    S.S Hughes;J.W Delano;R.A Schmitt

  • Radiochemical neutron activation analysis of indium, cadmium, yttrium and the 14 rare earth elements in rocks

    P. Rey;H. Wakita;R.A. Schmitt

  • Genesis of the Angra dos Reis and other achondritic meteorites

    M.-S. Ma;A.V. Murali;R.A. Schmitt

Frequent Co-Authors

Klaus Keil
Klaus Keil University of Hawaii at Manoa
Lawrence A. Taylor
Lawrence A. Taylor University of Tennessee at Knoxville
Clive R. Neal
Clive R. Neal University of Notre Dame
Donald D. Bogard
Donald D. Bogard Planetary Science Institute
Gregory A. Snyder
Gregory A. Snyder University of Tennessee at Knoxville
Steven B. Simon
Steven B. Simon University of New Mexico
William V. Boynton
William V. Boynton University of Arizona
James P. McKinley
James P. McKinley Pacific Northwest National Laboratory
James J. Papike
James J. Papike University of New Mexico
Martin Prinz
Martin Prinz American Museum of Natural History

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