World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
40
Citations
4801
World Ranking
5947
National Ranking
2148

Roger L. Nielsen 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 Roger L. Nielsen 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: 87 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Roger L. Nielsen 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 Roger L. Nielsen 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: 40 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Roger L. Nielsen is affiliated with the South Dakota School of Mines and Technology in the United States. Their research primarily focuses on Earth and Planetary Sciences, with a particular emphasis on geophysics, mechanics of materials, artificial intelligence applications, geochemistry and petrology, and environmental engineering.

Their work spans several main research topics, including geological and geochemical analysis, hydrocarbon exploration and reservoir analysis, geochemistry and geologic mapping, high-pressure geophysics and materials, geological formations and processes exploration, earthquake and tectonic studies, and CO2 sequestration and geologic interactions.

Selected recent research publications by Roger L. Nielsen include:

  • Trace Element and Isotopic Characteristics of Plagioclase Megacrysts in Plagioclase Ultraphyric Basalts (PUB), 2020, Geochemistry Geophysics Geosystems
  • Silicate melt inclusions in the new millennium: A review of recommended practices for preparation, analysis, and data presentation, 2021, Chemical Geology
  • The Missing Magmas of MOR: Insights From Phase Equilibrium Experiments on Plagioclase Ultraphyric Basalts, 2021, Geochemistry Geophysics Geosystems
  • Europium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity, 2024, Nature Communications
  • Experimental Constraints on Homogenization of Plagioclase-Hosted Melt Inclusions From Plagioclase Ultraphyric Basalts, 2021, Frontiers in Earth Science

Frequent collaborators in Nielsen's research include:

  • Gökçe Üstünışık
  • Nick Dygert
  • Erica Cung
  • Olivia G. Daynes
  • Madison X. Betts

Most of Nielsen's publications appear in the following venues:

  • Geochemistry Geophysics Geosystems
  • Goldschmidt Abstracts
  • Zenodo (CERN European Organization for Nuclear Research)
  • Abstracts with programs - Geological Society of America
  • Goldschmidt2022 abstracts

Best Publications

  • COMAGMAT: a Fortran program to model MAGMA differentiation processes

    Alexei A. Ariskin;Mikhail Ya. Frenkel;Galina S. Barmina;Roger L. Nielsen

  • Experimentally determined mineral-melt partition coefficients for Sc, Y and REE for olivine, orthopyroxene, pigeonite, magnetite and ilmenite

    Roger L. Nielsen;William E. Gallahan;Florence Newberger

  • Major- and trace-element magnetite-melt equilibria

    Roger L. Nielsen;Lance M. Forsythe;William E. Gallahan;Martin R. Fisk

  • Use of Otolith Microchemistry to Discriminate Oncorhynchus nerka of Resident and Anadromous Origin

    B. E. Rieman;D. L. Myers;R. L. Nielsen

  • Terminology for trace-element partitioning

    Paul Beattie;Michael Drake;John Jones;William Leeman

  • Low pressure mineral-melt equilibria in natural anhydrous mafic systems

    Roger L. Nielsen;Michael A. Dungan

  • Subduction Influence on Oxygen Fugacity and Trace and Volatile Elements in Basalts Across the Cascade Volcanic Arc

    Michael C. Rowe;Adam J. R. Kent;Roger L. Nielsen

  • Melt inclusions in high-An plagioclase from the Gorda Ridge: an example of the local diversity of MORB parent magmas

    R. L. Nielsen;Jennifer Crum;Rene Bourgeois;Kaylea Hascall

  • A model for the simulation of combined major and trace element liquid lines of descent

    Roger L. Nielsen

  • Pyroxene-melt equilibria

    Roger L. Nielsen;Michael J. Drake

  • Near-primary melt inclusions in anorthite phenocrysts from the Galapagos Platfrom

    Chris W. Sinton;David M. Christie;Valerie L. Coombs;Roger L. Nielsen

  • Magnetite–melt HFSE partitioning

    Roger L. Nielsen;James S. Beard

  • The partitioning of Sc, Y, and the rare earth elements between high-Ca pyroxene and natural mafic to intermediate lavas at 1 atmosphere

    W.E Gallahan;R.L Nielsen

  • High-field-strength element partitioning between pyroxene and basaltic to dacitic magmas

    L.M. Forsythe;R.L. Nielsen;M.R. Fisk

  • TRACE. FOR: a program for the calculation of combined major and trace-element liquid lines of descent for natural magmatic systems

    Roger L. Nielsen

  • New insights into the processes controlling compositional zoning in plagioclase

    Gokce Ustunisik;Attila Kilinc;Roger L. Nielsen

  • Olivine-hosted melt inclusions in Hawaiian picrites: equilibration, melting, and plume source characteristics

    Marc D Norman;Michael O Garcia;Vadim S Kamenetsky;Roger L Nielsen

  • A numerical approach to boundary layer fractionation: application to differentiation in natural magma systems

    Roger L. Nielsen;Stephen E. DeLong

  • Experimentally determined rare-earth element and Y partitioning behavior between clinopyroxene and basaltic liquids at pressures up to 20 kbar

    Paul J. Hack;Roger L. Nielsen;A.Dana Johnston

  • Vredefort bronzite granophyre: chemical evidence for origin as a meteorite impact melt

    Bevan M. French;Roger L. Nielsen

  • CHEMICAL AND PHYSICAL INDICATORS OF COMPROMISED MELT INCLUSIONS

    Roger L. Nielsen;Peter J. Michael;Rachel Sours-Page

  • Local and regional variation of MORB parent magmas: evidence from melt inclusions from the Endeavour Segment of the Juan de Fuca Ridge

    Rachel Sours-Page;Kevin T. M. Johnson;Roger L. Nielsen;Jill L. Karsten

  • Geochemical characteristics of basaltic glasses from theamar andfamous axial valleys, Mid-Atlantic Ridge (36°–37°N): Petrogenetic implications

    F.A. Frey;N. Walker;D. Stakes;S.R. Hart

Frequent Co-Authors

Adam J.R. Kent
Adam J.R. Kent Oregon State University
Martin R. Fisk
Martin R. Fisk Oregon State University
Robert J. Bodnar
Robert J. Bodnar Virginia Tech
Peter J. Michael
Peter J. Michael University of Tulsa
Denton S. Ebel
Denton S. Ebel American Museum of Natural History
Michael J. Drake
Michael J. Drake University of Arizona
Robert A. Duncan
Robert A. Duncan Oregon State University
Michael A. Dungan
Michael A. Dungan University of Geneva
Michael O. Garcia
Michael O. Garcia University of Hawaii at Manoa
Ralph F. Keeling
Ralph F. Keeling University of California, San Diego

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