World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
57
Citations
9393
World Ranking
2322
National Ranking
975

James M.D. Day 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 James M.D. Day 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: 282 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

James M.D. Day 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 James M.D. Day 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: 57 D-Index — 71st percentile

71% of scientists in this discipline score the same or lower.

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

Overview

James M.D. Day is affiliated with the University of California, San Diego in the United States. Their research primarily spans the fields of Earth and Planetary Sciences and Physics and Astronomy, with significant contributions in subfields such as Geophysics, Astronomy and Astrophysics, Atmospheric Science, Artificial Intelligence, and Ecology.

The scientist's main research topics include Geological and Geochemical Analysis, Astro and Planetary Science, Planetary Science and Exploration, High-pressure Geophysics and Materials, earthquake and tectonic studies, Geology and Paleoclimatology Research, and Geochemistry and Geologic Mapping.

James M.D. Day has published extensively in leading scientific venues. Frequent publication outlets include:

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

Their recent papers showcase a range of topics related to planetary science and geochemistry. Selected recent publications are:

  • What Martian Meteorites Reveal About the Interior and Surface of Mars (2020), Journal of Geophysical Research Planets
  • The 2021 eruption of the Cumbre Vieja volcanic ridge on La Palma, Canary Islands (2022), Geology Today
  • Detailed petrogenesis of the unsampled Oceanus Procellarum: The case of the Chang'e-5 mare basalts (2022), Icarus
  • Multiple early-formed water reservoirs in the interior of Mars (2020), Nature Geoscience
  • Calcium isotopic evidence for the mantle sources of carbonatites (2020), Science Advances

Collaboration is evident in their work, with frequent co-authors including Frédéric Moynier, Robert W. Nicklas, Arya Udry, Marine Paquet, and Matthew G. Jackson. These collaborations reflect a strong network within the geochemical and planetary science communities.

Best Publications

  • Zinc isotopic evidence for the origin of the Moon

    Randal C. Paniello;James M. D. Day;Frédéric Moynier

  • Anomalous sulphur isotopes in plume lavas reveal deep mantle storage of Archaean crust

    Rita A. Cabral;Matthew G. Jackson;Estelle F. Rose-Koga;Kenneth T. Koga

  • Stochastic Late Accretion to Earth, the Moon, and Mars

    William F. Bottke;Richard J. Walker;James M. D. Day;James M. D. Day;David Nesvorny

  • Tungsten-182 heterogeneity in modern ocean island basalts

    Andrea Mundl;Mathieu Touboul;Matthew G. Jackson;James M. D. Day

  • Highly Siderophile Element Constraints on Accretion and Differentiation of the Earth-Moon System

    James M. D. Day;D. Graham Pearson;Lawrence A. Taylor

  • Evidence for distinct proportions of subducted oceanic crust and lithosphere in HIMU-type mantle beneath El Hierro and La Palma, Canary Islands

    James M.D. Day;James M.D. Day;D. Graham Pearson;Colin G. Macpherson;David Lowry

  • The 2021 eruption of the Cumbre Vieja volcanic ridge on La Palma, Canary Islands

    Unknown

  • Highly Siderophile Elements in Earth, Mars, the Moon, and Asteroids.

    James M.D. Day;Alan D. Brandon;Richard J. Walker

  • What martian meteorites reveal about the interior and surface of Mars

    Arya Udry;Geoffrey Hamilton Howarth;Christopher Herd;James M.D. Day

  • Extensive volatile loss during formation and differentiation of the Moon

    Chizu Kato;Chizu Kato;Frederic Moynier;Frederic Moynier;Maria C. Valdes;Jasmeet K. Dhaliwal

  • Hotspot volcanism and highly siderophile elements

    James M.D. Day

  • Petrogenesis of olivine-phyric shergottite Larkman Nunatak 06319: Implications for enriched components in martian basalts

    Amit Basu Sarbadhikari;James M.D. Day;Yang Liu;Douglas Rumble

  • 186Os–187Os and highly siderophile element abundance systematics of the mantle revealed by abyssal peridotites and Os-rich alloys

    James M.D. Day;Richard J. Walker;Jessica M. Warren

  • Evaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon

    James M. D. Day;Frederic Moynier

  • Oxygen isotope constraints on the origin and differentiation of the Moon

    Michael J. Spicuzza;James M.D. Day;Lawrence A. Taylor;John W. Valley

  • Evolution of the martian mantle inferred from the 187Re–187Os isotope and highly siderophile element abundance systematics of shergottite meteorites

    Alan D. Brandon;Igor S. Puchtel;Richard J. Walker;James M.D. Day;James M.D. Day

  • Pyroxenite-rich mantle formed by recycled oceanic lithosphere: Oxygen-osmium isotope evidence from Canary Island lavas

    James M.D. Day;James M.D. Day;D. Graham Pearson;Colin G. Macpherson;David Lowry

  • Petrology and chemistry of MIL 03346 and its significance in understanding the petrogenesis of nakhlites on Mars

    James M. D. Day;Lawrence A. Taylor;Christine Floss;Harry Y. Mcsween

  • Detailed petrogenesis of the unsampled Oceanus Procellarum: The case of the Chang'e-5 mare basalts

    Unknown

  • Late accretion as a natural consequence of planetary growth

    James M. D. Day;James M. D. Day;Richard J. Walker;Liping Qin;Liping Qin;Douglas Rumble

  • Isotopic links between atmospheric chemistry and the deep sulphur cycle on Mars

    Heather B. Franz;Heather B. Franz;Sang-Tae Kim;James Farquhar;James M. D. Day

  • High-3He/4He, depleted mantle and low-δ18O, recycled oceanic lithosphere in the source of central Iceland magmatism

    Colin G. Macpherson;David R. Hilton;James M.D. Day;David Lowry

  • Highly siderophile element depletion in the Moon

    James M.D. Day;Richard J. Walker

Frequent Co-Authors

Lawrence A. Taylor
Lawrence A. Taylor University of Tennessee at Knoxville
Richard J. Walker
Richard J. Walker University of Maryland, College Park
David R. Hilton
David R. Hilton University of California, San Diego
Matthew G. Jackson
Matthew G. Jackson University of California, Santa Barbara
William F. McDonough
William F. McDonough University of Maryland, College Park
Douglas Rumble
Douglas Rumble Carnegie Institution for Science
Igor S. Puchtel
Igor S. Puchtel University of Maryland, College Park
Colin G. Macpherson
Colin G. Macpherson Durham University
Clive R. Neal
Clive R. Neal University of Notre Dame
Harry Y. McSween
Harry Y. McSween University of Tennessee at Knoxville

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For those interested in Earth Science, pursuing related online degrees can open diverse career pathways. Apart from traditional earth science programs, students may consider interdisciplinary fields like digital photography, which is valuable for environmental documentation and remote sensing. Options such as photography colleges online offer affordable and flexible learning models that complement scientific study with technical skills.

Veterans looking to expand their skill sets can find tailored opportunities as well. Programs designed specifically for those with military backgrounds can ease the transition into new careers. For example, there are targeted offerings in photography programs online for veterans and spanish degree online for veterans, which build transferable skills and enhance employability in various sectors.

Language skills are another excellent complement to Earth Science studies, benefiting careers in global environmental policy, research, and conservation. Exploring degrees like the online degree in spanish can provide both cultural insight and communication advantages in international environments.

Best Scientists Citing James M.D. Day

Trending Scientists

Recently Published Articles