World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
78
Citations
18756
World Ranking
598
National Ranking
296

Conel M. O'd. Alexander 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 Conel M. O'd. Alexander 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: 352 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

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

Conel M. O'd. Alexander 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 Conel M. O'd. Alexander 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: 78 D-Index — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Overview

Conel M. O'd. Alexander is affiliated with the Carnegie Institution for Science in the United States and specializes primarily in Physics and Astronomy, with a focused expertise in Astronomy and Astrophysics. Their research portfolio extends into related subfields including Ecology, Geophysics, Atmospheric Science, and Nuclear and High Energy Physics.

Their scholarly work covers a broad range of topics centered on astro and planetary science, with significant contributions in planetary science and exploration. Other main topics addressed in their publications include isotope analysis in ecology, high-pressure geophysics and materials, stellar, planetary, and galactic studies, geological and geochemical analysis, and astrophysics and star formation studies.

Alexander has published extensively in several scientific venues. The most frequent publication venues for their work are:

  • Geochimica et Cosmochimica Acta
  • Meteoritics and Planetary Science
  • arXiv (Cornell University)
  • Science Advances
  • Nature Astronomy

Among their recent papers are:

  • Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites (2022, Science)
  • Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by OSIRIS-REx (2024, Meteoritics and Planetary Science)
  • Ryugu's nucleosynthetic heritage from the outskirts of the Solar System (2022, Science Advances)
  • Abundant extraterrestrial amino acids in the primitive CM carbonaceous chondrite Asuka 12236 (2020, Meteoritics and Planetary Science)
  • Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu (2025, Nature Astronomy)

Frequent collaborators in Alexander's research include:

  • L. R. Nittler
  • A. N. Nguyen
  • Martin Bizzarro
  • Frédéric Moynier
  • S. S. Russell

Best Publications

  • Comet 81P/Wild 2 under a microscope.

    Don Brownlee;Peter Tsou;Jérôme Aléon;Conel M O'd Alexander

  • The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets

    C. M. O’D. Alexander;R. Bowden;M. L. Fogel;K. T. Howard;K. T. Howard

  • Organics captured from comet 81P/Wild 2 by the Stardust spacecraft.

    Scott A. Sandford;Jérôme Aléon;Conel M. O. 'D. Alexander;Tohru Araki

  • The origin and evolution of chondrites recorded in the elemental and isotopic compositions of their macromolecular organic matter

    C.M.O’D. Alexander;M. Fogel;H. Yabuta;G.D. Cody

  • STELLAR SAPPHIRES: THE PROPERTIES AND ORIGINS OF PRESOLAR Al 2 O 3 IN METEORITES

    Larry R. Nittler;Larry R. Nittler;Conel M. O'd. Alexander;Conel M. O'd. Alexander;Xia Gao;Robert M. Walker

  • Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

    Unknown

  • Interstellar chemistry recorded in organic matter from primitive meteorites

    Henner Busemann;Andrea F. Young;Conel M. O'd. Alexander;Peter Hoppe

  • NMR studies of chemical structural variation of insoluble organic matter from different carbonaceous chondrite groups

    George D. Cody;Conel M.O.’D. Alexander

  • The ancient heritage of water ice in the solar system.

    L. Ilsedore Cleeves;Edwin A. Bergin;Conel M. O. 'D. Alexander;Fujun Du

  • Interstellar oxide grains from the Tieschitz ordinary chondrite

    L. R. Nittler;C. M. O'd Alexander;X. Gao;R. M. Walker

  • The Formation Conditions of Chondrules and Chondrites

    C.M. O'd. Alexander;Jeffrey N. Grossman;D.S. Ebel;F.J. Ciesla

  • The classification of CM and CR chondrites using bulk H, C and N abundances and isotopic compositions

    Conel M. O. 'D. Alexander;Kieren T. Howard;Roxane Bowden;Marilyn L. Fogel

  • Contributors to chromium isotope variation of meteorites

    Liping Qin;Conel M. O. 'D. Alexander;Richard W. Carlson;Mary F. Horan

  • ALUMINUM-, CALCIUM-AND TITANIUM-RICH OXIDE STARDUST IN ORDINARY CHONDRITE METEORITES

    Larry R Nittler;Conel M O'd Alexander;Roberto Gallino;Roberto Gallino;Peter Hoppe

  • Organic thermometry for chondritic parent bodies

    G.D. Cody;C.M.O'd. Alexander;H. Yabuta;A.L.D. Kilcoyne

  • Establishing a molecular relationship between chondritic and cometary organic solids

    George D. Cody;Emily Heying;Conel M. O. Alexander;Larry R. Nittler

  • The microstructure of Semarkona and Bishunpur

    C.M.O'd Alexander;D.J Barber;R Hutchison

  • Origin and Evolution of Prebiotic Organic Matter As Inferred from the Tagish Lake Meteorite

    Christopher D. K. Herd;Alexandra Blinova;Danielle N. Simkus;Yongsong Huang

  • Classification of hydrous meteorites (CR, CM and C2 ungrouped) by phyllosilicate fraction: PSD-XRD modal mineralogy and planetesimal environments

    K. T. Howard;K. T. Howard;K. T. Howard;C. M. O. 'D. Alexander;D. L. Schrader;K. A. Dyl

  • The origin of chondritic macromolecular organic matter: a carbon and nitrogen isotope study.

    C. M. O'd. Alexander;C. M. O'd. Alexander;S. S. Russell;J. W. Arden;R. D. Ash;R. D. Ash

  • The Semarkona meteorite: First recorded occurrence of smectite in an ordinary chondrite, and its implications

    R. Hutchison;C.M.O. Alexander;D.J. barber

  • The nature, origin and modification of insoluble organic matter in chondrites, the major source of Earth's C and N

    C.M.O’D. Alexander;G.D. Cody;B.T. De Gregorio;L.R. Nittler

  • Deuterium enrichments in chondritic macromolecular material—Implications for the origin and evolution of organics, water and asteroids

    C.M.O’D. Alexander;S.D. Newsome;M.L. Fogel;L.R. Nittler

  • Solid-state ( 1 H and 13 C) nuclear magnetic resonance spectroscopy of insoluble organic residue in the Murchison meteorite: a self-consistent quantitative analysis

    G.D. Cody;C.M.O’D. Alexander;F. Tera

  • Origin of water and mantle-crust interactions on Mars inferred from hydrogen isotopes and volatile element abundances of olivine-hosted melt inclusions of primitive shergottites

    Tomohiro Usui;Conel M.O'd. Alexander;Jianhua Wang;Justin I. Simon

  • Chondrule formation in particle-rich nebular regions at least hundreds of kilometres across

    Jeffrey N. Cuzzi;Conel M. O'd. Alexander

  • The Compositional Structure of the Asteroid Belt

    Francesca E. DeMeo;Conel M. O'd. Alexander;Kevin J. Walsh;Clark R. Chapman

Frequent Co-Authors

Rhonda M. Stroud
Rhonda M. Stroud Arizona State University
George D. Cody
George D. Cody Carnegie Institution for Science
Marilyn L. Fogel
Marilyn L. Fogel University of California, Riverside
Michael J. Pellin
Michael J. Pellin Argonne National Laboratory
Richard W. Carlson
Richard W. Carlson Carnegie Institution for Science
Andrew M. Davis
Andrew M. Davis University of Chicago
Ian A. Franchi
Ian A. Franchi The Open University
Jason P. Dworkin
Jason P. Dworkin Goddard Space Flight Center
Amanda I. Karakas
Amanda I. Karakas Monash University
Christopher D. K. Herd
Christopher D. K. Herd University of Alberta

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