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Marc J. Defant 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 Marc J. Defant 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+

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

Marc J. Defant 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 Marc J. Defant 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+

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

Overview

Marc J. Defant is affiliated with the University of South Florida in the United States. Their research spans several fields within the social sciences and psychology, focusing heavily on gender studies and related interdisciplinary topics.

Their recent scholarly output includes three papers published in 2025. These works explore issues relating to gender dynamics, evolutionary psychology, and ethical considerations in gender-affirming care.

  • "Evolutionary Basis of Gender Dynamics: Understanding Patriarchy, the Pay Gap, and the Glass Ceiling" (2025), Journal of Libertarian Studies
  • "Reevaluating gender-affirming care: biological foundations, ethical dilemmas, and the complexities of gender dysphoria" (2025), Journal of Sex & Marital Therapy
  • "Evolutionary Psychology and the Crisis of Empirical Rigor in Feminist Studies" (2025), Sexuality & Culture

Their frequent publication venues reflect a focus on multidisciplinary approaches to social and sexual behavior topics, having published at least once in Journal of Libertarian Studies, Journal of Sex & Marital Therapy, and Sexuality & Culture.

Marc J. Defant's main fields of study include:

  • Social Sciences
  • Psychology

Within these broad categories, their subfields of study consist of:

  • Gender Studies
  • Experimental and Cognitive Psychology
  • Sociology and Political Science
  • Social Psychology
  • Reproductive Medicine

The core research topics covered by their publications can be summarized as:

  • Gender Roles and Identity Studies
  • Evolutionary Psychology and Human Behavior
  • Marriage and Sexual Relationships
  • LGBTQ Health, Identity, and Policy
  • Reproductive Health and Technologies

Best Publications

  • Derivation of some modern arc magmas by melting of young subducted lithosphere

    Marc J. Defant;Mark S. Drummond

  • A model for Trondhjemite-Tonalite-Dacite Genesis and crustal growth via slab melting: Archean to modern comparisons

    Mark S. Drummond;Marc J. Defant

  • Origin of mesozoic adakitic intrusive rocks in the Ningzhen area of east China: Partial melting of delaminated lower continental crust?

    Ji-Feng Xu;Ryuichi Shinjo;Marc J. Defant;Qiang Wang

  • Petrogenesis of slab-derived trondhjemite–tonalite-dacite/adakite magmas

    M. S. Drummond;M. J. Defant;P. K. Kepezhinskas

  • Trace element and SrNdPb isotopic constraints on a three-component model of Kamchatka Arc petrogenesis

    Pavel Kepezhinskas;Frank McDermott;Marc J. Defant;Alfred Hochstaedter

  • Mount St. Helens: Potential example of the partial melting of the subducted lithosphere in a volcanic arc

    Marc J. Defant;Mark S. Drummond

  • High field strength element enrichment of Pliocene-Pleistocene island arc basalts, Zamboanga Peninsula, Western Mindanao (Philippines)

    Fernando G. Sajona;René C. Maury;Hervé Bellon;Joseph Cotten

  • The geochemistry of young volcanism throughout western Panama and southeastern Costa Rica: an overview

    M. J. Defant;T. E. Jackson;M. S. Drummond;J. Z. De Boer

  • Progressive enrichment of island arc mantle by melt-peridotite interaction inferred from Kamchatka xenoliths

    Pavel Kepezhinskas;Marc J. Defant;Mark S. Drummond

  • Initiation of subduction and the generation of slab melts in western and eastern Mindanao, Philippines

    Fernando G. Sajona;René C. Maury;Hervé Bellon;Joseph Cotten

  • Evidence suggests slab melting in arc magmas

    Marc J. Defant;Pavel Kepezhinskas

  • Metasomatism of the sub-arc mantle inferred from trace elements in Philippine xenoliths

    René C. Maury;Marc J. Defant;Jean-Louis Joron

  • Dacite Genesis via both Slab Melting and Differentiation: Petrogenesis of La Yeguada Volcanic Complex, Panama

    Marc J. Defant;Phil M. Richerson;Jelle Z. De Boer;Robert H. Stewart

  • Na Metasomatism in the Island-Arc Mantle by Slab Melt—Peridotite Interaction: Evidence from Mantle Xenoliths in the North Kamchatka Arc

    Pavel K. Kepezhinskas;Marc J. Defant;Mark S. Drummond

  • The nature of metasomatism in the sub-arc mantle wedge: evidence from Re–Os isotopes in Kamchatka peridotite xenoliths

    Elisabeth Widom;Pavel Kepezhinskas;Mark Defant

  • Isotope and trace element evidence for three component mixing in the genesis of the North Luzon arc lavas (Philippines)

    F. McDermott;M. J. Defant;C. J. Hawkesworth;R. C. Maury

  • Geochemistry and tectonic setting of the Luzon arc, Philippines

    Marc J. Defant;Dario Jacques;Rene C. Maury;Jelle De Boer

  • The geochemistry and tectonic setting of the northern section of the Luzon arc (The Philippines and Taiwan)

    Marc J Defant;RenéC Maury;Jean-Louis Joron;Mark D Feigenson

  • Lithium isotope evidence for light element decoupling in the Panama subarc mantle

    Paul B. Tomascak;Jeffrey G. Ryan;Marc J. Defant

  • Fusion de la croute oceanique dans les zones de subduction/collision recentes; l'exemple de Mindanao (Philippines)

    Rene C. Maury;Fernando G. Sajona;Manuel Pubellier;Herve Bellon

Frequent Co-Authors

René C. Maury
René C. Maury University of Western Brittany
Hervé Bellon
Hervé Bellon University of Western Brittany
Mark D. Feigenson
Mark D. Feigenson Rutgers, The State University of New Jersey
Frank McDermott
Frank McDermott University College Dublin
J.L. Joron
J.L. Joron Centre National de Recherches Météorologiques
Joseph Cotten
Joseph Cotten University of Western Brittany
Manuel Pubellier
Manuel Pubellier École Normale Supérieure
Chris J. Hawkesworth
Chris J. Hawkesworth University of Bristol
Jon P. Davidson
Jon P. Davidson Durham University
Ryuichi Shinjo
Ryuichi Shinjo University of the Ryukyus

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