World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
37
Citations
17894
World Ranking
6671
National Ranking
2336

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

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

Exploring Earth Science opens numerous opportunities not just in research but in diverse related fields. Many students consider pursuing complementary degrees online to expand their expertise and career options. For example, those interested in creative documentation of natural phenomena might explore military friendly online photography degree programs which offer flexible study options and specialized skills beneficial for environmental communication.

Language skills also enrich scientific careers, especially for professionals working in global settings. Programs like online spanish degree courses provide practical language proficiency that enhances collaboration in international projects.

Military veterans transitioning to civilian careers can benefit from tailored programs, such as the online spanish degree for military veterans, which offer supportive learning environments and credit for prior experience.

For those leaning towards the intersection of science and art, pursuing an mfa degree online can open doors to careers in scientific illustration, environmental storytelling, and media production, combining analytical and creative skills.

Best Scientists Citing Marc J. Defant

Trending Scientists

Recently Published Articles