Dr. Marlon Jean

Marlon M. Jean, Ph.D.

Term Assistant Professor
Department of Geological Sciences
(907) 786-6848


  • Ph.D., 2012. Utah State University; The Chemical Evolution of Continental and Oceanic Lithosphere: Case Studies in the US Cordillera.
  • M.Sc., 2007. California State University, Fresno.
  • B.S., 2004. University of Michigan - Ann Arbor.

Teaching Responsibilities

  • GEOL A111L: Physical Geology Lab
  • GEOL A320: Volcanology
  • GEOL A321: Mineralogy
  • GEOL A322: Igneous and Metamorphic Petrology
  • GEOL A480: Geologic Field Methods

Research Interests

The Mantle constitutes arguably Earth’s most important and accessible geochemical reservoir, which is the reason why it has been the primary focus of my research. In particular, I integrate intensive fieldwork with geochemistry, in order to quantify the chemical variability of the mantle and mantle-derived products to constrain their origins and histories. This approach (1) brings together a diverse multi-disciplinary, international community of a mixture of early career scientists to distinguished professors; (2) cultivates an intellectual environment, key for undergraduate and graduate students, that crosses discipline boundaries and thus further opens the doors for knowledge dissemination and integrative research; and (3) takes advantage of state-of-the-art analytical tools.

My current research fields (listed below) advance a basic understanding of fundamental petrologic questions facing our profession today and supports a wide range of broadly integrated research approaches, including field campaigns, experimental and geochemical studies, and projects both large and small. The results of these studies can be inserted into an already rich framework of geological, geochemical, and geophysical data to further understand the chemical evolution of our Earth and Solar System:

  • Mantle wedge petrogenesis
  • Continental magmatic systems
  • Mantle plume volcanism
  • Oceanic crust accretion
  • Lunar and Martian petrogenesis
  • Economic geology
  • Scientific drilling of volcanic provinces


Recent Publications

Total publications: 10
Contact Dr. Jean for reprints.

Jean MM, Christiansen EH, Champion DE, Vetter SK, Phillips WM, Schuth S, Shervais JW (2018) Caldera Life-cycles of the Yellowstone Hotspot track: Death and Rebirth of the Heise Caldera (2018). Accepted Manuscript, Journal of Petrology.

Jean MM, Shervais JW (2017) The Distribution of Fluid Mobile and Other Incompatible Trace Elements in Orthopyroxene from Mantle Wedge Peridotites. Chemical Geology, v. 457, p. 118–130.

Jean MM, Taylor LA, Howarth GH, Peslier AH, Fedele L, Bodnar RJ, Guan Y, Doucet LS, Ionov DA, Logvinova A, Sobolev NV, Golovin AV (2016) Olivine inclusions in Siberian diamonds and mantle xenoliths: Contrasting water and trace-element contents. Lithos, v. 265, p. 31–41.

Jean MM, Hanan BB, Shervais JW (2014) Yellowstone hotspot-continental lithosphere interaction. Earth & Planetary Science Letters, v. 389, p. 119–131.

Gillis KM, Snow JE, Klaus A, Abe N, Adriao AB, Akizawa N, Ceuleneer G, Cheadle MJ, Faak K, Falloon TJ, Friedman SA, Godard M, Guerin G, Harigane Y, Horst AJ, Hoshide T, Ildefonse B, Jean MM, John BE, Koepke J, Machi S, Maeda J, Marks NE, McCaig AM, Meyer R, Morris A, Nozaka T, Python M, Saha A, Wintsch RP (2013) Primitive layered gabbros from fast-spreading lower oceanic crust. Nature, v. 505, p. 204–207; doi:10.1038/nature12778.