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Gilby Jepson

Gilby Jepson

Assistant Professor

Gilby Jepson.

gjepson@ou.edu

Sarkeys Energy Center, 920

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My research involves the application of isotope geochemistry and high-to-low temperature thermochronology to structural and tectonic questions in orogenic systems. My approach blends both laboratory and field-based approaches, with the current focus on the formation and collapse of the North American Cordillera and the accretion-deformation history of Central Asia (Tianshan-Altai and the Pamir-Tibet-Himalaya orogens). In addition to application, I am always looking for new ways to do and use geochemistry and thermochronology. Currently, I am developing fission-track thermochronometers in novel mineral systems (e.g., monazite fission-track) and integrating geochronology and geochemistry (e.g., apatite fission-track, U-Pb, and trace elements). Finally, tectonic events and deformation rarely occur in isolation. In collaboration with colleagues from paleoclimate and sedimentology backgrounds, I seek to interrogate how flux in the global paleoclimate influences the distribution of global orogens.


  • Ph.D., 2018, University of Adelaide
  • B.S., Hons., 2014, University of Adelaide

  • Tectonics
  • Structural geology
  • Thermochronology
  • Geochronology
  • Geochemistry

  • Physical Geology
  • Field Geology
  • Orogenic Systems
  • Volcanoes and Earthquakes

  • Jepson, G., B. Carrapa, George, S. W. M., Reeher, L. J., Kapp, P. A., Davis, G. H., Thomson, S. N., Amidori, C., Clinkscales, C., Jones, S., Gleadow, A. J. W., Kohn, B. P, (2022), Where did the Arizona-plano go? Middle to lower crustal processes required, Journal of Geophysical Research: Solid Earth, https://doi.org/10.1029/2021JB023850
  • Yang, F., Jepson, G. Liu, C., Qian, Z., Zhang, X., Zhang, Y., Glorie, S., (2021), Uplift-exhumation and preservation of the Yumugou Mo-W deposit, East Qinling, China: Insights from multiple apatite low-temperature thermochronology, Ore Geology Reviews , https://doi.org/10.1016/j.oregeorev.2021.104670
  • Jepson, G., B. Carrapa, J. Gillespie, R. Feng, P. G. DeCelles, P. A. Kapp, C. Tabor, J. Zhu, (2021), Climate as the great equalizer of continental-scale erosion, Geophysical Research Letters, https://doi.org/10.1029/2021GL095008
  • Jepson, G., Glorie, S., Khudoley, A. K., Malyshev, S. V., Gillespie, J., Glasmacher, U. A., Carrapa, B., Soloviev, A. V., and Collins, A. S., (2021), The Mesozoic exhumation history of the Karatau-Talas range, western Tian Shan, Kazakhstan-Kyrgyzstan, Tectonophysics, https://doi.org/10.1016/j.tecto.2021.228977
  • Gillespie, J., Glorie, S., Jepson, G., Zhimulev, F. I., Gurevich, D., Daniík, M., and Collins,  A. S., (2021), Inherited structure as a control on late Paleozoic and Mesozoic exhumation of the Tarbagatai Mountains, southeastern Kazakhstan, Journal of the Geological Society, https://doi.org/10.1144/jgs2020-121
  • Jepson, G., Carrapa, B., George, S. W. M., Triantafyllou, A., Egan, S. M., Constenius, K. N., Gehrels, G. E., and Ducea, M. N., (2021), Chemical Geology, Resolving mid- to upper-crustal exhumation through apatite thermochronology and petrochronology, 565, 120071, https://doi.org/10.1016/j.chemgeo.2021.120071
  • Gottardi, R., McAleer, R., Casale, G., Borel, M., Iriondo, A., Jepson, G., (2020), Exhumation of the Coyote Mountains metamorphic core complex (AZ): implications for orogeniccollapse of the southern North American Cordillera, Tectonics, 29(8), e2019TC006050, https://doi.org/10.1029/2019TC006050
  • Jepson, G., Glorie, S., Konopelko, D., Mirkamalov, R., Mamadjanov, Y., Gillespie, J., Daniík, M., and Collins, A., (2018), The low-temperature thermo-tectonic evolution of the western Tian Shan, Uzbekistan, Gondwana Research, 64, 122-136, https://doi.org/10.1016/j.gr.2018.08.003
  • Jepson, G., Glorie, S., Konopelko, D., Mirkamalov, R., Mamadjanov, Y., Gillespie, J., Daniík, M., and Collins, A., (2018), Low-temperature thermochronology of the Chatkal-Kurama terrane (Uzbekistan-Tajikistan): insights into the Meso-Cenozoic thermal history of the western Tian Shan, Tectonics, 37(10), 3954-3969, https://doi.org/10.1029/2017TC004878
  • Jepson, G., S. Glorie, D. Konopelko, J. Gillespie, M. Danisík, E. J. Noreen, Y. Mamadjanov, and A. Collins, (2018), Thermochronological insights into the structural contact between the Tian Shan and Pamirs, Tajikistan, Terra Nova, 30(2), 95-104, https://doi.org/10.1111/ter.12313