Dr. Thomas D. Hoisch
PhD in Geological Sciences, University of Southern
MS in Geology, Vanderbilt University, 1982
BA in Geology Pomona College, 1979
Office: Geology (bldg #12), room 227
Dr. Hoisch pursues studies in the area of Metamorphic Petrology with the goal of inferring
the tectonic processes associated with burial and exhumation. He has conducted
research throughout the western US, focusing on problems related to Cordilleran
orogenesis. Dr. Hoisch integrates several approaches, thermodynamic modeling of mineral
chemistries to establish pressure-temperature (P-T) paths, 2-d numerical thermal
modeling of thrusts and detachments, thermochronology, and field relationships. In addition, he utilizes several techniques to evaluate P-T conditions and paths
(thermobarometry, calculation of pseudosections, differential thermodynamics). In order to place P-T paths into a
quantifiable tectonic context, he performs numerical simulations of the thermal
effect of thrusting and exhumation using planar and listric fault geometries
using computer codes he has published. Various geochronologic techniques are
employed to determine the timing of garnet growth and the cooling of an area.
Cooling histories are determined mainly by Ar-Ar thermochronology. In recent
studies, he has determined garnet ages using the Lu-Hf method and the in situ
dating of co-crystallized monazite inclusions. The geochronologic data combine with the P-T
path data to provide the constraints necessary to prepare numerical simulations
of thermal history and infer both rate the rate of slip and dip along faults
that buried the rocks, leading to their metamorphism, and their subsequent
Wells, M.L., and Hoisch, T.D, 2012,
Reply to comment by E.L. Miller, A. Konstantinou, and A. Strickland on “Geodynamics of synconvergent extension and
tectonic mode switching: constraints from the Sevier-Laramide orogeny.” Tectonics, 31, TC4016,
M.L., Hoisch, T.D., Cruz-Uribe, A.M., and Vervoort, J.D., 2012, Geodynamics of
synconvergent extension and tectonic mode switching: constraints from the Sevier-Laramide
orogen: Tectonics,,v. 31, TC1002, doi:10.1029/2011TC002913, 2012, 20 p.
Hoisch, T.D., Austin, B.A., Newell, S., and Manone,
M.F., 2010, Application of tablet PCs to lecture demonstrations on mineral
optics: J. Geoscience Education, v. 58,
Hoisch, T.D., and Bowie, J.I.,
2010, Assessing factors that influence
the recruitment of majors from introductory geology classes at Northern Arizona
University. J. Geoscience Education, v. 58, p. 166-176.
Hoisch, T.D., 2010, Student perceptions of geology and
implications for choosing among different science majors: Geoscience Currents #36, American Geological
Hoisch, T.D, Wells, M.L., and Grove, M., 2008, Age
trends in garnet-hosted monazite inclusions from upper amphibolite facies
schist from the Grouse Creek Mountains, Utah.
Geochim. Cosmochim Acta, v. 72, p. 5505-5520.
M.L., Spell, T.L., Hoisch, T.D., and Zanetti, K.A., 2008, Laserprobe 40Ar/39Ar
dating of strain fringes: Mid-Cretaceous
synconvergent orogen-parallel extension in the interior of the Sevier
orogen: Tectonics, v. 27, TC3012, doi:10.1029/2007TC002153.
B.C., and Hoisch T.D, 2008, Conditions of metamorphism of the Colorado Yule
Marble: Mountain Geologist, v. 45, p. 69-76.
M.L., and Hoisch, T.D., 2008, The role of mantle delamination in widespread
Late Cretaceous extension and magmatism in the Cordilleran orogen, western
United States: Geological Society of
America Bull., v. 120, p. 515-530.
C.R., Hoisch, T.D., and Wells, M.L., 2007, Construction of a composite
pressure-temperature path: revealing the
synorogenic burial and exhumation history of the Sevier hinterland,
U.S.A.: Journal of Metamorphic Geology,
v. 25, p. 915-934
For a complete list of publications and additional information, please download Thomas Hoisch's CV.