Tectonic History of the Western United States

GEOL 5690

3 credits, Spring 2024, (10:10-11:00 MWF, BESC 355, or we will move time if necessary).

Instructor: Craig Jones, BESC 440C, x2-6994, cjones@colorado.edu

The western U.S. has had a varied and complex geologic history providing considerable insight into tectonic processes important in earth history. Interpretation of this history requires the integration of data and analyses from a number of different disciplines. This course provides background both in terms of the geologic events of the western U.S. and the techniques and models used to infer that history. This class will include a brief description of some of the tools of tectonics, including paleomagnetism, geobarametry, geothermometry, geodynamic modelling, and some elements of structural geology and stratigraphy.

Structural geology and at least one semester of college physics and calculus are strongly recommended.

Some of the topics to be discussed include:

  • Precambrian rifting event(s) (evidence from stratigraphy interpreted with thermal subsidence models, magnetostratigraphy and isotopic tracers)
  • Paleozoic passive margin to Antler/Ancestral Rocky/Ouachita tectonics (including seismic reflection profiling, stratigraphy, and the application of tectonostratigraphic terranes)
  • the accretion of exotic terrains (paleomagnetism and tectonostratigraphy), development of igneous batholiths (petrology and isotope geochemistry with a dash of geophysics),
  • development of a fold-and-thrust belt (structural analysis, physical models of orogenesis),
  • Laramide tectonics (stratigraphy, flexural and isostatic models, isotope geochemistry, paleomagnetism and Baja/British Columbia),
  • initiation and development of extensional tectonics (geobarometry/geothermometry, stratigraphy, geochronology of structural elements, plate tectonic reconstructions),
  • uplift of the western Cordillera (paleofloral analysis, geomorphology, climatic considerations)
  • transition from convergent to transform plate motions (plate reconstructions, paleomagnetism, stratigraphy, reflection seismology, physical models)
  • examination of hazards and ongoing deformation from the geohistorical perspective (could involve geodesy, geophysical models, scarp dating)


Please send mail to cjones@colorado.edu if you encounter any problems or have suggestions.

GEOL5690 home | C. H. Jones | CIRES | Dept. of Geological Sciences | Univ. of Colorado at Boulder

Last modified at October 13, 2023 10:11 AM