Abstract
The region of Shoshone Canyon is significant, because it contains both overthrust and block-faulted structures in close association. The stratigraphic section comprises 3,200 feet of conformable, marine, Paleozoic sediments, 800 feet of Permo-Triassic red beds and over 5,000 feet of Jurassic and Cretaceous sandstones and shales. This is notably thinner than the corresponding section in the overthrust belt of southeastern Idaho, but greater than that in the front ranges of Wyoming and Colorado. Flexures, which appear as folds in the Paleozoic and Mesozoic strata, have been traced with certainty to sharply faulted blocks of the underlying pre-Cambrian complex. Distinct from these is the Heart Mountain overthrust which places Paleozoic limestones above sediments of Mesozoic and early Tertiary age. The two types of structure are shown to differ in age and in the thickness of rocks involved. Upfaulting of the pre-Cambrian with flexing of the sediments took place in late Upper Cretaceous. These uplifts were ext...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
