Geology of the Deadman Gulch drape fold and the surrounding area, Upper Spring Creek Canyon, Gunnison County, Colorado / by Ray L. Chilcote.

Author/creator Chilcote, Ray L. author.
Other author Mauger, Richard L. (Richard Leroy), 1936- degree supervisor.
Other author East Carolina University. Department of Geology.
Format Theses and dissertations
Production1996.
Descriptionvi, 57 leaves : color illustrations, maps (1 color) ; 28 cm
Supplemental ContentAccess via ScholarShip
Subjects

Summary The Deadman Gulch drape fold, located on the western slope of the Sawatch Range, central Colorado, is a Laramide (Late Cretaceous to Early Tertiary) monoclinal flexure involving Proterozoic basement and Paleozoic strata. Burial depths of 5-7 kms allowed the Lower Paleozoic strata to act ductily. The study area is on the northeastern edge of a major fault block. The basement thrust fault (forcing member) is not exposed. The drape fold is well exposed along Spring Creek canyon. The southeast end of the drape fold is hidden beneath Lower Paleozoic strata. An oblique/tear fault is located on the northwest end of the drape fold. Offset of the tear fault cannot be measured due to limitations of Paleozoic outcrops. However, Pennsylvanian strata lie against Cambrian strata, establishing a minimum offset. Deep hydrothermal waters moving along basement faults dissolved the Leadville Limestone, Chaffee Limestone and Ordovician units locally. A jasperoid unit was deposited along these fault conduits (and laterally) as a void filling deposit and replacement mineral.
General noteOne map on 1 folded leaf in pocket.
General noteSubmitted to the faculty of the Department of Geology.
General noteAdvisor: Richard L. Mauger
Dissertation noteM.S. East Carolina University 1996
Bibliography noteIncludes bibliographical references (leaves 52-58).
Genre/formdissertations.
Genre/formAcademic theses.
Genre/formAcademic theses.
Genre/formThèses et écrits académiques.

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