Date of Award:
5-1972
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Geology
Committee
Robert Q. Oaks, Jr.
Abstract
The Swan Peak Formation in north-central Utah thickens westward, from zero feet near Logan to 687 feet in the Promontory Range. The unit is subdivided into three distinct members: 1) A lower member of interbedded shales, limestones, and quartzites; 2) A middle member of interbedded shales and brown quartzites; and 3) An upper member of white quartzites. The Swan Peak thins southward toward the east-west-trending Tooele Arch in the area of study; this thinning probably reflects both lesser deposition and greater subsequent erosion there than elsewhere. The lower member in northern Utah probably was deposited in shallow-shelf and/or transitional shorefaceshelf environments. The middle member represents shoreface to intertidal environments. Western miogeosynclinal equivalents of the lower and middle members are more carbonate-rich, the results of their more basinward position and thus greater distance from terrigenous sediment sources. The upper member was deposited in a shallow-shelf to intertidal environment by strong, predominantly south-flowing currents.
Checksum
562bd6e13caf890b881977614ec5424a
Recommended Citation
Francis, George Gregory, "Stratigraphy and Environmental Analysis of the Swan Peak Formation and Eureka Quartzite, Northern Utah" (1972). All Graduate Theses and Dissertations. 1684.
https://digitalcommons.usu.edu/etd/1684
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