Quaternary geology of the Scipio Valley area, Millard and Juab Counties, Utah (SS-79)

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1:62,500 and 1:50,000 Geologic Maps

By: C. G. Oviatt

Quaternary deposits and structures have been mapped at a scale of 1:62,500 in a 270-square-mile area of central Utah that includes Scipio Valley, Little Valley / Mills Valley, and Round Valley. Scipio Valley and adjacent valleys to the north and south occupy structural grabens along the eastern side of the Basin and Range physiographic province. Bedrock in the surrounding mountains varies in age from Precambrian to Miocene, and the area was strongly affected by both Sevier orogenic thrust faulting and late Cenozoic normal faulting. The area is in the transition zone between the Basin and Range and Colorado Plateaus physiographic provinces.

The purpose of this report is to describe the surficial deposits of Quaternary and late Tertiary age in Round, Scipio, and Little Valleys. The map area encompasses about 270 square miles in parts of eight 7.5-minute topographic quadrangles (Fool Creek Peak, Mills, Williams Peak, Scipio North, Scipio Pass, Scipio South, Coffee Peak, and Scipio Lake). Surficial deposits were mapped on 1:30,000-scale aerial photographs in the field during the months of June and July, 1989. Field data were later transferred to 1:24,000-scale orthophotoquads, which were reduced to 1:62,500 and compiled to produce the map.

Other Information:
Published: 1992
Pages: 16 p.
Plates: 1 pl.
Scale: 1:62,500
Location: Juab County and Millard County
Media Type: Paper Publication

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