Geologic map of The Divide quadrangle, Washington County, Utah (M-197)

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1:24,000 Geologic Maps

By: J. M. Hayden

The Divide quadrangle in southwest Utah is bisected north-south by the Hurricane fault zone. The east half of the quadrangle is part of the Colorado Plateau whereas the west half is part of the transition zone that leads into the Basin and Range Province farther west. In the footwall of the Hurricane fault zone, the Hurricane Cliffs expose just over 1,000 feet of Permian rocks, including the upper part of the Queantoweap Sandstone and the Toroweap and Kaibab Formations. The Triassic Moenkopi Formation unconformably overlies paleotopography eroded into the Kaibab Formation and is about 1,700 feet thick. The Moenkopi is unconformably overlain by the Chinle Formation, which averages 725 feet thick. These two Triassic formations form Little Creek Mountain along the east edge of the quadrangle; they are also partially exposed in Warner Valley in the southwest part of the quadrangle. Slivers of Triassic rocks are also present in the Hurricane fault zone. Jurassic strata exposed in the quadrangle consist of the Moenave Formation, 400 feet thick; the Kayenta Formation, 900 feet (270 m) thick; and the basal 1,000 feet of the Navajo Sandstone. Normal faults repeat the Moenave Formation several times in Warner Valley. The Kayenta Formation and Navajo Sandstone comprise Sand Mountain in the northwest part of the quadrangle.

Other Information:
Published: 2004
Pages: 32 p.
Plates: 2 pl.
Scale: 1:24,000
Location: Washington County
Media Type: Paper Map

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