Geologic map of the Pigeon Mountain quadrangle, Box Elder County, Utah (M-94)

In stock
1:24,000 Geologic Maps

By: L. L. Glick and D. M. Miller

The Pigeon Mountain quadrangle in northwestern Utah includes lowlands of the Great Salt Lake Desert, the northern end of the Little Pigeon Mountains, and most of Pigeon Mountain. In the northwest corner of the quadrangle is one of several hills near the town of Lucin. The summit of Pigeon Mountain, at an elevation of 1645 m, is the highest point in the quadrangle. Surrounding the mountains is flatland that slopes gently to the east and south; it ranges in elevation from 1372 m to 1309 m. Mountainous parts of the Pigeon Mountain quadrangle are underlain by Permian sedimentary rocks of the Cordilleran miogeocline. These strata, which accumulated under shallow-marine conditions on the ancient continental shelf, are generally similar to those exposed at Lemay Island to the south and in the Pilot Range about 6 km to the west, but they differ in important respects from those exposed to the north at Bovine Mountain, and to the east in the Newfoundland Mountains. The remainder of the quadrangle is covered by surficial deposits of Quaternary age, including alluvium, lake sediments, and eolian sand. Much of the Quaternary sediment was deposited in Pleistocene Lake Bonneville, which covered virtually the entire quadrangle at its high stand. The major structural features and physiography of the quadrangle-mountain ranges composed of pre-Cenozoic rocks and broad valleys filled with thick sequences of Cenozoic strata-resulted from one or more episodes of upper crustal extension in Neogene time.

Other Information:
Published: 1987
Pages: 9 p.
Plates: 2 pl.
Scale: 1:24,000
Location: Box Elder County
Media Type: Paper Map

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