Report on the Geology of the High Plateaus of Utah, 1880: With Atlas (Classic Reprint)

Report on the Geology of the High Plateaus of Utah, 1880: With Atlas (Classic Reprint)
ISBN-10
1330618947
ISBN-13
9781330618943
Category
Science
Pages
398
Language
English
Published
2015-09-27
Author
Clarence E. Dutton

Description

Excerpt from Report on the Geology of the High Plateaus of Utah, 1880: With Atlas The Colorado Plateaus extend from southern Wyoming through western Colorado and eastern Utah far into New Mexico and Arizona. They are bounded on the north by the Wind River and Sweetwater Mountains, on the east by the Park Mountains, on the south by the Desert Range Region, and on the west by the Basin Range Region. The Plateaus are chiefly drained by the Colorado River, but a small area on the northwest is drained into Shoshone River, another on the northeast into the Platte River, still another on the southeast into the Rio Grande del Norte, and finally the western margin is drained by the upper portions of the Sevier, Provo, Ogden, Weber, and Bear Rivers. The general elevation is about 7,000 feet above the level of the sea - varying from 5,000 to 12,000 feet. The ascent from the low, desert plains on the south is very abrupt - in many places by a steep and almost impassable escarpment. In the Plateau Province an extensive series of sedimentary formations appear, embracing Paleozoic, Mesozoic, and Tertiary strata, but crystalline schists and granites are found in some of the deep canons. A marked unconformity exists between the Silurian and Devonian rocks; another between the Devonian and Carboniferous; another, but not so well marked, between the Carboniferous and Mesozoic, and lastly an unconformity between Cretaceous and Tertiary is usually well defined. The Plateaus have been above the sea since the close of the Cretaceous period but during early Tertiary times extensive lakes existed throughout the Province. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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