Book Description

Excerpt from Geology of Lower Lake Quadrangle, California To His Excellency The Honorable Earl Warren Governor of the State of California Sir: I have the honor to transmit herewith Bulletin 166, Geology of Lower Lake Quadrangle, California, prepared under the direction of Olaf P. Jenkins, Chief of the Division of Mines, Department of Natural Resources. In addition to a descriptive text, the bulletin includes also a colored detailed geologic map and other maps, charts, and photographs. The report represents the results of an investigation by James C. Brice who carried on the work in fulfillment of the requirements of the doctorate at the University of California. Supplementing the descriptive geology is a section on economic mineral deposits, prepared in part by J. Grant Goodwin, a member of the staff of the Division of Mines. The Lower Lake quadrangle lies nearly wholly in Lake County, though the southwest corner enters Sonoma County. Economic minerals described include quicksilver, sulphur, chromite, asbestos, borax, diatomaceous earth, manganese, copper, crushed rock for cement blocks, vesiculated obsidian for plaster sand, and gravel for aggregate. This bulletin represents one of the results of the Division of Mines many cooperative projects with the University of California. 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.