Educational Collection Of Wisconsin Rocks Classic Reprint

Author : Ulysses Sherman Grant
Publisher : Forgotten Books
ISBN 13 : 9780656050543
Total Pages : 644 pages
Book Rating : 4.0/5 (55 download)

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Download or read book Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin (Classic Reprint) written by Ulysses Sherman Grant and published by Forgotten Books. This book was released on 2019-01-04 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin The method followed in the season's field work was to visit all parts of the two areas above mentioned which were known to have rock outcrops, or in which outcrops might be reasonably expected. In. Such parts north and south traverses were made at intervals of one-half mile, or more frequently when occasion demanded. Thus, in the region where outcrops occur fre quently, the north and south section lines, the north and south quarter section lines and some of the east and west section lines were followed. The larger streams, and in fact all the streams which might be expected to cut down to the bed rock, were also followed. The outcrops seen were located carefully by pacing, and the position of each was indicated as so many paces north and so many paces west of the southeast corner of the given section. In this manner of locating paces equals one mile. Rock samples were taken from most of these outcrops. In all about 775 rock numbers and a considerably greater num ber of specimens were collected. Because of the active interest which is being manifested in the copper deposits of northern Wisconsin, it was deemed best to publish a report on the district without unnecessary delay. Accordingly this report is presented with the hope that it will be of service to those who are at present engaged in exploration for copper, or who are interested in the material development of this part of the state. It should be borne in mind, however, that this report was written before it was possible to make a care ful study of the whole district underlain by the copper-bearing rocks, and even before it was possible to make an exhaustive study of the facts and specimens collected in those areas in which the work was concentrated. Thus this report is necessarily of the nature of a preliminary rather than. Of a final report. At the same timeit should be stated that the essential facts concern mg the geological structure of the areas examined, the geograph. 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.