Granite 1900 Vol 10 Classic Reprint

Author : Royal Geological Society of Ireland
Publisher : Forgotten Books
ISBN 13 : 9781528551267
Total Pages : 228 pages
Book Rating : 4.5/5 (512 download)

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Download or read book Journal, 1872, Vol. 10 (Classic Reprint) written by Royal Geological Society of Ireland and published by Forgotten Books. This book was released on 2017-09-12 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal, 1872, Vol. 10 This granite, wherever it occurs, has been deeply disintegrated, sometimes to a depth of one or two hundred feet; Whilst everywhere, imbedded in the soft yielding matrix, there occur nodules of more quartzose character, which have resisted the effects of time and chemical change. These masses are usually of a lozenge shape, and vary in size from a few feet to several hundred. The original quartz veins of the granite, broken into small fragments by the forces which have operated on the surrounding rock, still traverse the disintegrated mass in all di rections; whilst round the enclosed nodules the concentric structure of the rock can generally be traced. In the higher grounds the soft yield ing matrix has generally been removed by denudation, leaving these pseudo-boulders perched all over the granite hills, presenting an aspect, to a passing eye, not unlike the boulder formations of more northern latitudes. I have been particular in describing the character of these, as they produce a marked feature in the scenery of the granite districts, and have led to erroneous ideas on the southern limit of the glacial drift, which, in Professor Ansted's Elementary Treatise, is described as reaching as far as Macao. 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.