Palaeozoic Fossils Vol 2

Author : E. Billings
Publisher : Forgotten Books
ISBN 13 : 9781528346719
Total Pages : 194 pages
Book Rating : 4.3/5 (467 download)

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Download or read book Palaeozoic Fossils, Vol. 2 (Classic Reprint) written by E. Billings and published by Forgotten Books. This book was released on 2017-09-15 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Palaeozoic Fossils, Vol. 2 The following account of the distribution of the Gaspe limestones and shales is taken from the Geology of Canada, p. 393, 394. These strata dip south-west at an angle of twenty-four degrees, and are beautifully seen in the cliffs; which present a vertical naked face nearly 700 feet in height, on the north-east side of Gaspe promontory. The lowest limestones, 1, constitute the first step in the mountains encountered in passing from Cape Rosier to Grand Greve. The second hard calcareous band, 4, forms another step in the same ascent it makes also Cape Bon Ami, from which the grey calcareous shales, 5, present a steep slope, up to the grey shaly limestones, 6. These rise in a vertical and sometimes overhanging escarpment, up to the edge of the precipice; from which the harder beds that form the summit of the above section slope down into a valley. This valley divides the hills of the promontory into a double range, and maintains its character with some constancy further into the interior. From this valley, the succeeding members of the series are piled in a second escarpment, and constitute the loftier of the two ranges. The rocks of this part consist of divisions, 7 and 8. The entire volume of these limestones is about 2000 feet. The two lower divisions 1 and 2) are most probably Silurian about the age of the Helderberg of the New York Geologists. The upper two members (7 and 8) are nearly of the age of the Oriskany sandstone, and are, there fore, about the base of the Devonian. Divisions 4, 5, 6, may be regarded as constituting passage beds between the Upper Silurian and Devo nian. 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.