The Domes of Nova Scotia, Vol. 1 PDF Download

Author: Thomas Arthur Rickard
Publisher: Forgotten Books
ISBN: 9780265854396
Category :
Languages : en
Pages : 110

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Book Description
Excerpt from The Domes of Nova Scotia, Vol. 1: General Geology This domical structure leads to interesting results. Owing to erosion, the crests of the domes have been degraded to the level of the present surface, on the plane of which the bedding now assumes an elliptical form. Any vein of quartz deposited along a bedding plane will reproduce this structure. It on a flank of the dome, north or south, it will have a nearly straight strike, but in the approach to the ends, east and west, of the dome, it will curve in accord with the fundamental structure. At the nose, ' or extreme ends of the longer axis of a dome, the quartz will be curved to a bow. All this is on the plane of the surface. If followed under. Ground such a quartz vein will form a saddle, by being curved with the bedding of the anticlinal fold whose axis runs east and west. Again, owing to the synclinal fold, whose axis runs north and south, the saddle will pitch or slope if exposed at the east or west end of the dome, where the strata plunge in accord with the synclinal curvature of the cross-fold. This description will be made clearer by reference to the accompanying diagram, which, in effect, exhibits the appearance of a model if made in glass. The top of the block represents the geological surface; the elliptical outcmps are evident at the west end of the curving strata are shown the quartz veins. These in cross-section, as exposed at the left side of the block. Constitute saddles, ' the pitch of which is indicated. 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.