Publisher's Synopsis
Excerpt from Geology and Economic Resources of the Larder Lake District, Ont. And Adjoining Portions of Pontiac County, Que
The Pontiac schist, unlike the Keewatin, consists entirely of sediments, which early in pro-cambrian time were transformed into crystalline schists. They form a very extensive series of rocks, occupying nearly the whole of the Quebec portion of the district included in the accompanying map. Since they are highly quartzose and of sedimentary origin, it necessarily follows that they have been derived from still more ancient relatively acid rocks, although such have not been recognized in the region.
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.
