Download or read book The Geology of the Lake Superior Region (Classic Reprint) written by Charles Richard Van Hise and published by Forgotten Books. This book was released on 2017-11-18 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Geology of the Lake Superior Region Rates of royalty and value of ore in the ground. Origin of the ores of the Lake Superior pre-cambrian sedimentary iron-bearing formations Outline of discussion The iron ores are chiefly altered parts of sedimentary rocks Conditions of sedimentation.. Iron-bearing formations mainly chemical sediments Order of deposition of the iron-bearing sediments Are the iron-bearing formations terrestrial or subaqueous sediments? 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.