The Geological History of Lake Superior PDF Download
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Author: Robert Bell
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 18
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Book Description
Author: Robert Bell
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 18
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Book Description
Author: Robert Bell
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 16
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Book Description
Author: Robert Bell
Publisher: Forgotten Books
ISBN: 9780428231910
Category : History
Languages : en
Pages : 22
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Book Description
Excerpt from The Geological History of Lake Superior: Read Before the Canadian Institute, Toronto, April 15th, 1899 In the talk which I am about to give on the Geological History of Lake Superior I propose to endeavour to trace the origin and develop ment Of the lake itself rather than to sketch the geology of the surround ing country. The genesis of some of the great lakes, or rather of the depressions in the continent which they occupy, has been the subject of some investigation and of much discussion and speculation among geologists, but their researches and controversies have related mostly to the lower lakes, while but little has yet been written as to the geological history of Lake Superior. It was on this account, and because I have worked for many years on and around this inland sea and have paid some attention to this matter, that I have chosen it as the subject of my address to night. Before proceeding to speak of the basin Of Lake Superior, I shall say a few words about the basins of the other great lakes, the origin of each Of which has been similar to the others, but in some respects different from that of Lake Superior. Sir Andrew Ramsay and Sir William Logan supposed them to be due principally to glacial action; that is to say, that they had been scooped out Of the rocks in which they lie, mainly by the denuding force of heavy and extensive masses Of land ice. Although the eroding or excavating power Of thick glaciers is very great, still it does not appear to have been sufficiently powerful 'to account for all that was formerly attributed to it. It has been pretty satisfactorily shown that during the glacial period their action in modify ing the surface features consisted largely in the transportation of pre viously decomposed and loosened rock. 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.
Author: Charles Richard Van Hise
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 641
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Book Description
Author: Stephen E. Kesler
Publisher: University of Michigan Regional
ISBN: 0472053809
Category : Science
Languages : en
Pages : 369
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Book Description
A much-needed exploration of Great Lakes geology
Author: Norman King Huber
Publisher: Avery Color Studios
ISBN:
Category : Travel
Languages : en
Pages : 82
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Book Description
Author: Charles Richard Van Hise
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 641
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Book Description
Author: Lorine Niedecker
Publisher: Wave Books
ISBN: 1933517662
Category : Literary Collections
Languages : en
Pages : 106
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Book Description
A reader-friendly anthology of influence—the geologic, historical, and personal history to supplement Lorine Niedecker’s poem.
Author: Ronald Lee Morton
Publisher: U of Minnesota Press
ISBN: 9781452907086
Category : Indians of North America
Languages : en
Pages : 228
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Book Description
Author: Dan R. Lynch
Publisher: Adventure Publications
ISBN: 1647550599
Category : Nature
Languages : en
Pages : 446
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Book Description
This must-have guide for Michigan, Minnesota, Wisconsin, and Ontario features full-color photographs and information to help readers identify rocks and minerals. Get the perfect guide to rocks and minerals of the Lake Superior region! With the new edition of this famous guide by Bob Lynch and Dan R. Lynch, field identification is simple and informative. This book features comprehensive entries for 75 rocks and minerals, from common rocks to rare finds. That means you’re more likely to identify what you’ve found. The authors know rocks and took their own full-color photographs to depict the detail needed for identification—no more guessing from line drawings. The entries are organized by area, so you can find rocks unique to each state or common to all three. The field guide’s easy-to-use format helps you to quickly find what you need to know and where to look. Inside you’ll find: 75 specimens of the Lake Superior region Quick Identification Guide: Identify rocks and minerals by color and common characteristics Range/occurrence maps to show where each specimen is commonly found Professional photos: Crisp, stunning images This second edition includes updated photographs, expanded information, and even more of the authors’ expert insights. With this book in hand, identifying and collecting is fun and informative.
