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قراءة كتاب The Geography of the Region about Devil's Lake and the Dalles of the Wisconsin With Some Notes on Its Surface Geology
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The Geography of the Region about Devil's Lake and the Dalles of the Wisconsin With Some Notes on Its Surface Geology
| Transcriber's note: | The Dalles of the Wisconsin are known today as the Wisconsin Dells. Minor punctuation errors from the original text have been corrected; any unusual capitalization from the original was kept. The formatting for lists has been standardized for easier reading. The footnotes have been placed at the end of the document instead of at the end of the page; there are links to them at their original positions in the text. I apologize for the poor quality of some of the maps; they have been made as clear as possible. |
Wisconsin Geological and Natural History Survey.
| E. A. BIRGE, Director. | C. R. VAN HISE, Consulting Geologist. |
| BULLETIN NO. V. | EDUCATIONAL SERIES NO. 1. |
THE GEOGRAPHY
OF THE
REGION ABOUT DEVIL'S LAKE
AND THE
DALLES OF THE WISCONSIN,
With Some Notes on Its Surface Geology.
BY
ROLLIN D. SALISBURY, A. M.,
Professor of Geographic Geology, University of Chicago,
AND
WALLACE W. ATWOOD, B. S.,
Assistant in Geology, University of Chicago.
MADISON, WIS.
Published by the State.
1900.
Wisconsin Geological and Natural History Survey.
BOARD OF COMMISSIONERS.
Edward Scofield,
Governor of the State.
L. D. Harvey,
State Superintendent of Public Instruction.
Charles K. Adams, President,
President of the University of Wisconsin.
Edwin E. Bryant, Vice-President,
President of the Commissioners of Fisheries.
Charles S. Slichter, Secretary,
President of the Wisconsin Academy of Sciences, Arts, and Letters.
E. A. Birge, Director of the Survey.
C. R. Van Hise, Consulting Geologist.
E. R. Buckley, Assistant Geologist.
In charge of Economic Geology.
S. Weidman, Assistant Geologist.
In charge of Geology of Wausau District.
L. S. Smith, in charge of Hydrography.
S. V. Peppel, Chemist.
F. R. Denniston, Artist.
Frontispiece
CONTENTS.
| PART I. THE TOPOGRAPHY WITH SOME NOTES ON THE SURFACE GEOLOGY. | |
| CHAPTER I. | |
| PAGE | |
| GENERAL GEOGRAPHIC FEATURES | 3 |
| I. The Plain Surrounding the Quartzite Ridges. | |
| Topography | 6 |
| Structure | 8 |
| Origin of the Sandstone and Limestone | 9 |
| Origin of the Topography | 12 |
| II. The Quartzite Ridges | 13 |
| Topography | 13 |
| The Structure and Constitution of the Ridges | 14 |
| III. Relations of the Sandstone of the Plain to the Quartzite of the Ridges | 19 |
| PART II. HISTORY OF THE TOPOGRAPHY. | |
| CHAPTER II. | |
| OUTLINE OF THE HISTORY OF THE ROCK FORMATIONS WHICH SHOW THEMSELVES AT THE SURFACE. | |
| I. The Pre-Cambrian History of the Quartzite | 23 |
| From loose Sand to Quartzite | 23 |
| Uplift and Deformation. Dynamic Metamorphism | 24 |
| Erosion of the Quartzite | 25 |
| Thickness of | |