The Principles of Economic Geology (Classic Reprint)

The Principles of Economic Geology (Classic Reprint) PDF

Author: William Harvey Emmons

Publisher: Forgotten Books

Published: 2017-09-12

Total Pages: 628

ISBN-13: 9781528152105

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Excerpt from The Principles of Economic Geology Deposits that have been precipitated from aqueous solutions in and along fractures in rocks receive but scant attention in'the other branches Of geologic science as now developed, and the study Of such deposits is especially appropriate in the economic branch. Certain definitions, most of which refer to veins or to vein formation, are given below. The list is not exhaustive; the student is advised to refer to the index for other definitions that are introduced at appropriate places in the text. An ore is a mineral or association Of minerals that may, under favorable conditions, be worked commercially for the extraction of one or more metals. 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.

Economic Geology of the United States (Classic Reprint)

Economic Geology of the United States (Classic Reprint) PDF

Author: Heinrich Ries

Publisher:

Published: 2015-07-09

Total Pages: 534

ISBN-13: 9781331031994

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Excerpt from Economic Geology of the United States The following work on the Economic Geology of the United States covers essentially the ground which is gone over in the elementary course in this subject in Cornell University, but it is hoped that it will prove useful as a text-book in other colleges. The mode of arrangement is markedly different from that found in other books on the same subject, in that the nonmetallic minerals are discussed first and the metallic minerals last. This, to the author, seems the most desirable method of treatment, for the reason that the non-metallics are not only the most important, the value of their production having exceeded the metallics by over one hundred and fifty million dollars in 1903, but also because it leads from a discussion of the simpler to the more complex forms of mineral deposits. It has not been thought desirable to include a chapter on geologic and physiographic principles, since the space which could be allotted to it is altogether too small, and, moreover, the study of economic geology presupposes a knowledge of geology and mineralogy on the part of the student. While the references given at the end of each chapter do not include every paper that has been written on the subject to which they refer, still it is believed that they are sufficiently numerous to permit one to follow out the subject in considerable detail if he so desire. In the preparation of the manuscript all available sources of information have been freely drawn upon, and the numbers in parentheses in the text refer to the numbered references at the end of each chapter. 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.

The Principles of Economic Geology

The Principles of Economic Geology PDF

Author: William Harvey Emmons

Publisher: Forgotten Books

Published: 2015-06-17

Total Pages: 624

ISBN-13: 9781330141014

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Excerpt from The Principles of Economic Geology Maps, photographs, and sets of rocks and ores from the larger districts are helpful, especially if these are before the student during the discussion. Even with such assistance probably better results may be obtained by omitting discussions of some districts treated herein. Some readers doubtless will disagree with certain features of the classification of ore deposits (Fig. 6), also with the weights I have set down for certain processes in the formation of various ores and illustrated in Figs. 40 and 74. These weights will be changed as our knowledge of ore deposits increases. I have introduced these figures because I believe that they will help to give the student a perspective. I acknowledge my indebtedness to Professors F. F. Grout, T. T. Quirke, and T. M. Broderick of the Department of Geology and Mineralogy of the University of Minnesota, who have critically read certain sections of this volume, and to Dr. E. C. Harder of the United States Geological Survey, who has read several sections, among them the chapters treating deposits of iron and manganese. Many of the drawings have been made by Mr. A. I. Levorsen and Mr. G. S. Nishihara. I have endeavored suitably to acknowledge sources of information by footnote references. 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.

Economic Geology

Economic Geology PDF

Author: Walter L. Pohl

Publisher: John Wiley & Sons

Published: 2011-03-03

Total Pages: 725

ISBN-13: 144439486X

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Humanity’s ever-increasing hunger for mineral raw materials, caused by a growing global population and ever increasing standards of living, has resulted in economic geology becoming a subject of urgent importance. This book provides a broad panorama of mineral deposits, covering their origin and geological characteristics, the principles of the search for ores and minerals, and the investigation of newly found deposits. Practical and environmental issues that arise during the life cycle of a mine and after its closure are addressed, with an emphasis on sustainable and "green" mining. The central scientific theme of the book is to place the extraordinary variability of mineral deposits in the frame of fundamental geological processes. The book is written for earth science students and practicing geologists worldwide. Professionals in administration, resource development, mining, mine reclamation, metallurgy, and mineral economics will also find the text valuable. Economic Geology is a fully revised translation of the the fifth edition of the German language text Mineralische und Energie-Rohstoffe. Additional resources for this book can be found at: www.wiley.com/go/pohl/geology. The author's website can be found at: http://www.walter-pohl.com.

Economic Geology

Economic Geology PDF

Author: S. G. Williams

Publisher: Forgotten Books

Published: 2017-09-16

Total Pages: 120

ISBN-13: 9781528363235

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Excerpt from Economic Geology: Abstract of Lectures Structure of sheets as (thin or thick - economic import; massive or laminated - economic import. 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.

The Principles of Economic Geology

The Principles of Economic Geology PDF

Author: William Harvey Emmons

Publisher: Arkose Press

Published: 2015-10-24

Total Pages: 636

ISBN-13: 9781345286502

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

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