The Economic Aspect of Geology (Classic Reprint)

The Economic Aspect of Geology (Classic Reprint) PDF

Author: Charles Kenneth Leith

Publisher: Forgotten Books

Published: 2017-10-11

Total Pages: 484

ISBN-13: 9780266097952

DOWNLOAD EBOOK →

Excerpt from The Economic Aspect of Geology In adapting ourselves to physical environment it has been necessary to learn something about the earth. Mainly Within the last century has this knowledge been organized into the science of geology, and only Within the last few decades have the com plex and increasing demands of modern civilization required the applications of geology to practical uses, resulting in the develop ment of the science generally known as economic geology. This science is not Sharply marked off from the science Of geology proper; almost any phase of geology may at some time or some place take on its economic aspect. 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: Heinrich Ries

Publisher: Forgotten Books

Published: 2017-09-16

Total Pages: 884

ISBN-13: 9781528261340

DOWNLOAD EBOOK →

Excerpt from Economic Geology: With Special Reference to the United States The continued advance in our knowledge of Economic Geology has necessitated considerable revision for the new edition. In addition, the author has, at the request of a number of teachers, included a description of the more important Canadian mineral deposits, as well as brief references to some of the well-known ones of other countries. While these additions to the text and illustrations have increased the size of the book somewhat, the number of pages is not to be taken as a gauge of the actual increase in size, for the reason that over one hundred full-page illustrations, formerly bound as inserts, are paged in with the text in the present edition. The latest available statistics have been included, and unless otherwise stated are taken from the United States Geological Survey, and Canadian Department of Mines reports. In a few cases, investigations to which reference might have been made in the text have appeared too late to include them, but it has still been possible to insert them in the reference list, and this has been done. 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

DOWNLOAD EBOOK →

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.

Economic Geology

Economic Geology PDF

Author: S. G. Williams

Publisher: Forgotten Books

Published: 2017-09-16

Total Pages: 120

ISBN-13: 9781528363235

DOWNLOAD EBOOK →

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 (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

DOWNLOAD EBOOK →

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.

Geology and Economic Deposits of a Portion of Eastern Montana (Classic Reprint)

Geology and Economic Deposits of a Portion of Eastern Montana (Classic Reprint) PDF

Author: Jesse Perry Rowe

Publisher:

Published: 2015-07-01

Total Pages: 70

ISBN-13: 9781330537633

DOWNLOAD EBOOK →

Excerpt from Geology and Economic Deposits of a Portion of Eastern Montana 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.

Epitome of the Economic Geology of New Mexico (Classic Reprint)

Epitome of the Economic Geology of New Mexico (Classic Reprint) PDF

Author: Fayette Alexander Jones

Publisher:

Published: 2015-07-02

Total Pages: 56

ISBN-13: 9781330473436

DOWNLOAD EBOOK →

Excerpt from Epitome of the Economic Geology of New Mexico In presenting this Epitome of the Economic Geology of New Mexico, it is to be hoped that what is herein offered may be conducive to a more intelligent understanding and appreciation of the dormant mineralogical resources of a commonwealth of which, comparatively speaking, but little is known. Historically, New Mexico is the oldest and most widely known of any section in the United States; commercially, its importance is yet but meagerly comprehended. Although New Mexico is the cradle of the mining industry in the Rocky Mountains and Pacific Slope regions, peculiar political conditions have materially retarded its development. The fact, however should not be overlooked that the initial impulse received in the development of the Great West was due to the discovery of gold in Santa Fe County at the base of the Ortiz Mountains, in the year 1828. This discovery was made twenty years before the great gold excitement at Coloma in California and thirty years before the find on Cherry Creek in Colorado. The discovery of placer gold in New Mexico marks the beginning of modern American methods that have so effectually revolutionized every phase in the art of mining and in the science of metallurgy. The evolution of the old wooden bowl, known as the "batea," used in these early diggings, is symbolized in the modern gold pan. Crude designs of the first "rockers" and sluice boxes for washing the auriferous gravels in trans-Mississippi fields, virtually had their inception in this primary gold camp, in Santa Fe County. Among the first stamp mills constructed in the United States may be mentioned the one at Dolores for milling the ores from the celebrated Ortiz mine in Santa Fe County; one at the gold camp of Pinos Altos in Grant County; and one at the Aztec mine at the head of Ute Creek on Baldy Mountain, in Colfax County. The first experiments in ore concentration in the West were conducted by J. Amberg, a German metallurgist at Pinos Altos, in the early sixties of the past century. It should also be noted that the first gold lode or vein discovered and worked west of the Mississippi was made in the year 1833, on the famous Sierra del Oro, constituting what is now known as the Ortiz mine. In the Los Cerrillos district, a few miles west of the Ortiz Mountains, exist what appear to be prehistoric workings on a metalliferous vein of lead and silver, known as Mina del Tierra. This antique working is of unusual interest with incline and nearly vertical shafts connecting and totalling, perhaps, over two hundred feet of work, including drifts and slopes. 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 (Classic Reprint)

Economic Geology (Classic Reprint) PDF

Author: Charles H. Richardson

Publisher: Forgotten Books

Published: 2017-09-12

Total Pages: 332

ISBN-13: 9781527949973

DOWNLOAD EBOOK →

Excerpt from Economic Geology These gangue minerals are of lower specific gravity than the ores and may often be mechanically separated from them. Again they are so barren of metallic minerals as to permit separation through the hand sorting of the ore. The gangue is then transported to the dump, while the material containing the valuable metal is carried to the mill for treatment. 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.