[PDF] The Enrichment Of Ore Deposits Classic Reprint eBook

Author : William Harvey Emmons
Publisher : Forgotten Books
Page : 548 pages
File Size : 23,78 MB
Release : 2017-10-11
Category : Science
ISBN : 9780265165515

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Excerpt from The Enrichment of Ore Deposits The problems of superficial alteration and enrichment are not simple. Not only do the several metals segregate in different ways, but each metal may behave differently in different mineral associa tions. Every district and every deposit should be studied separately in the light of all available chemical and geologic data. There are, however, certain laws Of segregation that almost invariably are clearly indicated, and as data have accumulated many puzzling ap parent exceptions to these laws have disappeared. This paper is an amplification of, an earlier Survey bulletin on the enrichment of sulphide ores (bulletin It is a discussion of representative deposits, especially Of the paragenesis of their ores and of the principles that underlie the processes of enrichment. I hope it may suggest to those engaged in geologic work and in mining some lines Of approach to the solution of the complex problems that are encountered in the field. I realize fully that there may be serious omissions and possibly errors in the discussion of the complex problems here presented. I shall esteem it a favor if anyone whose statements I may have mis quoted or misinterpreted will set me right, and if those who have had superior opportunities for study Of certain districts will correct any wrong impressions that I may have given. 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 : John Arthur Phillips
Publisher : Forgotten Books
Page : 974 pages
File Size : 38,2 MB
Release : 2017-10-28
Category : Science
ISBN : 9781528525152

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Excerpt from A Treatise on Ore Deposits During the preparation of a portion of the work I have had the assistance of Mr. B. H. Brough, Associate of the Royal School of Mines, and formerly student at the Mining School of Clausthal. For a period extending over several months, Mr. Brough was occupied in collecting statistical and other information from various foreign sources, and I am further indebted to him for numerous useful suggestions with regard to the arrangement of the matter, and for the careful attention which he has bestowed upon the work while passing through the press. The greatest care has been taken to insure accuracy throughout the work, and the author hopes that but few. Mistakes Will be found in it; although, in collecting such a large number of facts from so many different sources he cannot expect to have entirely escaped falling into error. 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 : James Furman Kemp
Publisher : Forgotten Books
Page : 324 pages
File Size : 34,97 MB
Release : 2017-09-16
Category : Science
ISBN : 9781528565530

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Excerpt from The Ore Deposits of the United States Should errors be noted by any reader, the author will be very appreciative of the kindness if his attention is called to them. 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 : Roger C. Wells
Publisher : Forgotten Books
Page : 84 pages
File Size : 45,76 MB
Release : 2016-11-19
Category : Science
ISBN : 9781334335211

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Excerpt from Electric Activity in Ore Deposits A most significant fact for the elucidation of these phenomena is that any unattackable electrode, such as a piece of smooth platinum, shows somewhat similar behavior in the various solutions. The table below gives a few single potential measurements which illustrate this point. The Solutions were approximately normal and the Sign is that assumed by the electrode with reference to the normal calomel electrode as the measurements being made soon after the specimens were placed in the Solutions. Of course neither equi librium nor constancy was wholly Obtained under these circumstances in the time allowed. 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 : James Furman Kemp
Publisher : Forgotten Books
Page : 562 pages
File Size : 39,58 MB
Release : 2018-02-19
Category : Science
ISBN : 9780656949021

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Excerpt from The Ore Deposits of the United States and Canada Should errors be noted by any reader, the writer will be very appreciative of the kindness if his attention is called to them. 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 : Franz Posepny
Publisher : Forgotten Books
Page : 832 pages
File Size : 28,31 MB
Release : 2017-10-28
Category :
ISBN : 9781528022804

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Excerpt from The Genesis of Ore-Deposits: Reprinted, Together With the Discussion Thereof, From Volumes XXIII and XXIV, of the Transactions of the American Institute of Mining Engineers My translation of the paper itself has received the author's approval; but the translation of his later communication, which appears in this volume in the course of the discussion, goes to press without final revision on his part. I can only infer, from his omission to return with corrections the copy sent him sev eral months ago, that he has not found serious errors in it. 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 : Richard Beck
Publisher : Forgotten Books
Page : 360 pages
File Size : 39,5 MB
Release : 2017-09-16
Category : Science
ISBN : 9781528269131

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Excerpt from The Nature of Ore Deposits, Vol. 1 of 2 I am under deep obligation to Mr. Robert Stein, of the Bureau of Statis; tics, for his help in the translation, and to Mr. S. F. Emmons for his eriti cism and revision of a number of descriptions. The prefaces are given in the original German, that the charm and spirit of Professor Beck's text may be retained. 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 : Rossiter Worthington Raymond
Publisher : Franklin Classics Trade Press
Page : 830 pages
File Size : 11,35 MB
Release : 2018-10-29
Category :
ISBN : 9780344461934

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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 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. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author : William Harvey Emmons
Publisher : Palala Press
Page : 550 pages
File Size : 23,54 MB
Release : 2015-11-19
Category :
ISBN : 9781346930084

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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.