Geology and Gold Deposits of the Cripple Creek District, Colorado PDF Download

Author: Waldemar Lindgren
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 620

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Author: Albert Herbert Koschmann
Publisher:
ISBN:
Category : Gold ores
Languages : en
Pages : 60

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Author: Mark W. Davis
Publisher:
ISBN:
Category : Colorado
Languages : en
Pages : 120

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Author: Fred Hills
Publisher: Legare Street Press
ISBN: 9781016008310
Category :
Languages : en
Pages : 0

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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. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author: Whitman Cross
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 258

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Author: Waldemar Lindgren
Publisher: Forgotten Books
ISBN: 9780656231287
Category : Science
Languages : en
Pages : 452

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Excerpt from Report of Progress in the Geological Resurvey of the Cripple Creek District, Colorado The Cripple Creek gold deposits were discovered in 1891. Shortly afterwards, in 1894, an examination of the new district was undertaken by the United States Geological Survey, Mr. Whitman Cross having charge of geology and petrography and Mr. R. A. F. Penrose, ir., undertaking the examination of the mines. Their report, accompanied by a geological map, was published in the Sixteenth Annual Report of the Geological Survey, Part 11, pages 1 - 207, and has for the last ten years served as a useful and accurate geological guide to mining operations. With the astonishingly rapid development of the Cripple Creek mines the opportunities for geological study multiplied, revealing great complexity of vein phenomena and stimulating a desire for fur ther investigation, particularly with a view of obtaining some evidence as to the persistence of the veins in depth. This desire found expres sion in a request by citizens of Colorado for a reexamination of the district by the United States Geological Survey and in an offer of cooperation, whereby the cost would be equally divided between the State of Colorado and the National Survey. The necessary amount having been subscribed in Cripple Creek, Colorado Springs, and Den ver, the State contribution was put in the hands of Mr. John Welling ton Finch, State geologist of Colorado, and by him disbursed. The cordial thanks of the geologists in charge of the work are due to Mr. Finch for his hearty and efficient cooperation. 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: Kevin Singel
Publisher: Createspace Independent Publishing Platform
ISBN: 9781719553469
Category :
Languages : en
Pages : 466

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Travel guide book inspired by the gold prospecting origin of Colorado. Includes touring information on all the major towns founded as gold mining camps as well as summaries of each town's origin story. Includes reviews and recommendations on historic districts to visit, mines to tour, driving tours of ghost towns and places to gold pan. Includes information on 16 historic districts, 31 museums, 18 mines, 186 gold panning sites across the state of Colorado. Thoroughly researched to confirm public access to the panning sites (no private property or areas subject to mining claim has been included - unlike other books.)Written by a long-time Colorado resident and gold prospector. Based on years of research and field work.Get your share of the gold by prospecting for it in historic, urban, and remote locations across the gold districts of Colorado.

Author:
Publisher:
ISBN:
Category : Mine surveying
Languages : en
Pages : 38

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Author: Peter Filzmoser
Publisher: Springer
ISBN: 3319964224
Category : Mathematics
Languages : en
Pages : 288

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This book presents the statistical analysis of compositional data using the log-ratio approach. It includes a wide range of classical and robust statistical methods adapted for compositional data analysis, such as supervised and unsupervised methods like PCA, correlation analysis, classification and regression. In addition, it considers special data structures like high-dimensional compositions and compositional tables. The methodology introduced is also frequently compared to methods which ignore the specific nature of compositional data. It focuses on practical aspects of compositional data analysis rather than on detailed theoretical derivations, thus issues like graphical visualization and preprocessing (treatment of missing values, zeros, outliers and similar artifacts) form an important part of the book. Since it is primarily intended for researchers and students from applied fields like geochemistry, chemometrics, biology and natural sciences, economics, and social sciences, all the proposed methods are accompanied by worked-out examples in R using the package robCompositions.

Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 552

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