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The geology and ore deposits of Goldfield, Nevada

Author: Frederick Leslie Ransome; William H Emmons; G H Garrey
Publisher: Washington : Govt. Print. Off., 1909.
Series: U.S. Geological Survey professional paper, 66.
Edition/Format:   Print book : National government publication : EnglishView all editions and formats

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Additional Physical Format: Online version:
Ransome, Frederick Leslie, 1868-1935.
Geology and ore deposits of Goldfield, Nevada.
Washington : Govt. Print. Off., 1909
Material Type: Government publication, National government publication
Document Type: Book
All Authors / Contributors: Frederick Leslie Ransome; William H Emmons; G H Garrey
OCLC Number: 5804993
Description: 258 pages : illustrations, maps ; 29 cm.
Contents: Chapter I. --
Introduction --
Field work and acknowledgments --
Situation of the district --
Topography --
History of mining --
Production --
Literature --
Geographic names --
Chapter II. --
Preliminary outline of the geology and ore deposits --
Chapter III. --
Description of the pre-Tertiary rocks --
Cambrian shale --
Alaskite and granite --
Chapter IV. --
Description of the prelacustrine Tertiary igneous rocks --
Introduction --
Vindicator rhyolite --
Latite --
Kendall tuff --
Sandstorm rhyolite --
Morena rhyolite --
Milltown andesite --
Dacite --
Dacite vitrophyre --
Chispa andesite --
Andesite dikes --
Meda rhyolite --
Andesite breccia --
Chapter V. --
Rocks of the lake epoch --
Introduction --
Siebert formation --
Mira basalt --
Espina breccia --
Chapter VI. --
Postlacustrine Tertiary rocks --
Introductory statement --
Pozo formation --
Spearhead rhyolite --
Rabbit Spring formation --
Malpais basalt --
Chapter VII. --
Quaternary deposits --
Chapter VIII. --
Geologic structure --
Chapter IX. --
Geologic history and correlation --
Introduction --
Local geologic history --
Correlation of the Goldfield rocks with those of the surrounding region --
Tertiary chronology of the western part of the Great Basin --
The eruptive sequence --
Tertiary climate --
Chapter X. --
Mineralogy of the district --
Introduction --
Notes on the more important minerals associated with the ore deposits --
Chapter XI. --
The mines; a general account of their distribution, development, and operation, including ore treatment --
Distribution and underground development --
Mining costs --
Power --
Water supply --
Treatment of the ores --
Chapter XII. --
The ledges --
Definition --
Distribution --
Trend or strike --
Dip --
Shape --
Material and minor structures --
Chapter XIII. --
The pay shoots and ores --
Distribution --
Relation to ledges --
Shape --
Relation to fissuring --
Effects of faulting --
Influence of country rock --
Mineralogical and chemical character of the sulphide ores --
Paragenesis --
Mineralogical character of the oxidized ores --
Value of the ores --
Areal variations in the ores --
Observed changes in depth --
Original depth of the ores now visible --
Age of the deposits --
Chapter XIV. --
Metasomatic processes --
Types of alteration --
Comparison of fresh and altered dacite --
Changes in other rocks --
The ore-depositing solutions --
Chapter XV. --
Underground water and depth of oxidation --
Chapter XVI. --
Genesis of the deposits --
Statement of the problem --
The direct volcanic hypothesis --
Hypothesis of derivation of the sulphuric acid from the oxidation of pyrite --
Hypothesis of simultaneous sofatarism and oxidation --
Stages of deposition --
Summary of genesis --
Ultimate source of the ore-bearing solutions --
Present absence of volcanic activity --
Goldfield type of deposit --
Chapter XVII. --
Practical conclusions --
Chapter XVIII. --
Detailed descriptions of the mines of the Goldfield Consolidated Mines Company --
Introduction --
Red Top mine --
Mohawk mine --
Combination mine --
January mine --
Jumbo mine --
Mines and prospects operated by lessees --
Chapter XIX. --
Detailed descriptions of the mines of the Florence-Goldfield Mining Company --
Introduction --
Florence mine --
Mines operated by lessees --
Chapter XX. --
Detailed descriptions of the lesser mines and prospects of the Goldfield group --
Sanstorm mine --
Kendall mine --
Conqueror mine --
Adams mine --
Kewanas mine --
Goldfield Merger Company's mines --
Jumbo-Extension Mining Company's Gold Wedge claim --
Combination Fraction mines --
Atlanta group --
Gold Bar and Victor mines --
Blue Bull mine --
Simmerone mine --
Lone Star group --
Commonwealth mine --
Portland mine --
Other prospects --
Chapter XXI. --
Detailed descriptions of mines of the Diamondfield group --
Diamondfield Black Butte Consolidated mine --
Goldfield-Belmont mine --
Daisy mine --
Jumbo Extension (Gold Coin) mine --
Triangle mine --
Great Bend mine --
Series Title: U.S. Geological Survey professional paper, 66.
Responsibility: by Frederick Leslie Ransome, assisted in the field by W.H. Emmons and G.H. Garrey.


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