Precious Metal Deposits of the Carlin Trend PDF Download
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 138
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 138
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Book Description
Author: Jeffrey W. Hedenquist
Publisher:
ISBN: 9781887483018
Category :
Languages : en
Pages : 0
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Book Description
Author: Robert W. Schafer
Publisher:
ISBN:
Category : Disseminated deposits
Languages : en
Pages : 784
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Book Description
Author: Joseph V. Tingley
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 108
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Book Description
Author:
Publisher:
ISBN: 9781629493121
Category : Geology, Economic
Languages : en
Pages : 845
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Book Description
Author: D. B. Hoover
Publisher: DIANE Publishing
ISBN: 1568063598
Category :
Languages : en
Pages : 136
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Book Description
Author: Richard H. Sillitoe
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 142
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Book Description
This report describes the exploration and discovery histories of 54 major base- and precious-metal deposits around the Pacific rim over the last 25 years (1970-95). The discoveries are considered to be representative and to include all those of world-class deposits. Each case history places the discovery in a historical context and summarizes the geological, geochemical and geophysical work undertaken prior to discovery, followed by that completed through to production. The time frames and organizational aspects of the exploration programmes are emphiasized along with any special "twists". Each case history is prefaced by the background geology, including tonnage and grade data, and concludes with a brief summary.
Author: David R. Lageson
Publisher: Geological Society of America
ISBN: 9780813700021
Category : Science
Languages : en
Pages : 462
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Book Description
Author:
Publisher:
ISBN:
Category : Gold ores
Languages : en
Pages : 198
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Book Description
Author: Maureen G. Johnson
Publisher: Forgotten Books
ISBN: 9780331313765
Category :
Languages : en
Pages : 146
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Book Description
Excerpt from Placer Gold Deposits of Nevada Following the discovery of placers at Gold Canyon, placer discoveries in Nevada were broadly in three periods: the 1860's to 1880's, when many small deposits throughout the State were discovered and sporadically worked and several large placers were discovered and extensively worked; the short period between 1906 and 1910, when very rich placers were dis covered at Lynn, Battle Mountain, Manhattan, and Round Mountain; the early 1930's, when economic conditions created by the depression caused a renewed interest in placer mining, and many individuals sought, and a few discovered, new placer areas throughout the State. The location of the placers described in this report is shown on plate 1. Very little factual information can be found about the early periods of placer mining in Nevada. For many placers, the only reports available are hearsay estimates of production and speculations about the extent of the placer ground based on remnants of placer pits, shafts, and other workings. Many of the placers said to have had a high production between 1860 and 1890 were worked by Chinese miners who came to Nevada dur ing the building of the railroads and stayed on to work at mining and other activities. The Chinese were reputed to be secretive with their earnings from the placers and did not ship the gold to the mint by Wells Fargo or other shippers. They worked the gravels very thoroughly in areas where American miners did not wish to expend great labor to win the gold. The placers in the Sierra and Spring Valley districts, Pershing County, were worked by Chinese miners; they have a very high estimated production before 1900 and a comparatively low known production since that time. 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.
