Mining Methods and Costs at the Central-Eureka Mine, Amador County, Calif PDF Download
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Author: James Spiers
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 26
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Book Description
This papaer describing the mining practice at the Central-Eureka mine is one of a series of similar papers being prepared by the United States Bureau of Mines on mining practices, methods, and costs in the various mining districts of the United States. The mining practices described in the paper are illustrative of the methdos employed in the exploitation of comparatively low-grade gold ores under the extremely heavy and swelling ground conditions which occur in the Mother Lode belt of California
Author: James Spiers
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 26
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Book Description
This papaer describing the mining practice at the Central-Eureka mine is one of a series of similar papers being prepared by the United States Bureau of Mines on mining practices, methods, and costs in the various mining districts of the United States. The mining practices described in the paper are illustrative of the methdos employed in the exploitation of comparatively low-grade gold ores under the extremely heavy and swelling ground conditions which occur in the Mother Lode belt of California
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: James Spiers
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 0
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Book Description
Author: William O. Vanderburg
Publisher:
ISBN:
Category : Mining engineering
Languages : en
Pages : 30
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Book Description
Author: William O. Vanderburg
Publisher:
ISBN:
Category : Mining engineering
Languages : en
Pages : 14
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 178
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 532
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 840
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral engineering
Languages : en
Pages : 838
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Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Digital images
Languages : en
Pages : 842
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