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Block-caving copper mining methods and costs at the Miami mine, Miami Copper Company, Gila County, Ariz.

Authors
Hardwick-WR
Source
Tucson, AZ: U.S. Department of the Interior, Bureau of Mines, IC 8271, 1965 Jan; :1-96
NIOSHTIC No.
20036146
Abstract
This Information Circular describes the development of block-caving methods and practices by the Miami Copper Co. at the Miami mine in Gila County, Arizona. It is one of a series published by the Bureau of Mines on mining methods, practices, and costs in various mining districts of the United States. This report gives a history of the district and outlines early prospecting and exploration including methods of sampling and estimation of ore tonnage and value at the Miami mine. Early mining methods are described, particularly those that influenced developments in the caving method. Mine exploration, development, and operating methods for block caving are described with particular attention to those factors, physical, economic, engineering, and managerial that have improved efficiency in the mining operations over a long productive period. Extraction, ventilation, wage system, safety, water supply, power plant, and shop facilities are discussed. The last section gives a brief summary of such costs as are available for publication.
Keywords
Mining-industry; Metals; Metal-mining; Underground-mining; Copper-compounds
CAS No.
7440-50-8
Publication Date
19650101
Document Type
Information Circular
Fiscal Year
1965
NTIS Accession No.
PB-169685
NTIS Price
A07
Identifying No.
IC-8271
NIOSH Division
TMRC
Source Name
Tucson, AZ: U.S. Department of the Interior, Bureau of Mines, IC 8271
State
AZ
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