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Time required in developing selected Arizona copper mines.

Authors
Burgin-LB
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 8702, 1974 Jan; :1-144
NIOSHTIC No.
10007863
Abstract
This study by the Bureau of Mines documents the leadtime required for preliminary and detailed exploration, development of the mine, and construction of beneficiation and support facilities for selected copper deposits in Arizona. The time for major exploration ranged from 1 to 15 years, time for open pit development (or construction) was 1 to 4 years, and time for underground development was 4 to 8 years; one underground mine presently being developed may require 12 years to achieve production. Construction of the beneficiation plants required 8 months to just over 2 years. The data are supported by historical facts for each deposit during the leadtime stages from location of claims through exploration, construction, expansion, and leaching. The sequence of development and factors contributing to differences in the time spans are discussed. Histories are detailed for the Miami, Castle Dome, Copper Cities, San Manuel-Kalamazoo, and Twin Buttes properties; briefly summarized are the Pinto Valley, Miami East, Esperanza- Sierrita, Pima, and Mineral Park properties. Each mining operation had its own pattern of development, and together they present a source of planning information for the development of other properties.
Keywords
Mining-industry; Metal-mining; Surface-mining; Underground-mining
Publication Date
19760101
Document Type
IH; Information Circular
Fiscal Year
1976
NTIS Accession No.
PB-252494
NTIS Price
A08
Identifying No.
IC-8702
NIOSH Division
IFOC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 8702
State
AZ; CO
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