| 词条 | Planet, Arizona |
| 释义 |
MiningThe geology of the Planet area is ancient, estimated to be Precambrian, the bedrock being made up mostly of pinkish gneiss and absorbed limestone and amphibolite, which contained hematite-copper. Gold and the copper were discovered in La Paz County in the early 1860s.[1] The Planet area began producing ore around 1868, making it likely the first copper mine in Arizona.[4] Prospectors received trouble from Apaches in the area until 1874, when they were placed on reserves. Smelting and bullion production, assaying at about 5% copper, began in the 1880s. By 1884, the mine had sent more than 6,000 tons of high-quality copper to San Francisco. Transporting freight 28 miles to Planet cost $10 to $18 a ton. There was for a while limited access to Planet, a stage going between the town and Bouse (21.5 miles to the south) three times a week. With 31 lode claims, the mine was noted as a good example of the state's abundant natural resources.[2] In 1906, the mine was owned by J. Stanley Jones of Denver, Colorado.[3] The New Planet Mining Company was incorporated in Delaware on July 13, 1909. Its predecessor, the Planet Copper Mining Co., had taken over the mine in 1902.[4] By 1916, the Planet Copper Mine was producing 3,929,000 lbs. of copper a year; it ranked as the 25th most productive copper mine in the United States.[5] By 1920, the company's stock assets amounted to $4 million at $5 a share. That year, the superintendent of the mine was Claude Ferguson.[6] See also
References1. ^1 USGS GNIS Feature Detail Report: Planet {{La Paz County, Arizona}}2. ^1 Paige, Sidney. Mining Resources of the Llano-Burnet Region, Texas. Government Printing Office: Washington, DC, 1911 3. ^Mining Reporter, Volume LIII. The Mining Reporter Publishing Company: Denver, Colorado, 1906. 4. ^1 Weed, Walter Harvey, E.M. The Mines Handbook. New York City, 1920. 5. ^Finlay, James Ralph. The Cost of Mining. McGraw-Hill: New York, 1920, p. 185 6. ^Dunbar, Alexander R. The American Mining Manual. The Mining Manual Co.: Chicago, 1920, p. 84 1 : Populated places in La Paz County, Arizona |
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