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Copper deposits of the western Upper Peninsula of Michigan OF THE WESTERN UPPER PENINSULA OF MICHIGAN Reported pre mining geologic resource regardless of economic feasibility to mine Billions of lbs of copper1
The Great Ancient Copper Mines of Michigan It is estimated that half a billion pounds Ref.1 of copper were mined in tens of thousands of pits on Isle Royale and the Keweenaw Peninsula of Michigan by ancient miners over a period of a thousand years.
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Dec 18, 2008 · A Marquette tour guide tells us about copper mining in the Upper Peninsula which dates back 7,000 years at the Porcupine Mountains and Keweenaw Peninsula.
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OF THE WESTERN UPPER PENINSULA OF MICHIGAN Reported pre mining geologic resource regardless of economic feasibility to mine Billions of lbs of copper1 Average Cu grade Mesoproterozoic Keweenaw Peninsula native copper district Previously mined native copper 14.4 1.84 Unmined native copper 5.0 1.2 Unmined small chalcocite 0.3 2.3 District ...
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Oct 19, 2019 · The Miners of Michigan Copper. It is estimated that half a billion pounds Ref.1 of copper were mined in tens of thousands of pits on Isle Royale and the Keweenaw Peninsula of Michigan by ancient miners over a period of a thousand years. Carbon dating of wood timbers in the pits has dated the mining to start about 2450 BC and end abruptly at ...
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Mining History: Mine Headframes and Structures of Michigan Michigan has four major metallic mining ranges, the Copper Country Mining District of Keweenaw, Houghton, Ontonagon counties and some explorations in Gogebic, the Marquette Iron Range of Marquette and Baraga counties, the Menominee Iron Range of Dickinson and Iron counties, and the Gogebic Iron Range of Gogebic county extending ...
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The mine is located at the east side of the Baraga Basin, which is a section of Paleoproterozoic sediment in Michigan. Along with copper and nickel, the mine also contains a smaller amount of cobalt, precious and platinum group metals pentlandite and chalcopyrite are the economically feasible minerals found at the deposit.
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Mar 25, 2014 · The Keweenaw Peninsula of Michigan has been nationally famous for over 100 years for its history of highly productive copper mining. The local basalt is criss crossed with many thick veins of native copper that made up the main ore of many of the mines.
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Within the state of Michigan, copper is found almost exclusively in the western portion of the Upper Peninsula, in an area known as the Copper Country.
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Caledonia Native Copper Mine Rock and Mineral Collecting near Ontonagon, Michigan for the rock collector or geologist. Collect samples of copper, silver, datolite, calcite, epodote, quartz, as well as a range of micro minerals. Our knowledgeable staff will help with techniques and identification of finds in your private ore pile.
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An underground copper mine consisting of two shafts and four adits located approx. 40 miles SW of Houghton, Michigan. The Caledoniapanyanized in 1863 after purchasing the Nebraska and Kansaspany properties. Operations continued until 1871, when Caledonia and the Flinsteel Copper Coompany merged together.
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Dec 18, 2018 · Objects made of Keweenaw copper have been found in archeological sites across the continent. 1771 Alexander Henry makes the first English attempt to mine copper on the Keweenaw Peninsula near the Ontonagon River.
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The mining industry has been essential for Marquettes economy since its founding in 1849. The Upper Peninsula was considered a useless piece of inhospitable land up until Douglas Houghton discovered copper in the Keweenaw Peninsula in 1841. Soon after, William Burt discovered iron ore in the Upper Peninsula in 1844.
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Sep 06, 2019 · Officials say a high grade nickel and copper mine in Michigans U.P. is expected to remain in operation more than a year longer than earlier expected SUBSCRIBE NOW $3 for 3 months.
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Eight million pounds of copper were removed from the five shafts that reached a depth of 1,400 feet with ten levels. The tour takes you down shaft No. 1 to the first level. You'll see pure veins of copper exposed in the walls of the mine. Model train, rock mineral and mining displays, antique engines, petting zoo and walking trails.
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Aug 11, 2018 · American History classes generally mention NOTHING about the ancient copper mines in Michigans Upper Peninsula, where an estimated 500,000,000 pounds of copper was mined from 5,000 to 1,200 B.C. Interestingly, the mines were briefly reactivated on a smaller scale, suddenly ending production around 1320 A.D., +/ 10 years.
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Ontonagon County, MI Copper mines,panies, mine owners and mine information. US Mining provides information on mines, operators, and minerals mined in Ontonagon County, MI
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Dec 31, 2016 · Most of Michigans copper is found in the western portion of the Upper Peninsula.
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