Latitude: 32°40'12"N
Longitude: 110°40'12"W
The Kalamazoo is a detached portion of the San Manuel orebody. Originally, there was a single orebody that was subsequently cut in half by a fault some 28-29 million years ago. The Kalamazoo was originally the top portion of the San Manuel orebody that was down-faulted several thousand feet. It is now the lower orebody that tops out at about 2,600 feet below surface. It is comprised essentially of sulfides, mainly chalcopyrite, with only a trace of oxidized minerals (Gary Alexander, former Geologist, San Manuel Mine - thanks Gary!)
References
Schwartz, G.M. (1947), Hydrothermal alteration in the 'porphyry copper' deposits, Economic Geology: 42, 319-352.
Creasey, S.C. (1959), Some phase relations in the hydrothermally altered rocks of porphyry copper deposits, Economic Geology: 54: 351-373.
Lowell, J.D. (1968), Geology of the Kalamazoo orebody, San Manuel district, Arizona, Economic Geology: 63: 645-654;
Welty, J.W. (1988) Strontium isotopic compositions of igneous rocks at the San Manuel-Kalamazoo porphyry copper deposit, Pinal County, Arizona: Tucson, University of Arizona, M.S. prepublication manuscript, 27 p.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 113, 215, 257, 302, 309, 341.
Singer, D.A., Berger, V.I., and Moring, B.C. (2005): Porphyry Copper Deposits of the World: Database, Map, and Grade and Tonnage Models. USGS Open-File Report 05-1060.
Mineral List
37 entries listed. 31 valid minerals.
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