4-8-020: skarn - Pima District - Pima Mine

Details

Specimen Number4-8-020Alternate NumberP-10CommentsMagnetite-serpentine skarn, part of hanging wall clastics of Triassic (?) age. Material is from bottom of pit, is structurally controlled within the skarn units of the Triassic and Paleozoic sediments. Magnetite distribution controlled by EW structures. Alteration minerals include magnetite, serpentine, chlorite, along with minor silicification and veinlets/disseminations of pyrite, pyrrhotite (an unusual phase for the porphyry suite), and chalcopyrite. Can contain up to 10-20% magnetite. This was the material that led to the original discovery of the deposit.In Teaching CollectionNoMineral(s)magnetitepyritequartzserpentineRock NameskarnDistrictPimaMinePimaExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypePorphyry CopperGeo-Coords^[1]Reference MaterialACL-109: Thurmond, R.E., and Storms, W.R., 1958, Discovery and Development of the Pima Copper Deposit, Pima Mining Co., Pima County, Arizona, Bur. Mines Inform. Circ. 7822, 19 p.

ACL-113: Thurmond, R.E., Olk, J.F., Komadina, G.A., Journeay, J.A., Spaulding, E.D., and Hernlund, R.W., 1958, PIMA: a three-part story, Min. Eng., p. 453-462.

ACL-121: Langlois, J.D., 1976, Geology of the Cyprus Pima mine, Pima County, Arizona, in Jenney, J.P., and Hauck, H.R., eds., AZ Geol. Soc. Digest Volume XI, Proceedings of the Porphyry Copper Symposium, Tucson, AZ, March 18-20, p. 103-114.

ACL-153: Cooper, J.R., 1960, Some Geologic Features of the Pima Mining District, Pima County, Arizona; U.S. Geol. Surv. Bull. 1112-C, Washington, D.C., 40 p.

OCR Text Transcription Edit Edit +-Close

Save Cancel + Row + Column

4-8-020: skarn - Pima District - Pima Mine

Start typing here to find a location	Latitude	Longitude	Zoom	Actions

loading google map....

Save Cancel

Menu

4-8-020: skarn - Pima District - Pima Mine