21-7-006: altered latite - Bristol Bay District - Sill Mine

Details

Specimen Number21-7-006Comments Crowe research collection, C. Schrader MS thesis.Weathered porphyritic latite, sample has several large (3-4 cm) angular fragments, may be some sort of intrusive breccia?In Teaching CollectionNoMineral(s)quartzplagioclasek-sparRock Namealtered latiteDistrictBristol BayMineSillExternal LinkMindatGeo-LocationDDH 23, 49.5'Deposit TypeEpithermal Low SulfidationGeo-Coords^[1]Reference MaterialACL-156: Berg, H.C. and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska; U.S. Geol. Surv. Bull. 1246, Washington, D.C., 254 p.

Schrader, C.M., 2001, Geochronology and Geology of the Pebble Cu-Au-Mo Porphyry and the Sill Au-Ag Epithermal Deposits, Southwest Alaska; University of Georgia MS thesis, 109 p.

Tracy, B.J., 2001, Geology and Ore Fluid Geochemistry of the Pebble Cu-Au Porphyry Deposit, Southwest Alaska; University of Georgia MS thesis, 148 p.

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21-7-006: altered latite - Bristol Bay District - Sill Mine

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21-7-006: altered latite - Bristol Bay District - Sill Mine