21-4-039: altered latite - Bristol Bay District - Sill Mine

Details

Specimen Number21-4-039Comments Crowe research collection, C. Schrader MS thesis.Altered latite with two large 2-3 cm quartz veins, both of which display what appears to be quartz after calcite textures. Sulfide lacking. Veins have significant open space. Sample also has numerous thin anastamosing quartz selvages.In Teaching CollectionNoMineral(s)quartzplagioclasek-sparRock Namealtered latiteDistrictBristol BayMineSillExternal LinkMindatGeo-LocationDDH 4, 35'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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21-4-039: altered latite - Bristol Bay District - Sill Mine

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21-4-039: altered latite - Bristol Bay District - Sill Mine