21-6-064: latite - Bristol Bay District - Sill Mine

Details

Specimen Number21-6-064Comments Crowe research collection, C. Schrader MS thesis.Interesting contact between weakly altered light gray porphyritic latite and somewhat darker gray latite unit that appears to have an intrusive breccia appearance. Both crosscut by thin quartz selvages.In Teaching CollectionNoMineral(s)quartzplagioclasek-sparRock NamelatiteDistrictBristol BayMineSillExternal LinkMindatGeo-LocationDDH 9, 185'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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21-6-064: latite - Bristol Bay District - Sill Mine

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21-6-064: latite - Bristol Bay District - Sill Mine