Unnamed Occurrence (ARDF - MF053; west of Rendu Inlet), Hoonah-Angoon Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - MF053; west of Rendu Inlet)	- not defined -
Hoonah-Angoon Census Area	Census Area
Alaska	State
USA	Country

Isolated occurrence of molybdenum and copper minerals in Glacier Bay National Park and Preserve.
Location: The occurrence is at about 2500 feet elevation near or on the ridge between Rendu Inlet and Tarr Inlet about 4.2 miles southeast of Mt. Abdallah. Precision of location is poor; it is probably accurate within 0.5 mile. The occurrence is number 60 of MacKevett and others (1971) and number 42 of Kimball and others (1978).
Geology: The area is mainly underlain by foliated granitic rock of Cretaceous age, subordinate marble of Paleozoic age and possibly argillic metasedimentary rocks of Devonian and Silurian age (Brew and others, 1978, pl. IA). Molybdenite, chalcopyrite, pyrite and pyrrhotite occur in quartz veins, less than 3 inches thick, at a spacing of several feet. Veins also occur in quartz-rich pegmatitic dikes in a 25-foot thick zone in granitic rocks. The veins and dikes have variable strikes, but most strike northward and dip to the east ( MacKevett and others, 1971, p. 79; also table 9). No analyses were reported by either MacKevett and others or by Kimball and others, 1978).
Workings: Surface exposure, no workings. No analyses reported.
Age: Probably Cretaceous.

Commodities (Major) - Mo; (Minor) - Cu
Development Status: No
Deposit Model: Copper-molybdenum stockwork mineralization. Porphyry Cu and porphyry Mo (Cox a

Other Databases

Link to USGS - Alaska:	MF053

Other Regions, Features and Areas containing this locality

References