Unnamed Occurrence (ARDF - MM076; east of East Fork of Glen Creek), Kantishna Mining District, Denali Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - MM076; east of East Fork of Glen Creek)	- not defined -
Kantishna Mining District	Mining District
Denali Borough	Borough
Alaska	State
USA	Country

The occurrence is in Denali National Park and Preserve.
Location: This occurrence is at an elevation of about 3300 feet above the East Fork of Glen Creek. It is in the SW1/4 SW1/4 SE1/4 section 31, T. 15 S., R. 16 W, Fairbanks Meridian. The location is approximate. It corresponds to number 82 of Thornsberry, McKee, and Salisbury (1984).
Geology: The country rocks in the area of this occurrence include chloritic phyllite, metafelsite, and marble of the lower Paleozoic Spruce Creek sequence. Rock units and schistosity strike ENE and dip south, off the crest of the Kantishna antiform (MM091) (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The occurrence consists of semimassive sulfides in cobbles and small boulders in scree. The sulfides occur in tan, vitreous quartzite that possibly is metachert. The sulfides form parallel bands of pyrite, sphalerite, galena, and minor chalcopyrite. The scree fragments are up to 0.5 foot across and contain as much as 20 percent sulfide. Samples assayed up to 0.47 ounce of silver per ton, 1.2 percent zinc, 0.38 percent lead, 0.05 percent copper, and 1.25 percent arsenic. Gold was not determined (Thornsberry, McKee, and Salisbury, 1984, v. 2, occurrence 82).

Commodities (Major) - Ag, Zn; (Minor) - As, Cu, Pb
Development Status: None

Other Databases

Link to USGS - Alaska:	MM076

Other Regions, Features and Areas containing this locality

References