Old Glory Occurrence, Fairhaven Mining District, Northwest Arctic Borough, Alaska, USAi

Regional Level Types
Old Glory Occurrence	Occurrence
Fairhaven Mining District	Mining District
Northwest Arctic Borough	Borough
Alaska	State
USA	Country

Location: This occurrence is on the east side of Old Glory Creek valley, at an elevation of 400 feet. It is about 4,000 feet upstream of the mouth of Old Glory Creek. Old Glory Creek is a northeast-flowing tributary to Pinnell River. The mouth Old Glory Creek is about 1.5 miles upstream of the confluence of Pinnell and Inmachuk Rivers.
Geology: A ferruginous gossan in dolomitic marble is developed over a 110 by 500 foot area. The gossan is developed along a marble layer that now contains dolomite, quartz, pyrite (?), sericite, chlorite and minor fuchsite. A composite grab sample of ferruginuous marble collected over a distance of 115 feet contained 0.04 ounces/ton Au, 0.24 ounces/ton Ag, and 0.05 % Zn (Herried, 1966, Table 1). Most of the bedrock in the area is a metasedimentary schist and marble sequence of Lower Paleozoic age (Till and others, 1986).
Workings: Small, hand dug prospecting pits may be present.
Age: Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age. Some lode gold deposits on southern Seward Peninsula are mid-Cretaceous in age (see Midnight Mountain, BN047).
Alteration: The occurrence is oxidized and the dolomitic marble is replaced by sulfides and phyllosilicates.

Commodities (Major) - Au; (Minor) - Ag, Zn
Development Status: No
Deposit Model: Replacement in marble

Other Databases

Link to USGS - Alaska:	BN065

Other Regions, Features and Areas containing this locality

References