Otter Creek Prospect, Koyuk Mining District, Nome Census Area, Alaska, USAi

Regional Level Types
Otter Creek Prospect	Prospect
Koyuk Mining District	Mining District
Nome Census Area	Census Area
Alaska	State
USA	Country

Location: This prospect is in the headwaters of Otter Creek, a west tributary to Tubutulik River on the south side of Death Valley. The mouth of Otter Creek is 4 miles south of Camp Haven. It is about 4.6 miles upstream from the mouthof the creek or 3,000 feet upstream of the dozer cuts (BN087) on the creek. A 20 foot-deep shaft near two decaying log cabins marks the locality (Herreid, 1965). This is locality 17 of Cobb (1972; MF 417; 1975; OFR 75-429).
Geology: A caved shaft, estimated to be 20 feet deep, is located next to two decaying log cabins at this prospect. The shaft is in quartz-mica schist which contains less than 1 % sulfides along tiny quartz veins (Herreid, 1965). Grab samples of quartz-rich and quartz-poor schist from the shaft dump contained 0.03 ounces/ton Au (trace Ag) and 0.01 ounces/ton Au (0.27 ounces/ton Ag) respectively. Bedrock in the area is Lower Paleozoic metasedimentary rocks (Herreid, 1965; Till and others, 1986).
Workings: An old caved shaft, estimated to originally be 20 feet deep, is present here.
Age: Cretaceous ?; Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age.
Alteration: Quartz veining in schist.

Commodities (Major) - Ag, Au
Development Status: No
Deposit Model: Low sulfide Au-quartz veins ? (Cox and Singer, 1986; model 36a ?)

Other Databases

Link to USGS - Alaska:	BN088

Other Regions, Features and Areas containing this locality

References