Unnamed Occurrence (ARDF - NM164; ridge between Butterfield and upper Bangor Creeks), Nome Mining District, Nome Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
64° 41' 24'' North , 165° 30' 50'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 21.6km |
Location: This occurrence is at an elevation of about 1,250 feet on the ridge crest between the headwaters of Bangor and Butterfield Creeks in the northwest Nome C-2 quadrangle. Mining claims were located on intensely deformed quartz-rich schist, probably before 1920. Claim locators used metamorphic quartz rods as much as 6 feet long and 6 inches in diameter as claim markers. The location is accurate within about 1,000 feet.
Geology: This occurrence is at or near the crest of an antiform where intensely deformed schist contains weakly mineralized quartz, including quartz rods (Kennecott Exploration Company, written communication, 1992). The quartz rods and linear elements in the schist plunge to the north-northwest. The area was apparently prospected in the early years of the Nome district, probably before 1920; quartz rods were used as claim posts. Quartz and schist from the site contain as much as 0.02 ounce of gold per ton and hundreds of parts per million arsenic. The occurrence is of interest because it may indicate pre-metamorphism gold mineralization or mineralization during a ductile stage of metamorphism. In either case, the mineralization is older than the widespread low-sulfide Au-quartz veins of the Nome district.
Workings: Claims staking and surface prospecting appears to have taken place here before 1920.
Age: Mineralization either predates regional metamorphism or took place during a ductile stage of deformation, possibly mid-Cretaceous.
Alteration: Pre-metamorphism quartz veining or replacement?
Commodities (Major) - Au; (Minor) - As
Development Status: None
Deposit Model: Metamorphosed low-sulfide Au-quartz veins?
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | NM164 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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