Unnamed Prospect (ARDF - NM187; west side of Twin Mountain Creek), Nome Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - NM187; west side of Twin Mountain Creek) | - not defined - |
| Nome Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 40' 16'' North , 165° 30' 0'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 19.4km |
Mindat Locality ID:
202340
Long-form identifier:
mindat:1:2:202340:6
GUID (UUID V4):
f29441d2-3c0c-4114-b35d-e604090115e2
Location: This prospect is at an elevation of about 1,000 feet on the west slope of Twin Mountains Creek valley, due west of the central part of Twin Mountain Creek. The prospect is in the NW1/4NW 1/4 section 33, T. 9 S., R. 34 W., Kateel River Meridian. The vein at this prospect extends westward into the Nome C-2 quadrangle. The location is accurate within about a half mile.
Geology: This prospect is on a simple quartz vein, as much as 3 feet thick and 600 feet long, that strikes northwest and dips steeply. It cuts across the schistosity of the host micaceous calc-schist. The vein contains as much as several percent of stibnite and galena. It is within a major geochemical soil anomaly characterized by gold, arsenic, and lead, that extends from the Rodine prospect (NM165) to Bangor Creek north of the Twin Mountain prospect (NM186).
Workings: The vein can be traced in outcrop or by float for a distance of about 600 feet.
Age: Mid-Cretaceous or younger; vein crosscuts rocks regionally metamorphosed in the mid-Cretaceous.
Commodities (Major) - Sb; (Minor) - Ag, Au, Pb
Development Status: None
Deposit Model: Simple Sb deposit (Cox and Singer, 1986; model 27d).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Stibnite Formula: Sb2S3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Stibnite | Sb2S3 |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | NM187 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
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