St. Michaels Creek Mine, Nome Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| St. Michaels Creek Mine | Mine |
| Nome Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 32' 28'' North , 165° 8' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 13.1km |
Location: This alluvial gold placer deposit is on St. Michaels Creek, a south tributary to Osborn Creek (NM305). The confluence of Osborn and St. Michaels Creek is about 2 miles upstream of the mouth of Osborn Creek on Nome River. The map location is on placer mine workings in the lower part of the creek, 1,500 feet upstream of its mouth, in the NW1/4 section 18, T. 11 S., R. 32 W., Kateel River Meridian. St. Michaels Creek is included in locality 120 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
Geology: St. Michaels Creek has been extensively dredged for placer gold along its lower 3,000 feet. The mine workings are at surface elevations of about 50 to 75 feet. Specific information for St. Michaels Creek has not been reported, but the deposit may be similar in origin, tenor, and mining history to that on nearby Osborn Creek (NM305). St. Michaels Creek's low elevation and proximity to the lower Nome River valley suggest that Quaternary sea-level fluctuations probably influenced development of its placer deposits. Parts of St. Michaels Creek probably rework older coastal plain deposits. St. Michaels Creek barely cuts down to an elevation where Third Beach could have existed in a re-entrant to the northeast side of Army Peak. Bedrock sources of gold could also be present; bedrock exposed in the area is mainly calc-schist, mica-chlorite schist, and marble with some graphitic quartz schist (Hummel, 1962 [MF 247]).
Workings: Placer gold tailings are present along the lower 3,000 feet of St. Michaels Creek, where it was extensively dredged.
Age: Quaternary.
Production: St. Michaels Creek may have made significant contributions to placer gold production in this area.
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Alluvial placer Au (Cox and Singer, 1986; model 39a).
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
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | NM277 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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