Unnamed Occurrence (ARDF - NM137; in Daisy Swift Creek), Nome Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - NM137; in Daisy Swift 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° 43' 3'' North , 165° 39' 28'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Nome | 3,806 (2018) | 26.9km |
The source of the high zinc concentrations in stream sediments has not been determined.
Location: Daisy Swift Creek is a mile-long east tributary to upper Cripple River. Its mouth is 4.5 miles upstream from where the Nome-Teller road crosses Cripple River. The location is of the stream sediment anomaly at an elevation of about 650 feet; it is within about 500 feet of outcropping mineralized rock.
Geology: During reconnaissance mapping of the area in 1990 by Kennecott Exploration Company, 2,300 ppm zinc and anomalous amounts of gold were found in a stream sediment sample from Daisy Swift Creek. The gold content of a panned concentrate from Daisy Swift Creek, collected about 2,000 feet above its mouth, was 1,570 ppb gold. Followup of stream sediment and panned concentrate samples led to discovery of a pyritized metabasite unit that contained more than 0.1 ounce of gold per ton and anomalous amounts of antimony. The source of the zinc anomaly was not determined. Daisy Swift Creek flows generally northwest in a schist unit between major bodies of the massive marble unit of Bundtzen and others (1994). The schist is mainly calc-schist, but locally it includes silicic units of probable felsic volcanic origin. The schist also includes large boudin-like masses of metabasite (C.C. Hawley, Cindy Buxton, and D.L. Olson, written communication, 1992).
Workings: The area was explored from 1990 to 1992 by Kennecott Exploration Co.; there is no evidence of previous exploration.
Alteration: Pyritization.
Commodities (Major) - Au, Zn; (Minor) - Sb
Development Status: None
Deposit Model: Pyritized metabasite with Au.
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | NM137 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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