Unnamed Occurrence (ARDF - ID124; north bank of Bonanza Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID124; north bank of Bonanza Creek) | - not defined - |
| Iditarod Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 21' 23'' North , 157° 49' 37'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Crooked Creek | 105 (2016) | 56.0km |
Mindat Locality ID:
200881
Long-form identifier:
mindat:1:2:200881:6
GUID (UUID V4):
8359a42d-c09e-4a45-94c6-8ff2291a9605
Location: This occurrence is exposed on a small bluff on the north side of Bonanza Creek, about 2.0 miles northeast of the mouth of First Chance Creek. It is about 0.3 mil west-southwest of the center of section 9, T. 26 N., R. 46 W., of the Seward Meridian. The location is accurate.
Geology: This prospect is a stibnite-quartz vein up to 3 feet thick near a granite porphyry dike or sill that is similar to the sill at the occurrences about a half mile to the northeast (ID124) (Bundtzen and others, 1992; Miller, Bundtzen, and Gray, 2005). The rocks in the area are shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994). The orientation of the vein is uncertain. Masses of stibnite up to 1 inch thick were noted in the quartz gangue of the vein but no other sulfides were identified. Grab samples contained more than 1.00 percent antimony, 1.0 part per million (ppm) silver, 300 ppm lead, 120 ppm arsenic, and a trace of gold (McGimsey and others, 1988).
Workings: Samples were collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in the 1980s (McGimsey and others, 1988).
Alteration: Silicification.
Commodities (Major) - Sb; (Minor) - Ag, As, Au, Pb
Development Status: None
Deposit Model: Simple Sb vein (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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | 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 | ⓘ Stibnite | Sb2S3 |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
Other Databases
| Link to USGS - Alaska: | ID124 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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References
