Montana Creek Prospect, Innoko Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Montana Creek Prospect | Prospect |
| Innoko Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 34' 58'' North , 155° 58' 47'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
See Colorado Creek (MD014).
Location: The Montana placer prospect is located on about 2 miles (3.2 km) of Montana Creek, a tributary of Colorado Creek, from an elevation of 1,400 feet (427 m) to about 1,000 feet (304 m), in Section 21, T. 22 S., R. 15 E., of the Kateel River Meridian. The reporter visited the site in 1996.
Geology: The Montana placer prospect consists of a left-limit bench on Montana Creek over a distance of about 2 miles (3.2 km). Overburden ranges from 20 to 40 feet (6 m to 12 m) thick, and auriferous gravels average about 10 feet (3 m) thick. Reconnaissance drilling suggests that most values are on bedrock. The auriferous gravels are overlain by Quaternary eolian and colluvial deposits (Thorson and Guthrie, 1982). The Montana Creek Placer deposit is inferred to be Pleistocene, based on isotopically dated Quaternary units in Colorado Creek (Thorson and Guthrie, 1982).
Workings: The prospect was first mentioned by Mertie (1936). According to Steve Neirod and Ron Rosander (oral commun., 1982), a reconnaissance churn drilling program in the 1950s conducted by Strandberg and Sons Mines Inc. encountered a low grade gold-bearing paystreak of unknown extent.
Age: The Montana Creek Placer deposit is inferred to be Pleistocene, based on isotopically dated Quaternary units in Colorado Creek (Thorson and Guthrie, 1982).
Production: No production records have been found. In 1996 and 1997, a small exploration camp was being assembled at Colorado Creek for a placer drilling program on Montana Creek.
Reserves: None.
Commodities (Major) - Ag, Au; (Minor) - Sn, Ti, Zr
Development Status: Undetermined.
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model no. 39c)
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
3 valid minerals.
Detailed Mineral List:
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Zircon | Zr(SiO4) |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Other Databases
| Link to USGS - Alaska: | MD015 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell-Innoko-Idono DomainDomain
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