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Chute Creek Mine, Bonnifield Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Chute Creek Mine | Mine |
| Bonnifield Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 56' 23'' North , 147° 44' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The Chute Creek mine is at an elevation of about 3,500 feet on the southwest side of Chute Creek. It is at the NE1/4 of sec. 28, T. 11 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 2 miles. This is location 4 of Clark and Cobb (1972), and location 5 of Cox and others (1989).
Geology: The Chute Creek mine is in Totatlanika Schist, a sequence mainly of predominantly felsic and mafic metavolcanic and metavolcaniclastic rocks that is dated as Early Mississippian to Middle Devonian (Wilson and others, 1998). At the mine the schist is cut by Cretaceous(?) rhyolite porphyry. The deposit consists of disseminated pyrite, in a zone 100 to 250 ft wide, in altered and sheared rhyolite porphyry. Capps (1912) reported grades of up to 0.435 ounce of gold per ton.
Workings: The mine has both surface and underground workings. In 1910 a 30 foot adit was driven. Capps (1911) reported that a small mill operated at the site for a month in 1909.
Age: Cretaceous(?) or younger.
Alteration: Phyllic.
Production: Unknown.
Commodities (Major) - Ag, Au
Development Status: Yes; small
Deposit Model: Porphyry Cu-Au(?) (Cox and Singer, 1986; model 20c)
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:
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | HE101 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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