Unnamed Occurrence (ARDF - MG005; in western Candle Hills), Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - MG005; in western Candle Hills) | - not defined - |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 52' 1'' North , 155° 51' 39'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| McGrath | 344 (2017) | 16.7km |
Mineralization may be related to the Au-polymetallic prospect in the valley of Candle Creek (MG003).
Location: This occurrence is located at the rim of a prominent spur in the western Candle Hills about 3 kilometers due west of Candle placer mine (MG002) at an elevation of 1,000 feet (304 m) in the NW1/4 sec. 16, T. 32 N., R. 35 W., of the Seward Meridian. The reporter investigated the site in 1978 (as ADGGS station no. 78BT364).
Geology: This occurrence consists of chalcopyrite blebs and disseminations in quartz-epidote veinlets hosted in a porphyritic, subaerial basalt radiometrically dated at 73 Ma (Bundtzen and Miller, 1997). The occurrence is limited to a small 5 meter by 6 meter outcrop surrounded by vegetation and talus. One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).
Workings: One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).
Age: Unknown; probably associated with 69-73Ma Candle volcanic-plutonic complex.
Alteration: Epidote.
Reserves: None.
Commodities (Major) - Cu; (Minor) - Ag
Development Status: No
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
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:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | Oxygen | |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Quartz | SiO2 |
| Al | Aluminium | |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Ca | Calcium | |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | MG005 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
USA
- Alaska
- Yukon-Koyukuk Census Area
- McGrath Mining DistrictMining District
- Yukon-Koyukuk Census Area
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