Unnamed Occurrence (ARDF - MH237; east-northeast of the toe of McCallum Glacier), Delta River Mining District, Southeast Fairbanks Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
63° 17' 25'' North , 145° 33' 43'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence at an elevation of 6,200 feet approximately 1 mile east-northeast of the toe of McCallum Glacier. It is near the southwest corner of section 1, T. 19 S., R. 11 E., Fairbanks Meridian. The occurrence is described by Hanson (1963, p. 73), and it corresponds to locality 28 in Cobb (1979 [OFR 79-238]) and to locality S117 in table 2 of Nokelberg and others (1991).
Geology: This occurrence consists of chalcopyrite, galena, and pyrite disseminated in silicified granodiorite (Hanson, 1963). The mineralization probably is associated with the granodiorite that intrudes the Slana Spur Formation of Pennsylvanian age (Nokleberg and others, 1991).
Age: Pennsylvanian or younger.
Alteration: The granodiorite is silicified.
Commodities (Major) - Cu, Pb
Development Status: No
Deposit Model: Porphyry Cu (Cox and Singer, 1986; model 17).
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
4 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | MH237 |
|---|
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