Unnamed Occurrence (ARDF - MH235; east-southeast of the toe of McCallum Glacier), Delta River Mining District, Southeast Fairbanks Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
63° 16' 48'' North , 145° 33' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of 5,200 feet approximately 1 mile east-southeast of the toe of McCallum Glacier. It is in the NW1/4SW1/4 section 12, T. 19 S., R. 11 E., Fairbanks Meridian. The occurrence is described by Hanson (1963, locality 12), and it corresponds to locality 26 in Cobb (1979 [OFR 79-238]) and locality S119 in table 2 of Nokelberg and others (1991).
Geology: This occurrence consists of chalcopyrite and galena in scattered areas of small quartz veins in metadacite tuff of the Slana Spur Formation of Pennsylvanian age (Hanson, 1963; Nokleberg and others, 1991). Samples of the mineralized quartz veins assayed 0.4 to 0.5 percent copper, 0.4 to 0.5 percent lead, and a trace of gold (Hanson, 1963).
Workings: Samples of the mineralized quartz veins assayed 0.4 to 0.5 percent copper, 0.4 to 0.5 percent lead, and a trace of gold (Hanson, 1963).
Age: Pennsylvanian or younger.
Commodities (Major) - Cu, Pb; (Minor) - Au
Development Status: None
Deposit Model: Polymetallic veins (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.
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 |
| 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 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | MH235 |
|---|
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