Porcupine River--ancient channel placer Occurrence, Sheenjek Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Porcupine River--ancient channel placer Occurrence | Occurrence |
| Sheenjek Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 19' 58'' North , 141° 16' 30'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
199462
Long-form identifier:
mindat:1:2:199462:2
GUID (UUID V4):
055cfe1c-ff67-43bf-b84e-6e51133ccb25
See MAS/MILS Sequence # 0020330010 (USBM, 1995)
Location: Location plotted is locality 3 of Barker (1981, p. 47) and 9a of Barker and Clautice (1978, p. 14), in abandoned stream drainage perched about 300 ft (91 m) above river level on south side of Porcupine River, midway between the junctions of Campbell River and Fred Creek, and about 9 mi (14.4 km) downstream from the Yukon border; located to within 1000 ft (305 m).
Geology: Placer deposit in abandoned channel now perched 100-300 ft (30.5-91.5 m) above river level; probably derived from granitic igneous rocks 10-35 mi (16-56 km) upstream in Yukon Territory (Barker and Clautice, 1978, p.19, no.9).
Workings: Panned samples contained 10,000 ppm Zn, 5000 ppm Sn, and minor tungsten (Barker, 1981, p. 117-120).
Commodities (Major) - Sn; (Minor) - B, Pb, Rare earth elements, W, Zn
Development Status: No
Deposit Model: Placer, stream
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
2 valid minerals.
Detailed Mineral List:
| β Cassiterite Formula: SnO2 |
| β Scheelite Formula: Ca(WO4) |
| β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Cassiterite | 4.DB.05 | SnO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Scheelite | 7.GA.05 | Ca(WO4) |
| Unclassified | |||
| β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| B | Boron | |
|---|---|---|
| B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | β Cassiterite | SnO2 |
| O | β Scheelite | Ca(WO4) |
| O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| Ca | Calcium | |
| Ca | β Scheelite | Ca(WO4) |
| Sn | Tin | |
| Sn | β Cassiterite | SnO2 |
| W | Tungsten | |
| W | β Scheelite | Ca(WO4) |
Other Databases
| Link to USGS - Alaska: | CO018 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Kandik basinBasin
- Porcupine DomainDomain
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References
