Unnamed Occurrence (ARDF - MM003; west-southwest of Chitsia Mountain), Kantishna Mining District, Denali Borough, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - MM003; west-southwest of Chitsia Mountain) | - not defined - |
Kantishna Mining District | Mining District |
Denali Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
63° 57' 39'' North , 150° 20' 27'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
201331
Long-form identifier:
mindat:1:2:201331:5
GUID (UUID V4):
2767b662-e2c4-47e6-b7ba-e6a8c990009c
The occurrence is in Denali National Park and Preserve.
Location: This occurrence is at an elevation of about 2300 feeton an unnamed ridge about 1.4 miles west-southwest of Chitsia Mountain. The location is accurate within 500 feet. It corresponds to number 33 of MacKevett and Holloway (1977), 74 of Bundtzen, Smith, and Tosdal (1976), 55 of Hawley and Associates (1978), and 83 of Bundtzen (1981), and is cited as an unnamed location by Cobb (1980 [OFR 80-363]).
Geology: The country rock at this occurrence is metarhyolite porphyry of the Totatlanika Formation, a volcanic-rich unit of Late Devonian and Mississippian age (Bundtzen, 1981). The deposit is a mineralized quartz vein 1 to 3 feet thick that strikes N 20-40 W, and is almost vertical. The vein is oxidized to a lead- and silver-bearing limonitic boxwork (gossan) that contains cerussite and, probably, small amounts of remnant galena and sphalerite. Selected samples of the vein assayed 3.10-10.5 percent lead, 1.17-2.73 ounces of silver per ton, 0.24 percent zinc, 0.02 ounce of gold per ton, and up to 72 ppm molybdenum, 24 ppm uranium, and 15 ppm thorium (Bundtzen, 1981, table 10, number 83). Although speculative, the trace element geochemistry of this vein is at least permissive of a syngenetic or diagenetic origin, related to Upper Devonian or Mississippian Totatlanika volcanism (Bundtzen, 1981). An Eocene age is also possible (see MM091).
Workings: There are no workings.
Age: Although speculative, the trace element geochemistry of this vein is at least permissive of a syngenetic or diagenetic origin, related to Upper Devonian or Mississippian Totatlanika volcanism (Bundtzen, 1981). An Eocene age is also possible (see MM091).
Alteration: Oxidation of iron and lead minerals.
Commodities (Major) - Pb; (Minor) - Ag, Au, Mo, Th, U, Zn
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
4 valid minerals.
Detailed Mineral List:
β Cerussite Formula: PbCO3 |
β Galena Formula: PbS |
β 'Limonite' |
β Quartz Formula: SiO2 |
β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Sphalerite | 2.CB.05a | ZnS |
β | Galena | 2.CD.10 | PbS |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Cerussite | 5.AB.15 | PbCO3 |
Unclassified | |||
β | 'Limonite' | - |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | β Cerussite | PbCO3 |
O | Oxygen | |
O | β Cerussite | PbCO3 |
O | β Quartz | SiO2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Galena | PbS |
S | β Sphalerite | ZnS |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Pb | Lead | |
Pb | β Cerussite | PbCO3 |
Pb | β Galena | PbS |
Other Databases
Link to USGS - Alaska: | MM003 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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