Unnamed Occurrence (ARDF - MM037; ridge northwest of Kankone Peak), Kantishna Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - MM037; ridge northwest of Kankone Peak) | - not defined - |
| Kantishna Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 37' 37'' North , 150° 36' 54'' West
Latitude & Longitude (decimal):
Köppen climate type:
The occurrence is in Denali National Park and Preserve.
Location: This occurrence is at an elevation of about 4050 feet on a northwest- trending ridge crest, about 1/2 mile northwest of Kankone Peak. The location is accurate within 500 feet. The occurrence corresponds to mineral deposit 281 of Hawley and Associates (1978), and occurrence 97 of Thornsberry, McKee, and Salisbury (1984).
Geology: The country rocks at this occurrence are quartzite and mica-quartz schist of the Birch Creek Schist. The schistosity strikes NE and dips moderately SE (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The occurrence is an iron-stained shear zone that trends about N. 55 E. and can be traced for about 1200 feet. The zone contains minor amounts of quartz; it is strongly oxidized and leached, but the former presence of pyrite is suggested by the limonite minerals goethite and jarosite. One sample contained 6800 ppm lead, and 6000 ppm zinc (Hawley and Associates, 1978, fig. 4.1-A(1), sample number 281), suggesting that small amounts of galena and sphalerite, or their oxidized equivalents, are present. The sample also contained 31 ppm silver. Thornsberry, McKee, and Salisbury (1984, v. 2) reported anomalous amounts of silver, lead, and zinc from weathered surface material at the site.
Workings: There are no workings.
Age: The deposit is assumed to be Eocene (see record MM091).
Alteration: Oxidation and leaching of sulfide(?)-bearing shear zone.
Commodities (Major) - Ag; (Minor) - Pb, Zn
Development Status: None
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
6 valid minerals.
Detailed Mineral List:
| ⓘ Galena ? Formula: PbS |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena ? | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | Oxygen | |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | MM037 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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