Unnamed Occurrence (ARDF - NB013; east of upper Trail Creek), Chisana Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - NB013; east of upper Trail Creek) | - not defined - |
Chisana Mining District | Mining District |
Valdez-Cordova Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
62° 36' 48'' North , 143° 13' 40'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201379
Long-form identifier:
mindat:1:2:201379:7
GUID (UUID V4):
aa3c53c0-e151-4868-9759-6b0192a62086
The occurrence is in the Wrangell-St. Elias National Preserve.
Location: This occurrence is on a high ridge east of upper Trail Creek. It is at an elevation of about 6,000 feet, 3,600 feet northwest of peak 7080 and 5,800 feet east of Trail Creek. The occurrence is about 0.3 mile south-southwest of the center of section 30, T. 10 N., R. 12 E. of the Copper River Meridian. This is locality 2 of Richter and Schmoll (1973), locality 8 of Richter and others (1975), and National Park Service locality WRST-8 (unpublished data). Cobb and Richter (1980) included this locality as an 'Unnamed' occurrence'. It is located to within a few hundred feet.
Geology: Small quartz-carbonate veins that contain galena, sphalerite, and tetrahedrite occur in the border zone of a small diorite porphyry stock (Richter and others, 1975). The diorite porphyry stock, part of a Cretaceous or Tertiary intrusive suite, intrudes Triassic limestone at this locality.
Workings: Only reconnaissance surface observations.
Age: Cretaceous or Tertiary. The host diorite porphyry is part of an intrusive suite that cuts rocks as young as Jurassic or Cretaceous in the headwaters of Trail Creek (Richter and Schmoll, 1973; Richter, 1976).
Commodities (Major) - Ag, Pb, Zn
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.
Detailed Mineral List:
ⓘ Galena Formula: PbS |
ⓘ Quartz Formula: SiO2 |
ⓘ Sphalerite Formula: ZnS |
ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
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 |
ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
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 | ⓘ Galena | PbS |
S | ⓘ Sphalerite | ZnS |
S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Cu | Copper | |
Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
Sb | Antimony | |
Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Other Databases
Link to USGS - Alaska: | NB013 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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