Unnamed Occurrence (ARDF - CV055; southwest of lower Scott Glacier), Copper River Mining District, Valdez-Cordova Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
60° 37' 11'' North , 145° 19' 8'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Cordova | 2,196 (2017) | 25.5km |
Mindat Locality ID:
200669
Long-form identifier:
mindat:1:2:200669:0
GUID (UUID V4):
e8112f09-f5a0-497f-a9c7-862bd912ae41
Occurrence is in the Chugach National Forest.
Location: This occurrence is at an elevation of about 1000 feet approximately 0.5 mile southeast of lower Scott Glacier. It is in the SE1/4 sec. 25, T. 14 S., R. 1 W., of the Copper River Meridian. Site accurate to within 1000 ft. Site is location C-16 of Jansons and others (1984).
Geology: This occurrence consists of a 1000 ft. x 200 ft. outcrop area containing several shear zones up to several feet wide in slate and graywacke of the Tertiary Orca Group (Nelson and others, 1985). Sulfides, including bornite, chalcopyrite, pyrrhotite, and sphalerite, occur as lenses and disseminations both in the country rocks and in the shear zones (Jansons and others, 1984). Samples collected and analyzed by the U.S. Bureau of Mines showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm to 5.9% Zn, and <0.1 ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% Cu, 58 ppm to 8.7% Zn, and 0.1 ppm to 8 oz. Ag/ton.
Workings: Samples collected and analyzed by the U.S. Bureau of Mines showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm to 5.9% Zn, and <0.1 ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% Cu, 58 ppm to 8.7% Zn, and 0.1 ppm to 8 oz. Ag/ton (Jansons and others, 1984).
Reserves: Inferred reserves of 19,300 tons @ 1.06% Cu, 2.06% Zn, and 13.6 ppm Ag (Jansons and others, 1984).
Commodities (Major) - Cu, Zn; (Minor) - Ag
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
4 valid minerals.
Detailed Mineral List:
| β Bornite Formula: Cu5FeS4 |
| β Chalcopyrite Formula: CuFeS2 |
| β Pyrrhotite Formula: Fe1-xS |
| β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Bornite | 2.BA.15 | Cu5FeS4 |
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrrhotite | 2.CC.10 | Fe1-xS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | β Bornite | Cu5FeS4 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrrhotite | Fe1-xS |
| S | β Sphalerite | ZnS |
| Fe | Iron | |
| Fe | β Bornite | Cu5FeS4 |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | β Bornite | Cu5FeS4 |
| Cu | β Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | β Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | CV055 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Yakutat-Malaspina DomainDomain
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References
