Banzer Prospect, Copper River Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types | |
---|---|
Banzer Prospect | Prospect |
Copper River Mining District | Mining District |
Valdez-Cordova Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
60° 48' 36'' North , 146° 32' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Valdez | 3,870 (2017) | 37.1km |
Mindat Locality ID:
196375
Long-form identifier:
mindat:1:2:196375:8
GUID (UUID V4):
71b4e5ee-045d-4c79-96ba-b31f3cbbdc55
Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. Chugach Alaska Corporation, Anchorage, Alaska has control of these lands.
Location: The Banzer prospect is at an elevation of less than 100 feet, about 0.75 mile northeast of Graveyard Point at the mouth of Landlocked Bay. It is in the NW1/4 sec. 19, T. 12 S., R. 7 W., of the Copper River Meridian. The location of the site is accurate to within 2000 ft. This site is loc. C- 67 in Jansons and others (1964) and loc. 17 in Cobb (1972: MF-392).
Geology: The Banzer prospect consists of sulfide-bearing quartz-calcite veins and of irregular clumps and stringers of sulfides in mafic volcanic rocks of the Tertiary Orca Group (Nelson and others, 1985; Cobb, 1979: OF 79-973). Sulfides reportedly include chalcopyrite, galena, pyrite, and pyrrhotite. Capps and Johnson (1915) reported that there were two shafts and more than 200 feet of stripping completed by 1912. Assays of ore yielded values of 2.42 oz. Au/ton. The prospect could not be located in the early 1980s but assays of two grab samples of float from the general area of the prospect contained 0.08 ppm to 0.22 ppm Au, 0.1 ppm to 6.9 ppm Ag, and 22 ppm to 0.24% Cu (Jansons and others, 1984).
Workings: Capps and Johnson (1915) reported that there were two shafts and more than 200 feet of stripping completed by 1912. Assays of ore yielded values of 2.42 oz. Au/ton. The prospect could not be located in the early 1980s but assays of two grab samples of float from the general area of the prospect contained 0.08 ppm to 0.22 ppm Au, 0.1 ppm to 6.9 ppm Ag, and 22 ppm to 0.24% Cu (Jansons and others, 1984).
Age: Probably Tertiary based on the age of the host rock.
Commodities (Major) - Au,Cu, Pb, Zn
Development Status: None
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
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:
ⓘ Calcite Formula: CaCO3 |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Galena Formula: PbS |
ⓘ Pyrite Formula: FeS2 |
ⓘ Pyrrhotite Formula: Fe1-xS |
ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
ⓘ | Galena | 2.CD.10 | PbS |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | ⓘ Calcite | CaCO3 |
O | Oxygen | |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Quartz | SiO2 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Galena | PbS |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Pyrrhotite | Fe1-xS |
Ca | Calcium | |
Ca | ⓘ Calcite | CaCO3 |
Fe | Iron | |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Fe | ⓘ Pyrrhotite | Fe1-xS |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Other Databases
Link to USGS - Alaska: | CV024 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Yakutat-Malaspina DomainDomain
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