Whiting River; Lost Charlie Ross Prospect, Juneau Mining District, Juneau, Alaska, USAi
Regional Level Types | |
---|---|
Whiting River; Lost Charlie Ross Prospect | Prospect |
Juneau Mining District | Mining District |
Juneau | City Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
58° 2' 59'' North , 133° 26' 34'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
202909
Long-form identifier:
mindat:1:2:202909:5
GUID (UUID V4):
6131b616-c6f5-4913-a3ba-d47072d81d98
Location: This prospect, marked by a symbol on the topographic map, is about 2 miles east of the Whiting River at an elevation of about 3,000 feet. It is near the southeast corner of section 15, T. 44 S., R. 73 E. of the Copper River Meridian. This is location T019 of Wells and others (1986). The location is accurate.
Geology: This prospect is in the Coast Range plutonic-metamorphic complex which consists of high-grade schist and gneiss intruded by Cretaceous and Tertiary granodiorite. The metamorphic rocks are derived from volcanic, pelitic, and minor carbonate strata of unknown protolith age (Brew and Ford, 1974, 1984). Brew and Ford (1985) show the prospect in sphene-bearing biotite-hornblende granodiorite associated with a large pendant of marble and calc-silicate granofels immediately to the east. The Whiting River prospect, also referred to as the Lost Charlie Ross, consists of several quartz veins in a dolomite roof pendant within diorite (Cobb, 1978 [OFR 78-698]). The dolomite is probably part of an assemblage of Paleozoic metamorphic rocks that outcrop discontinuously to the south of the Whiting River (Clough, 1990). Knopf (1910) describes the deposit as a quartz vein 4.5 feet wide and 100 feet long that contains arsenopyrite, pyrite, sphalerite, galena, and chalcopyrite. A sample of 'a streak of solid mineral 11 inches wide' on the footwall assayed more than 1 ounce of gold per ton, 50 ounces of silver per ton, and 40% lead. The dominant sulfide is arsenopyrite. Buddington (1929) describes an open cut along the vein and a 118-foot crosscut that did not reach the vein; also that the prospect has been known since 1898.
Workings: Buddington (1929) describes an open cut along the vein and a 118-foot crosscut that did not reach the vein; also that the prospect has been known since 1898.
Commodities (Major) - Ag, Au, Pb; (Minor) - Cu, Zn
Development Status: No
Deposit Model: Polymetallic replacement deposit (Cox and Singer, 1986; Model 19a)
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:
ⓘ Arsenopyrite Formula: FeAsS |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Galena ? Formula: PbS |
ⓘ Galena var. Silver-bearing Galena ? Formula: PbS with Ag |
ⓘ 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 |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Galena ? | 2.CD.10 | PbS |
ⓘ | var. Silver-bearing Galena ? | 2.CD.10 | PbS with Ag |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
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 | ⓘ Arsenopyrite | FeAsS |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Galena | PbS |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Sphalerite | ZnS |
S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Fe | Iron | |
Fe | ⓘ Arsenopyrite | FeAsS |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
As | Arsenic | |
As | ⓘ Arsenopyrite | FeAsS |
Ag | Silver | |
Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
Link to USGS - Alaska: | TR018 |
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