Jumbo Occurrence (near Texas Creek), Hyder Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Jumbo Occurrence (near Texas Creek) | Occurrence |
| Hyder Mining District | Mining District |
| Prince of Wales-Hyder Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
56° 3' 10'' North , 130° 12' 25'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Stewart | 496 (2013) | 18.9km |
Mindat Locality ID:
198260
Long-form identifier:
mindat:1:2:198260:5
GUID (UUID V4):
b8b370cd-d875-4341-8743-91f764e09df9
Prospect originally staked in 1925
Location: The Jumbo occurrence near Texas Creek is on or near the boundary of Sections 14 and 23 at an elevation of about 3750 feet on a north-facing mountainside overlooking the West Fork of Texas Creek and about 1.8 mile due east of Texas Lake (Elliott and Koch, 1981, p. 13, loc. 44). The location is probably accurate to within about a quarter of a mile.
Geology: The country rocks in the area of this occurrence are pelitic metasedimentary and subordinate andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group, which is underlain and locally intruded by the Triassic Texas Creek Granodiorite (Smith, 1977; Koch, 1996). The deposit (Buddington, 1929, p. 111) is in a graywacke roof pendant in granodiorite and consists of quartz-cemented graywacke breccia in a shear zone 1-3.5 feet wide. The quartz ranges from one-inch stringers to two-foot veins and carries local shoots of galena, pyrite, and chalcopyrite. Some of the graywacke country rock is impregnated with pyrite and a little chalcopyrite. A 10-inch wide intersecting fissure zone contains 6 inches of quartz carrying galena, pyrite, and a little chalcopyrite and sphalerite.
Alteration: Graywacke wallrock adjacent to quartz veins is impregnated with sulfide minerals.
Commodities (Major) - Cu, Pb, Zn
Development Status: None
Deposit Model: Polymetallic veins
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
5 valid minerals.
Detailed Mineral List:
| β Chalcopyrite Formula: CuFeS2 |
| β Galena Formula: PbS |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Quartz | SiO2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| S | β Galena | PbS |
| S | β Pyrite | FeS2 |
| S | β Sphalerite | ZnS |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | β Sphalerite | ZnS |
| Pb | Lead | |
| Pb | β Galena | PbS |
Other Databases
| Link to USGS - Alaska: | BC044 |
|---|
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References
