Porcupine; Porcupine Gold Mining Co. Occurrence, Hope Mining District, Kenai Peninsula Borough, Alaska, USAi
Regional Level Types | |
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Porcupine; Porcupine Gold Mining Co. Occurrence | Occurrence |
Hope Mining District | Mining District |
Kenai Peninsula Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
60° 19' 47'' North , 149° 24' 0'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Primrose | 111 (2006) | 6.9km |
Moose Pass | 219 (2014) | 17.6km |
Bear Creek | 1,956 (2017) | 18.4km |
Seward | 2,790 (2017) | 25.2km |
Cooper Landing | 289 (2017) | 29.4km |
Mindat Locality ID:
199464
Long-form identifier:
mindat:1:2:199464:6
GUID (UUID V4):
9815b039-c6c1-45f3-9fc8-829e5fa7af8b
Jansons and others (1984) and Tysdal (1978 [MF-880-A]) described the site as being on Porcupine Creek. Martin and others (1915) identified this creek as Porcupine Creek. The 1994 USGS B7 topographic map has labelled this creek Primrose Creek, but the USGS B7-SE topographic calls it Porcupine Creek.
Location: The occurrence is located about 1.5 miles from the mouth of Porcupine Creek near its junction with Primrose Creek. It is in the SE1/4 section 23, T. 3 N., R. 1 W., of the Seward Meridian. This is location 80 of Tysdal (1978 [MF-880-A]) and location S-215 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The occurrence consists of quartz-calcite veins within and parallel to a shear zone in slate and sandstone of the Valdez Group of Late Cretaceous age (Cobb and Tysdal, 1980; Nelson and others, 1985). The veins strike N23E and dip 80E; they are from 6 to 9 inches wide (Martin and others, 1915). The minerals include arsenopyrite, galena, pyrite, pyrrhotite, and sphalerite; native gold is also present.
Workings: There are no workings or improvements and no assay results reported in the literature.
Age: Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.
Commodities (Major) - Au; (Minor) - Pb, Zn
Development Status: None
Deposit Model: Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
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
8 valid minerals.
Detailed Mineral List:
β Arsenopyrite Formula: FeAsS |
β Calcite Formula: CaCO3 |
β Galena Formula: PbS |
β Gold Formula: Au |
β Pyrite Formula: FeS2 |
β Pyrrhotite Formula: Fe1-xS |
β Quartz Formula: SiO2 |
β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
β | Sphalerite | 2.CB.05a | ZnS |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
β | Galena | 2.CD.10 | PbS |
β | Pyrite | 2.EB.05a | FeS2 |
β | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | β Calcite | CaCO3 |
O | Oxygen | |
O | β Calcite | CaCO3 |
O | β Quartz | SiO2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Arsenopyrite | FeAsS |
S | β Galena | PbS |
S | β Pyrite | FeS2 |
S | β Pyrrhotite | Fe1-xS |
S | β Sphalerite | ZnS |
Ca | Calcium | |
Ca | β Calcite | CaCO3 |
Fe | Iron | |
Fe | β Arsenopyrite | FeAsS |
Fe | β Pyrite | FeS2 |
Fe | β Pyrrhotite | Fe1-xS |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
As | Arsenic | |
As | β Arsenopyrite | FeAsS |
Au | Gold | |
Au | β Gold | Au |
Pb | Lead | |
Pb | β Galena | PbS |
Other Databases
Link to USGS - Alaska: | SR196 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainDomain
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