Louise Prospect, Aniak Mining District, Bethel Census Area, Alaska, USAi
Regional Level Types | |
---|---|
Louise Prospect | Prospect |
Aniak Mining District | Mining District |
Bethel Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
61° 39' 57'' North , 159° 7' 4'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Chuathbaluk | 125 (2017) | 12.4km |
Aniak | 528 (2017) | 23.5km |
Mindat Locality ID:
198609
Long-form identifier:
mindat:1:2:198609:2
GUID (UUID V4):
0477a1b1-169f-465e-8131-c841514e8a0e
Location: This prospect is on the west side of the cirque valley at the head of Cobalt Creek in the Russian Mountains. The map site is at an elevation of about 1,850 feet, about 0.25 mile west of a small cirque-basin lake, in the NW1/4 sec. 8, T. 18 N., R. 54 W., of the Seward Meridian. This is sample locality 12 of Bundtzen and Laird (1991).
Geology: The Louise prospect is about 1,500 feet northwest of the Owhat prospect (RM016). According to Bundtzen and Laird (1991), it was first reported by Holzheimer (1926) as a 1,000-foot-long gold-arsenic deposit. Bundtzen and Laird (1991) described the deposit as an arsenopyrite, chalcopyrite, quartz, and black tourmaline vein that trends northwest for at least 245 feet along the contact between syenite and an altered andesite porphyry dike. The width of this poorly exposed vein could not be determined. A sample of the vein contained 4.1 ppm gold, 10 percent arsenic, 0.99 percent antimony, and 0.12 percent tin (Bundtzen and Laird, 1991). The host rocks are part of the Upper Cretaceous intrusive complex of the Russian Mountains.
Workings: Surface observation and sampling have been completed (Bundtzen and Laird, 1991).
Age: Late Cretaceous or Tertiary. Veins crosscut part of the intrusive complex of the Russian Mountains. Quartz monzonite from this complex has yielded a K/Ar age of 70.3 +/- 2.1 Ma (Bundtzen and Laird, 1991).
Alteration: Quartz and tourmaline veining.
Commodities (Major) - Au; (Minor) - Sb, Sn
Development Status: None
Deposit Model: Polymetallic veins? (Cox and Singer, 1986; model 22c)
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
3 valid minerals.
Detailed Mineral List:
β Arsenopyrite Formula: FeAsS |
β Chalcopyrite Formula: CuFeS2 |
β Quartz Formula: SiO2 |
β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Unclassified | |||
β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
B | Boron | |
---|---|---|
B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | Oxygen | |
O | β Quartz | SiO2 |
O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Arsenopyrite | FeAsS |
S | β Chalcopyrite | CuFeS2 |
Fe | Iron | |
Fe | β Arsenopyrite | FeAsS |
Fe | β Chalcopyrite | CuFeS2 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
As | Arsenic | |
As | β Arsenopyrite | FeAsS |
Other Databases
Link to USGS - Alaska: | RM017 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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