Unnamed Prospect (ARDF - IL051; on peninsula south of Bruin Bay), Redoubt Mining District, Kenai Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - IL051; on peninsula south of Bruin Bay) | - not defined - |
| Redoubt Mining District | Mining District |
| Kenai Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
59° 20' 56'' North , 154° 0' 43'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This prospect is on or near the north shoreline of the peninsula between Bruin Bay and Kamishak Bay, about two miles west of Contact Point. It probably is in the E1/2 sec. 32, T. 9 S., R. 28 W., Seward Meridian. The location is probably accurate within about 0.5 mile. It includes site no. 16 of Detterman and Cobb (1972), which is appreciably inland. A mineral locality described in Detterman and Reed (1980, fig. 6) may be about 0.5 mile farther east.
Geology: This prospect appears to be in Jurassic quartz monzonite (Detterman and Reed, 1980; Detterman and Reed, 1964). A grab sample from an old prospect pit (Detterman and Reed, 1964, sample no. 120) contained more than 10 percent iron, 2 percent zinc, 0.05 percent each of copper and cadmium, and 0.01 percent each of lead and tin. Additional samples may have contained more copper, inasmuch as Detterman and Reed (1980, fig. 6) show the same or a nearby prospect as a copper deposit. The ore minerals are not described, but the assays suggest that the prospect contains sphalerite, chalcopyrite, and pyrite, or their oxidation products. The tin value may reflect its background level in the quartz monzonite; other prospects in Jurassic quartz monzonite in the area contain small amounts of tin (see, for example, Diamond Point, IL018).
Workings: The deposit was explored by a prospect pit (Detterman and Reed, 1964).
Age: Probably Jurassic, the age of the host rock.
Commodities (Major) - Cu, Fe, Zn; (Minor) - Cd, Pb, Sn
Development Status: None
Deposit Model: Possibly polymetallic vein (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:
| ⓘ Chalcopyrite ? Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ 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 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | IL051 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Peninsular-Talkeetna DomainDomain
- Peninsular TerraneVolcanic Arc
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