Lupin Prospect, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Lupin Prospect | Prospect |
| Valdez Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 13' 33'' North , 149° 37' 26'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
See Bunkhouse (HE039).
Location: The Lupin prospect is at an elevation of about 2,800 feet, on the northwest bank of Bryn Mawr Creek. The map site is in the NE1/4 of sec. 34, T. 19 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet.
Geology: The Lupin prospect is about 3,100 feet northeast of the Golden Zone mine (HE043). The country rocks at the prospect are faulted, Triassic redbed sedimentary rocks. The deposit consists of fault-controlled quartz veins containing arsenopyrite and chalcopyrite. The hostrocks adjacent to the veins are bleached and argillized (unpublished report by Addwest Minerals International Ltd., 1997). Drilling has identified sericitized dikes but their relation to the deposit is not clear. The Lupin deposit closely resembles the deposit at the Bunkhouse prospect (HE039).
Workings: Trenching and one drill hole have been completed at the prospect.
Age: Late Cretaceous or younger (see HE043).
Alteration: Narrow zones adjacent to the veins are bleached and argillized.
Commodities (Major) - Ag, Au; (Minor) - As, Bi, Hg, Sb
Development Status: None
Deposit Model: Polymetallic vein or hot-spring Ag-Au (Cox and Singer, 1986; model 22c, 25a)
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:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 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 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
Other Databases
| Link to USGS - Alaska: | HE038 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Chulitna-Broad Pass DomainDomain
- Peninsular TerraneVolcanic Arc
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