Forget-Me-Not Prospect, Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Forget-Me-Not Prospect | Prospect |
| Chistochina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 39' 42'' North , 144° 2' 20'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Chitina | 126 (2017) | 26.7km |
This prospect is within the Wrangell-St. Elias National Park.
Location: This prospect is on the east side of the upper valley of the Middle Fork Copper Creek (Val Alstine and Black, 1946, plate 30); it is at an elevation of about 4,700 feet in the SW1/4 section 30, T. 2 S., R. 8 E., of the Copper River Meridian. This prospect is approximately located, probably to within one-quarter mile. It is included in locality 72 of Cobb and Matson (1972) and locality 58 of Winkler and others (1981[OFR 80-892-B]).
Geology: An open cut in Triassic Nikolai Greenstone exposed an irregular fractured zone that contains dessiminated pyrite and some bornite (Moffit and Mertie, 1923; Van Alstine and Black, 1946). Malachite coats fractures in the zone. The copper mineralization is believed to be related to the regional mineralizing event that produced the rich Kennecott copper deposits in the McCarthy quadrangle (MacKevett and others, 1997).
Workings: This prospect was explored with at least one open cut (Van Alstine and Black, 1946).
Age: The copper mineralization is believed to be related to the mineralizing event that produced the rich Kennecott copper deposits in the McCarthy quadrangle to the east (MacKevett and others, 1997). This event is interpreted to have accompanied Late Jurassic or Early Cretaceous deformation and metamorphism (MacKevett and others, 1997, p. 88).
Commodities (Major) - Cu
Development Status: None
Deposit Model: Veins, disseminations, and fracture fillings in greenstone; probably related to
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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
Other Databases
| Link to USGS - Alaska: | VA037 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
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