Log In
Unnamed Occurrence (ARDF - MH154; west of head of North Fork Rainy Creek), Delta River Mining District, Southeast Fairbanks Census Area, Alaska, USAi
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
63° 20' 57'' North , 145° 56' 49'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of 4,700 feet west of the head of North Fork Rainy Creek. It is in the SW1/4SW1/4 section 13, T. 18 S., R. 9 E., Fairbanks Meridian. It corresponds to locality 17 of Rose (1965) and to locality S59 in table 2 of Nokleberg and others (1991).
Geology: At this occurrence, chalcopyrite and secondary copper minerals are in a shear zone that strikes N70E (Rose, 1965). The mineralized zone is about 6.5 feet wide by 10 feet long and is hosted in pyrite-altered dacite porphyry that intrudes the Slana Spur Formation of Pennsylvanian age (Nokleberg and others, 1991).
Age: Late Paleozoic or younger.
Alteration: Pyritization of dacite host rock; oxidation of copper minerals.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Porphyry Cu (Cox and Singer, 1986; model 17).
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.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | 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 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | MH154 |
|---|
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
