Day Harbor Occurrence (ARDF - SR292), Seward Mining District, Kenai Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Day Harbor Occurrence (ARDF - SR292) | Occurrence |
| Seward Mining District | Mining District |
| Kenai Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
60° 1' 55'' North , 149° 8' 34'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Seward | 2,790 (2017) | 18.5km |
| Bear Creek | 1,956 (2017) | 20.3km |
| Primrose | 111 (2006) | 39.8km |
| Moose Pass | 219 (2014) | 52.2km |
Location: This occurrence is located at or just above tidewater about 3 miles southwest of the head of Day Harbor. It is near the center of section 5, T. 2 S., R. 2 E., of the Seward Meridian. This is location 96 of Cobb and Tysdal (1980) and location S-191 of Jansons and others (1984). This location is accurate to within half a mile.
Geology: The occurrence consists of a 4-foot-wide shear zone between a coarse-grained gabbro and a peridotite; the zone contains disseminated sulfide minerals consisting mostly of pyrrhotite and pyrite, with possibly a little chalcopyrite (Grant and Higgins, 1909). Bedrock in this area is part of the Resurrection Bay Ophiolite complex, which is part of the Valdez Group of Late Cretaceous age (Nelson and others, 1985). No other information reported in the literature.
Workings: There are no reported workings, improvements, or assay results.
Age: Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
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 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite ? | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | SR292 |
|---|
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