Unnamed Occurrence (ARDF - SI146; northeast of Slocum Arm), Chichagof Mining District (Chicagof Mining District), Sitka, Alaska, USAi
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Latitude & Longitude (WGS84):
57° 29' 35'' North , 135° 42' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Tenakee Springs | 133 (2017) | 43.6km |
| Sitka | 8,863 (2017) | 54.1km |
Location: This occurrence is northeast of Slocum Arm at an elevation of about 1,500 feet, about 1.4 miles north-northeast of the outlet of lake 1052. The occurrence is 0.3 mile northwest of the center of sec. 36, T. 50 S., R. 60 E. It is location P-94 of Bittenbender and others (1999) and MAS no. 0021140221 (U.S. Bureau of Land Management, 2002). The location is accurate.
Geology: Johnson and Karl (1985) map the rocks in the area as Triassic(?) greenstone and Mesozoic or Paleozoic, siliceous metasedimentary and metavolcanic rocks. The rocks are intruded by a stock of Tertiary(?) granodiorite, and cut by high-angle faults that mainly strike northwest. Bittenbender and others (1999), citing Still and Weir (1981), describe this occurrence as a zone of orange-colored mineralized rock in a gulch along a fault contact between metamorphic rocks and greenstone. Samples of the mineralized material contained up to 12 parts per million (ppm) gold, 7 ppm silver, 3,400 ppm zinc, and 100 ppm molybdenum. The ore minerals are not specified.
Workings: Only surface sampling.
Alteration: Oxidation of mineralized rock.
Commodities (Major) - Ag, Au; (Minor) - Mo, Zn
Development Status: None
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
1 valid mineral.
Detailed Mineral List:
| ⓘ Sphalerite ? Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite ? | 2.CB.05a | ZnS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Sphalerite | ZnS |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | SI146 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainAccretionary Complex
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