Chichagof Star Prospect, Chichagof Mining District (Chicagof Mining District), Sitka, Alaska, USAi
| Regional Level Types | |
|---|---|
| Chichagof Star Prospect | Prospect |
| Chichagof Mining District (Chicagof Mining District) | Mining District |
| Sitka | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
57° 35' 36'' North , 135° 57' 7'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
196893
Long-form identifier:
mindat:1:2:196893:7
GUID (UUID V4):
0321d6c1-6fe0-4ba5-a0a9-4898eee6982e
The prospect is in West Chichagof-Yakobi Wilderness.
Location: The Chichagof Star prospect is at an elevation of about 100 feet on an unnamed creek that enters Ford Arm just northeast of Elf Cove. The prospect is about 0.7 mile southeast of the northwest corner of sec. 28, T. 49 S., R. 59 E. It is location P-86 of Bittenbender and others, (1999) and MAS no. 0021140046 (U.S. Bureau of Land Management, 2002). The location is accurate within 0.5 mile.
Geology: Johnson and Karl (1985) map the rocks in the area of this prospect as Cretaceous melange and as the Freeburn assemblage, a collage of kilometer-scale, fault-bounded, lozenge-shaped blocks of Cretaceous and Cretaceous(?) metasedimentary and metavolcanic rocks. The rocks are cut by numerous steeply-dipping, mainly northwest-striking faults; these include the extensions of the faults at the Hirst (SI087) and Chichagof (SI093) mines, which control the mineralization there. Bittenbender and others (1999), citing Still and Weir (1981), describe the prospect as an auriferous quartz vein in graywacke. Isotopic studies indicate that the gold-quartz veins in coastal southern and southeastern Alaska are Eocene, about 50 Ma in age (Haeussler, 1995; Goldfarb, 1997; Goldfarb and others, 1997).
Age: Isotopic studies indicate that the gold-quartz veins in coastal southern and southeastern Alaska are Eocene, about 50 Ma in age (Haeussler and others, 1995; Goldfarb, 1997; Goldfarb and others, 1997).
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).
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 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| 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 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | SI122 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainDomain
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References
