South-side Prospect, Chichagof Mining District (Chicagof Mining District), Hoonah-Angoon Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| South-side Prospect | Prospect |
| Chichagof Mining District (Chicagof Mining District) | Mining District |
| Hoonah-Angoon Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
57° 50' 38'' North , 136° 11' 27'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
200095
Long-form identifier:
mindat:1:2:200095:7
GUID (UUID V4):
8c370af2-11ae-4150-ad9d-9c40685c67e0
The prospect is in West Chichagof-Yakobi Wilderness.
Location: The South-side prospect is at an elevation of about 2,000 feet on the southwest flank of Mine Mountain on northwest Chichagof Island. The prospect is 0.5 mile north-northwest of the center of sec. 33, T. 46 S., R. 57 E. It is location 13 of Cobb (1972, 1978). The location is accurate within about 0.5 mile.
Geology: Johnson and Karl (1985) describe the rocks in the area of this prospect as Mesozoic or Paleozoic, siliceous metasedimentary and metavolcanic rocks that are intruded by an elongate stock of Cretaceous or Tertiary, quartz diorite and tonalite. The prospect is at the contact between the metamorphic and intrusive rocks. The rocks are cut by high-angle faults of diverse, but mainly northwest, strike; the most prominent is the Border Ranges Fault, a regional-scale, northwest-striking, steeply-dipping fault whose trace is about 3 miles southwest of the prospect. Cobb (1972, 1978), citing Buddington (1925), describes the prospect as a 20-inch-thick quartz vein that carries free gold. The vein is exposed for 300 feet and a tunnel reportedly was driven 8 to 10 feet along it The host rock is not described and there are no assay data, but the crushed vein reportedly panned well. 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).
Workings: A tunnel 8- to 10-feet long reportedly was driven.
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: | SI031 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainDomain
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.
References
