J.C. Prospect, Ketchikan Gateway Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| J.C. Prospect | Prospect |
| Ketchikan Gateway Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
55° 29' 16'' North , 131° 36' 57'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ketchikan | 8,197 (2017) | 16.3km |
| Saxman | 417 (2017) | 18.9km |
| Metlakatla | 1,405 (2017) | 40.0km |
Location: This prospect is known only from U.S. Bureau of Mines (1977) claim records. Its approximate location is at an elevation of about 1700 feet west of the west edge of Lake Harriet Hunt. The site is in section 5, T. 74 S., R. 91 E., of the Copper River Meridian. It corresponds to loc. 46 in Elliott and others (1978). The location is probably accurate within about 0.2 mile.
Geology: The country rocks near this prospect are mainly flyschlike metasedimentary rocks, and subordinate andesitic and basaltic metavolcanic rocks that are intruded by Cretaceous stocks, sills, and dikes of feldspar-porphyritic granodiorite (Berg and others, 1988). The strata were regionally metamorphosed to greenschist-grade phyllite and semischist in Late Cretaceous time, and, near some of the granodiorite contacts, subsequently contact metamorphosed to hornblende hornfels (Brew, 1996, p. 27; Berg and others, 1988, p. 17). The premetamorphic age range of the strata is unknown. Berg and others (1988, p. 17) note that they closely resemble Upper Jurassic to mid-Cretaceous marine flysch and volcanic rocks nearby on Gravina Island. According to U.S. Bureau of Mines claim records (1977), this prospect, which appears to be in metapelite at or near a granodiorite contact, was staked for As, Au, and Fe. No other information about it has been made public.
Commodities (Major) - As, Au, Fe
Development Status: None
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | KC046 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander TerraneVolcanic Arc
- Taku DomainDomain
USA
- Alaska
- Ketchikan Mining DistrictMining District
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