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  3. Mineral Resource Data System (MRDS)

Green Hornet

Prospect in Alaska, United States with commodity Uranium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10308608
Record type Site
Current site name Green Hornet

Geographic coordinates

Geographic coordinates: -131.78078, 55.38774 (WGS84)
Relative position This prospect is known only from U.S. Bureau of Mines (1977) claim records. Its approximate location is on northern Gravina Island at an elevation of about 250 feet, 0.3 mile southwest of triangulation point 'Sim' on Tongass Narrows. The site is at the intersection of sections 5, 6, 7, and 8, T. 75 S., R. 90 E., of the Copper River Meridian. It corresponds to loc. 57 in Elliott and others (1978). The location is probably accurate within about 0.2 mile.

Site location context

Political divisions (FIPS codes)

Ketchikan Gateway(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ketchikan B-6(quadrangle 1:63,360 scale)

Ketchikan SW(quadrangle 1:100,000 scale)

Ketchikan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ketchikan(hydrologic unit)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Uranium Primary

Nearby scientific data

(1) -131.78078, 55.38774
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks on northern Gravina Island are chiefly Upper Jurassic to mid-Cretaceous andesitic and basaltic volcanic rocks that gradationally intertongue with flyschlike sedimentary rocks. The rocks are intruded by at least one pluglike body of Tertiary gabbro (Berg, 1973; Berg and others, 1988). The bedded rocks were regionally metamorphosed to low-greenschist grade in Late Cretaceous time, and subsequently contact metamorphosed to hornblende hornfels near the contact of the Tertiary gabbro. The country rocks are cut by a high-angle fault along Tongass Narrows that displays about 4 miles of right-lateral offset. According to U.S. Bureau of Mines claim records (1977), this prospect, which appears to be in hornfelsed Jurassic or Cretaceous strata near the contact of a Tertiary gabbro plug, reportedly was staked for uranium, or for other radioactive minerals. No other information about it has been made public.
  • Age = Tertiary

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Mining district

District name Ketchikan

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = U.S. Bureau of Mines, 1977; Berg, 1973

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1999 H.C. Berg U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.