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Frank Long

Prospect in Alaska, United States with commodities Silver, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10093959
MRDS ID A010572
Record type Site
Current site name Frank Long

Geographic coordinates

Geographic coordinates: -150.61253, 59.50948 (WGS84)
Relative position Pilgrim (1933) located this prospect directly across from Beautiful Island just above the high tide line in the West Arm of Nuka Bay, and 1.5 miles south of the entrance of Beauty Bay. Richter (1970) could not find any signs of this prospect and its location is uncertain.

Site location context

Political divisions (FIPS codes)

Kenai Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seldovia C-2(quadrangle 1:63,360 scale)

Seldovia NE(quadrangle 1:100,000 scale)

Seldovia(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Resurrection River-Frontal Resurrection Bay(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Port Graham Corporation(ANCSA Village)

ANCSA Village UND(Type of land area)

UND(Federal land areas administered by UND)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Gold Ore
Quartz Gangue

Alteration

  • (Local) None reported, although Borden and others (1991) report other veins in the Nuka Bay district show carbonization, sulfidization, sericitization, and silicification of the wall rock adjacent to the veins.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Valdez Group
    Rock description Valdez Group;Valdez Group

Nearby scientific data

(1) -150.61253, 59.50948
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The quartz vein at this prospect is hosted in Cretaceous Valdez Group graywacke (Richter, 1970). The vein varies from six to 24 inches in width; it strikes S45E and dips nearly vertical. The vein consists of white quartz and arsenopyrite with considerable graywacke fragments. The vein was drifted along strike for 88 feet. A sample of quartz and arsenopyrite taken from the ore stockpile assayed 0.38 ounces of gold and 0.30 ounces of silver per ton (Pilgrim, 1933).
  • Age = Tertiary; Boden and others (1991) report other veins in the district are about 55 m.y. old.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Homer

Comments on the production information

  • Production Notes = None reported.

Comments on the workings information

  • Workings / Exploration = The vein was drifted along strike for 88 feet. A sample of quartz and arsenopyrite taken from the ore stockpile assayed 0.38 ounces of gold and 0.30 ounces of silver per ton (Pilgrim, 1933).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Richter, 1970; Pilgrim,1933

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide, Au-quartz vein (Cox and Singer, 1986; model 36a)
Deposit Other Comments = This property is often combined with the Skinner property. The site is difficult to locate.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-MAR-99 Jeff A. Huber 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.