1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Franklin

Prospect in Alaska, United States with commodity Tungsten
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308841
MRDS ID A015303
Record type Site
Current site name Franklin
Alternate or previous names Ptarmigan, Zimmerman

Geographic coordinates

Geographic coordinates: -147.37895, 64.98067 (WGS84)
Relative position The Franklin prospect is located in the SE1/4SE1/4 sec. 20, T. 2 N., R. 2 E., Fairbanks Meridian. This prospect is at the head of Gilmore Creek, about 0.4 mile west of the top of Gilmore Dome. The prospect is included in locality 32 of Cobb (1972 [MF 410]).

Site location context

Political divisions (FIPS codes)

Fairbanks North Star(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fairbanks D-1(quadrangle 1:63,360 scale)

Big Delta NW(quadrangle 1:100,000 scale)

Fairbanks(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Nearby scientific data

(1) -147.37895, 64.98067
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Surface trenches across the Franklin and Ptarmigan claims uncovered several mineralized zones approximately 15 to 20 feet wide that consist of quartz and silicates with scheelite (Chapin, 1919, p. 327). The lode strikes N. 40 E. and dips northwest. This prospect lies on the periphery of a Cretaceous granite and granodiorite that intrudes two units of the Fairbanks Schist that are composed of (1) quartz-muscovite schist, quartzite, and chlorite-quartz schist, and (2) amphibolite, magnetite-rich biotite schist, quartzose schist, and marble (Newberry and others, 1996).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the workings information

  • Workings / Exploration = Surface trenches across the Ptarmigan and Franklin claims uncovered several mineralized zones (Chapin, 1919, p. 327).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Chapin, 1919

General comments

Subject category Comment text
Deposit Model Name = W skarn deposit (Cox and Singer, 1986; model 14a)

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-2001 J.R. Guidetti Schaefer and C.J. Freeman Avalon Development Corporation

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.