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

Craigie Creek

Occurrence in Alaska, United States with commodities Tungsten, Copper, Molybdenum
Map
XML
JSON
KML
C

Geologic information

Identification information

Deposit ID 10009642
MRDS ID D002731
Record type Site
Current site name Craigie Creek

Geographic coordinates

Geographic coordinates: -149.38269, 61.78955 (WGS84)
Relative position Occurrence located along the length of Craigie Creek. Locality 70, 71, and 72 of Cobb (1972).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tungsten Primary
Copper Secondary
Molybdenum Secondary

Materials information

Materials Type of material
Magnetite Ore
Molybdenite Ore
Pyrite Ore
Scheelite Ore
Zircon Ore

Nearby scientific data

(1) -149.38269, 61.78955
ListMap

Comments on the geologic information

  • Geologic Description = Jasper (1967) reported the bedrock of the area to be quartz diorite and likewise, the float in the creek is quartz diorite. Pan concentrates in stream gravel contained up to 90 percent magnetite, 1 percent pyrite, up to 10% zircon, and locally up to 15 percent scheelite. ? Bedrock in the vicinity is the Willow Creek Pluton, a zoned pluton: the outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
  • Age = Willow Creek Pluton is Late Cretaceous.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the workings information

  • Workings / Exploration = Assays of pan concentrates yield up to 130 ppm Cu and up to 5 ppm Mo (Jasper, 1967).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS D002731
USGS Alaska Resource Data File ARDF AN019

Bibliographic references

  • Deposit

    Jasper, M.W., 1967, Geochemical investigations along the Valdez to Chitina Highway, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geochemical Report 15, 33 p.

  • Deposit

    Cobb, E.H., 1975, Tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resource Map MR-66, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.

Comments on the references

  • Primary Reference = Jasper, 1967

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff U.S. Geological Survey
Reporter 30-JUL-1998 S.W. Huss U.S. Geological Survey