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Iron Dike Prospect

Occurrence in Okanogan county in Washington, United States with commodities Zinc, Copper, Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10041680
MRDS ID M056847
Record type Site
Current site name Iron Dike Prospect
Related records 10232249

Geographic coordinates

Geographic coordinates: -118.9192, 48.3879 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Strawberry Mountain(quadrangle 1:24,000 scale)

Nespelem(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sanpoil(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 033N 031E 04 Washington

Commodities

Commodity Importance
Zinc Critical Primary
Copper Secondary
Gold Tertiary
Silver Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Calcite Gangue
Epidote Gangue
Quartz Gangue

Alteration

  • (Local) Dike Altered To Dark Brown, Soft And Crumbly, Iron Oxide-Rich Rock.

Analytical data

Result RICHER SAMPLE-6% ZN, .05% CU, TRACE AU AVG. 3.2% ZN, .3% CU, TRACE AU & A

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro

Nearby scientific data

(1) -118.9192, 48.3879
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Dikes Trend North To Northeast

Ore body information

  • General form MINERALIZED DIKE WITH BANDS & DISSEMINATED ORE
    Length 482790M
    Width 16.76M

Controls for ore emplacement

  • Gabbro-Like Dike

Comments on the geologic information

  • DIKE COULD BE MORE THAN A MILE IN LENGTH. 400 FT TO THE EAST OF THE DIKE SOME SMALL PITS EXPOSE A SIMILAR ROCK THAT APPEARS TO BE A PARALLEL DIKE SEPARATED FROM THE MAIN DIKE BY ARGILLITE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Workings at the site

  • Type of workings Surface/Underground
    Length 28.96M

Comments on the workings information

  • 75 FT CROSSCUT TUNNEL, A 20 FT CROSSCUT TUNNEL, AND A FEW PITS.

Comments on development

  • 2 SHORT CROSSCUT TUNNELS AND A FEW PITS.TUNNELS AND PITS. EXPLORATION IN 1971-72.

Reference information

Bibliographic references

  • Deposit

    WASH. DMG BULL. 37, PART II, P. 365

General comments

Subject category Comment text
Deposit THE WHOLE IS IMPREGNATED WITH GRAINS OF ZINC BLENDE, PYRITE, PYRRHOTITE, AND CHALCOPYRITE. IN PART THE SULFIDES ARE AGGREGATED AS FLAKES AND THIN FILMS IN MINUTE FRACTURES THAT TRAVERSE THE ROCK IN VARIOUS DIRECTIONS. LOCALLY THEY ARE CONCENTRATED IN BANDS AS MUCH AS 1/4 IN. IN WIDTH. SOME BANDS ARE FORMED ALMOST EXCLUSIVELY OF ZINC BLENDE. OTHERS CONTAIN CHIEFLY THE IRON SULFIDES AND CHALCOPYRITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Greene, Robert U.S. Geological Survey
Updater 01-DEC-1982 Lawson, William A. (Evarts, Russell C.) U.S. Geological Survey

Beyond USGS

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

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