Shamrock

Occurrence in Ferry county in Washington, United States with commodities Silver, Gold, Lead, Zinc, Copper, Nickel
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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10055896
MRDS ID SP00108
Record type Site
Current site name Shamrock
Alternate or previous names Iron Creek

Geographic coordinates

Geographic coordinates: -118.62723, 48.14595 (WGS84)

Site location context

Political divisions (FIPS codes)

Ferry(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Louie Creek(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 Ferry

Public Land Survey System information

Meridian Township Range Section Fraction State
030N;031N 033E;033E 2;26,27,34,35 Washington

Comments on the location information

  • 12.5 MILES NORTHEAST OF KELLER

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Primary
Zinc Critical Primary
Copper Primary
Nickel Critical Primary

Materials information

Materials Type of material
Galena Ore
Lead Ore
Malachite Ore
Limestone Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) Upper Paleozoic rocks, undivided

Economic information

Controls for ore emplacement

  • Mineralization Is In Silicified Limestone Block Surrounded By Granodiorite. Silver-Lead Ore (Vein) Is 8 In.-8 Ft. Wide And 700 Ft. Long. Nickel Occurs In A Mineralized Zone 100 Ft. Wide In Which There Is A High-Grade Ore Zone 55 Ft. Wide (Huntting, 1956, P. 277).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on development

  • ECON.COM: PRODUCED IN 1914 (50 TONS), IN 1922 (3500 OZ. AG), AND IN 1926 (HUNTTING, 1956, P. 277). TOTAL SILVER PRODUCTION AROUND 7000 OZ. (MEON, 1976, P. 102).

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GRANODIORITE (THE PALEOCENE TO EOCENE GRANODIORITE OF MANILA CREEK) INTRUDES CARBONATE ROCKS OF THE ORDOVICIAN? COVADA GROUP AT THE SHAMROCK MINE (HUNTTING, 1956, P. 277; JOSEPH, 1990, GEOL. MAP, P. 21). ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1991 Berger, Mary A. U.S. Geological Survey
Updater 01-AUG-1992 Frank, Dave U.S. Geological Survey

Beyond USGS

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

External references