Ethel

Past Producer in Snohomish county in Washington, United States with commodities Copper, Gold, Silver
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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10056098
MRDS ID SP00359
Record type Site
Current site name Ethel
Alternate or previous names Ethel Consolidated

Geographic coordinates

Geographic coordinates: -121.49649, 47.87092 (WGS84)

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Baring(quadrangle 1:24,000 scale)

Skykomish River(quadrangle 1:100,000 scale)

Wenatchee(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Skykomish(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Mt. Baker-Snoqualmie National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Snohomish

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 028N 010E 34,35 Washington

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Fluorite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Tonalite
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) -121.49649, 47.87092

Economic information

Geologic structures

Type of structure Regional
Structure description Rocks Of The Area Include Various Accreted (Melange) Terranes And Batholithic Rocks Representing Early Igneous Activity Of The Cascade Magmatic Arc.

Controls for ore emplacement

  • Ore Occurs In A Shear Zone That Ranges From A Few Inches To 27 Ft. Wide (Broughton, 1942, P. 15). Weaver (1912, P. 76) Describes The Mineralization As Irregularly Distributed In Lenses Accompanied By Considerable Amounts Of Crumbly Granite Resembling Arkose.

Comments on the geologic information

  • THE COUNTRY ROCK IS GRANODIORITE OF THE INDEX BATHOLITH (TABOR AND OTHERS, GEOL. MAP, P. 10) WHICH IS CUT BY NARROW DIKES OF GRANODIORITE PORPHYRY (WEAVER, 1912, P. 76).

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Index

Comments on the production information

  • ABOUT 400 TONS (HUNTTING, 1956, P. 83).

Reference information

Bibliographic references

  • Deposit

    BROUGHTON, W.A., 1942, INVENTORY OF MINERAL PROPERTIES IN SNOHOMISH COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 6, 64 P., 1 PL.

  • Deposit

    DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.

  • Deposit

    HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

  • Deposit

    TABOR, R.W.; FRIZZELL, V.A., JR.; BOOTH, D.B.; WHETTEN, J.T.; WAITT, R.B.; ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, 31 P., 1 PL.

  • Deposit

    WEAVER, C.E., 1912, GEOLOGY AND ORE DEPOSITS OF THE INDEX MINING DISTRICT: WASHINGTON GEOLOGICAL SURVEY BULLETIN 7, 96 P.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1993 Frank, Dave U.S. Geological Survey

Beyond USGS

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