Elkhorn

Occurrence in Jefferson county in Washington, United States with commodities Manganese, Iron
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 10055918
MRDS ID SP00129
Record type Site
Current site name Elkhorn
Alternate or previous names Karnes

Geographic coordinates

Geographic coordinates: -123.00124, 47.73813 (WGS84)

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Jupiter(quadrangle 1:24,000 scale)

Mount Olympus(quadrangle 1:100,000 scale)

Seattle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hood Canal(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Olympic 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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
026N 003W 13,24 Washington

Comments on the location information

  • ABOUT 3.5 MILES NORTHEAST OF THE MT JUPITER LOOKOUT. THE ELKHORN GROUP OF CLAIMS IS ON THE SOUTH SLOPE OF MOUNT CONSTANCE. THE CLAIMS ARE BOUNDED BY BULL ELK CREEK ON THE WEST, MINER'S CREEK ON THE EAST, AND THE DOSEWALLIPS RIVER ON THE SOUTH. THE PROPERTY IS REACHED FROM BRINNON ON US HIGHWAY 101 BY FOLLOWING THE ROAD ALONG THE DOSEWALLIPS RIVER WESTERLY FOR ABOUT 13 MILES. THE MAIN WORKINGS RANGE IN ELEVATION FROM 1200 TO 4200 FT.

Commodities

Commodity Importance
Manganese Critical Primary
Iron Primary

Materials information

Materials Type of material
Bementite Ore
Hematite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -123.00124, 47.73813

Economic information

Controls for ore emplacement

  • Basalt In The Mine Area Is Locally Highly Fractured And Cut By Many Faults. Manganese Deposits Of The Region Are Associated With Spilites (Park, 1942, P. 311-312) And Commonly Are Found With Reddish Pelagic Limestone Interbedded With The Basalt. Manganese Mineralization May Be Either Disseminated In Replacement Bodies Or Volcanogenic Exhalative/Diagenetic Bodies (Sorem And Gunn, 1967).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on development

  • ECON.COM: PRODUCED IN THE 1940'S (DATA FROM USGS, MRDS, 1990).

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE AREA IS UNDERLAIN BY BASALT LAVA FLOWS AND INTERCALATED TUFF AND RED ARGILLACEOUS LIMESTONE; MUCH OF THE BASALT IS ALTERED. PILLOW BASALT IS EXPOSED IN PLACES. THE BASALTIC FLOWS GENERALLY TREND NORTH AND STAND NEARLY VERITCAL; LOCALLY, THEY ARE GREATLY DEFORMED AND FRACTURED. THREE RED LIMESTONE BEDS AND INTERCALATED BASALTS FORM THREE OR MORE DISTINCT PARALLEL RIDGES EXTENDING FROM THE DOSEWALLIPS RIVER NORTHWARD TO THE TOP OF THE DIVIDE. THREE LIMESTONE INTERBEDS IN BASALT CONTAIN LENSES OF MANGANESE ORE, SOME AS MUCH AS 25 FT. THICK. THE CRESCENT FORMATION, WHICH HOSTS MANGANESE MINERALIZATION ON THE OLYMPIC PENNINSULA, CONSISTS OF PALEOCENE? AND EOCENE PILLOW BASALTS COMPOSITIONALLY SIMILAR TO OCEAN RIDGE BASALTS. ASSOCIATED PELAGIC LIMESTONES WERE DEPOSITED IN DEEP WATER (SNAVELY, 1987, P. 306-308). ; 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.