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Elkhead Mine

Past Producer in Douglas county in Oregon, United States with commodity Mercury
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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. Mining district
  16. Land status
  17. Ownership information
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10042792
MRDS ID M060823
Record type Site
Current site name Elkhead Mine
Related records 10249556

Geographic coordinates

Geographic coordinates: -123.17061, 43.55898 (WGS84)
Elevation 274
Relative position 6 1/2 MILES ESE FROM YONCALLA, OREGON.

Site location context

Political divisions (FIPS codes)

Douglas(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Scotts Valley(quadrangle 1:24,000 scale)

Cottage Grove(quadrangle 1:100,000 scale)

Roseburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Umpqua(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Oregon Douglas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 023S 004W 21 NE OF NE OF NE Oregon

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Metacinnabar Ore
Chalcedony Gangue
Limonite Gangue
Siderite Gangue

Alteration

  • (Local) Host Rocks Are Bleached And Softened, Cut By Chalcedony-Sederite-Limonite Veinlets And Locally Silicified

Analytical data

Result ORE GENERALLY LOW GRADE, CONTAINS LESS THAN 5 POUNDS MERCURY PER TON

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Umpqua
    Rock description Umpqua

Nearby scientific data

(1) -123.17061, 43.55898
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description East Limb Of Ne Trending Red Hill Anticline

Ore body information

  • General form IRREGULAR
    Strike NE
    Dip 75 DEG SE
    Thickness 9.14M
    Length 335.28M
    Width 60.96M
    Depth to top 0M
    Depth to bottom 45.72M

Controls for ore emplacement

  • Broad Fracture Zone Along Fault Contact Between Tuffaceous Sandstone And Basalt

Comments on the geologic information

  • ASSOCIATED TERTIARY GABBRO-NORITE DIKES AND SILLS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1870
Year of first production 1882
Year of last production 1971
Production years 1882 , 1887 - 1889 , 1916 - 1919 , 1931 - 1935 , 1957

Mining district

District name Elkhead-Black Butte

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Alcona Mining Co.
  • Type Owner
    Owner Holly, William J. (Alcona Mining Co.)

Comments on the production information

  • MINE YIELDED $30,000 WORTH OF ORE BEFORE 1903; 50 FLASKS PRODUCED IN 1887. SOME UNRECORDED PRODUCTION IN 1919; 16 FLASKS PRODUCED IN 1934-1935; 5 FLASKS IN 1957 AND 464 IN 1965-1971. TOTAL RECORDED PRODUCTION IS 551 FLASKS

Reserves and resources

  • Type In-situ
    Estimate year 1959
    Total resources 263000mt ore
    Commodity Subtype Grade units Group Importance Year
    Mercury Hg 0.0025 wt-pct Mercury Major 1959

Workings at the site

  • Type of workings Unknown
    Length 548.64M
    Overall depth 45.72M
    Overall length 121.92M
    Overall width 45.72M

Comments on the workings information

  • MOST OF THE OUTPUT WAS FROM LOW GRADE ORE MINED BY OPEN PIT. YIELDED $30,000 WORTH OF ORE BEFORE 1903; 50 FL IN 1887. SOME OUTPUT IN 1919; 16 FL IN 1934-1935; 5 FL IN 1957; AND 464 FL IN 1965-1971. TOTAL OUTPUT RECORDED WAS 551 FL.

Reference information

Bibliographic references

  • Deposit

    BROOKS, H.C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. GEOL AND MIN. IND. BULL. 55, P. 41-43.

  • Deposit

    WELLS, F.G., AND WATERS, A.C., 1934, QUICKSILVER DEPOSITS OF SOUTHWESTERN OREGON: USGS BULL. 850, P. 34-35

  • Deposit

    SCHUETTE, C. N., 1938, QUICKSILVER IN OREGON: ODGMI BULL. 4, P. 145

  • Deposit

    ERICKSON, E. G. AND SAMPLE, R. D., 1959, FINAL REPORT, CONTRACT IDM-E1216, MONETA PORCUPINE MINES, LIMITED, ELKHEAD MINE: OFFICE OF MINERALS EXPLORATION UNPUBLISHED REPORT

  • Deposit

    5) BAILEY, E. H

  • Deposit

    1930 GEOLMAP WELLS, F.G. AND WATERS, A.C., USGS BULL. 85

  • Production

    BROOKS

  • Reserve-Resource

    ERICKSON AND SAMPLE

General comments

Subject category Comment text
Deposit RECORD ( M055180 ) MERGED WITH THIS RECORD AND DELETED FROM OREGON FILE.
Deposit SPARINGLY AND IRREGULAR DISSEMINATED CINNABAR

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1973 Puffett, Willard P. U.S. Geological Survey
Updater 01-MAR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

External references

Maps centered on this site