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Doris Prospect

Occurrence in Snohomish county in Washington, United States with commodities Copper, Silver, Zinc, Tungsten
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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. Mineral occurrence model information
  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 10095655
MRDS ID M060139
Record type Site
Current site name Doris Prospect
Alternate or previous names Blackman, Brown
Related records 10180010

Geographic coordinates

Geographic coordinates: -121.49454, 47.95064 (WGS84)
Elevation 1021
Location accuracy 250(meters)
Relative position 11 MI NORTH-NORTHEAST OF INDEX; ABOUT 1.4 MI WEST OF SHEEP GAP, Estimated From Map In Carithers And Guard. Location Is Probably Accurate Within Claim Area

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Monte Cristo(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 029N 010E 34,35 E2 (34); W2 (35) Washington

Comments on the location information

  • ON EAST SLOPE OF RED MOUNTAIN

Commodities

Commodity Importance
Copper Primary
Silver Tertiary
Zinc Critical Tertiary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Chrysocolla Ore
Malachite Ore
Scheelite Ore
Sphalerite Ore
Pyrite Unknown

Analytical data

Result 10% CU, 3 OZ/TON AG.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Index Batholith
    Rock description Index Batholith
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Eastern Melange Belt;Eastern Melange Belt
    Rock description Eastern Melange Belt;Eastern Melange Belt

Nearby scientific data

(1) -121.49454, 47.95064
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Wnw Trending Fractures.

Ore body information

  • General form VEIN
    Strike N 80 W
    Dip 85 N
    Thickness 1.22M
    Length 80.77M
    Depth to top 0M
    Depth to bottom 30.48M

Controls for ore emplacement

  • Near-Vertical Fractures

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1895

Mining district

District name Sultan District

Land status

Ownership category National Forest
Area name Partly Within Snoqualmie National Forest

Ownership information

  • Type Owner
    Owner Norman Chapman

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Inferred 34000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 33.882 g/mt Silver Trace 1976
    Copper Cu 3.92 wt-pct Copper Major 1976

Workings at the site

  • Type of workings Underground
    Length 137.16M
    Overall depth 91.44M

Comments on the workings information

  • 265-FT DRIFT WITH 30-FT WINZE; 180-FT CROSSCUT.

Comments on development

  • ACCESS TO PROPERTY DIFFICULT BECAUSE OF STEEP TOPOGRAPHY

Reference information

Bibliographic references

  • Deposit

    CARITHERS, WARD, AND GUARD, A.K. 1945, GEOLOGY AND ORE DEPOSITS OF THE SULTANS BASIN, SNOHOMISH COUNTY, WASHINGTON: WASH. DIV. MINES AND GEOL. BULL. 36, P. 60-62

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION MINES AND GEOLOGY BULL. 37, V. 1, P.82

  • Deposit

    GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 39.

  • Deposit

    TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND 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, SCALE 1:100,000.

  • Deposit

    1943 GEOLMAP WASHINGTON DIV. MINES AND GEOLOG

General comments

Subject category Comment text
Deposit HIGH GRADE ORE SHOOT IN NORTHWEST TRENDING FAULT. MINERALIZED FAULT ZONE. OTHER ATTITUDES GIVEN FOR DEPOSIT IS N34E, 70NE
Deposit SMALL PODS OF RICH CHALCOPYRITE ORE BUT NO EVIDENCE THAT A MINABLE ORE BODY EXISTS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-73 Puffett, Willard P. U.S. Geological Survey
Updater 01-DEC-91 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site