Quartz Creek

Past Producer in King county in Washington, United States with commodities Copper, Molybdenum, Gold, Silver, Tungsten, Arsenic, Uranium
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. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10008481
MRDS ID D000663
Record type Site
Current site name Quartz Creek
Alternate or previous names Rainy, Western States Copper
Related records 10055930

Geographic coordinates

Geographic coordinates: -121.55564, 47.57037 (WGS84)
Elevation 549
Relative position 18 MI BY ROAD FROM NORTH BEND; ABOUT 1.3 MI SOUTH-SOUTHEAST OF HONEY LAKE ON QUARTZ CREEK

Site location context

Political divisions (FIPS codes)

King(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lake Philippa(quadrangle 1:24,000 scale)

Skykomish River(quadrangle 1:100,000 scale)

Wenatchee(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Snoqualmie(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 King

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 024N 010E 16,09 NW4 (16); SW4 (09) Washington

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary
Gold Primary
Silver Primary
Tungsten Critical Tertiary
Arsenic Critical Tertiary
Uranium Tertiary

Comments on the commodity information

  • COMMODITY DISTRIBUTION IS ZONED. SLIGHT RADIOACTIVITY RECORDED AT ONE LOCATION. PB ISOTOPE DATA IS AVAILABLE IN CHURCH AND OTHERS

Materials information

Materials Type of material
Bornite Ore
Brannerite Ore
Chalcopyrite Ore
Covellite Ore
Molybdenite Ore
Pyrite Ore
Pyrrhotite Ore
Scheelite Ore
Biotite Gangue
Chlorite Gangue
Magnetite Gangue
Plagioclase Gangue
Quartz Gangue
Sericite Gangue
Tourmaline Gangue

Alteration

  • (Local) Potassic, Propylitic, Silica Flooding

Analytical data

Result 2 SAMPLES ASSAYED 0.6, 1.2% CU
Result 0.2, 0.4 OZ/TON AG, TR, 0.04 OZ/TON AU

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Tonalite
    Rock unit name Snoqualmie Batholith, Northern Phase;Snoqualmie Batholith, Northern Phase
    Rock description Snoqualmie Batholith, Northern Phase;Snoqualmie Batholith, Northern Phase

Nearby scientific data

(1) -121.55564, 47.57037

Economic information

Geologic structures

Type of structure Local
Structure description Strong E-W Sheeting

Ore body information

  • General form BRECCIA PIPE, STOCKWORK
    Length 182.88M
    Width 91.44M
    Depth to top 0M

Comments on the geologic information

  • GRANT (1969) REFERS TO HOST ROCKS AS QUARTZ CREEK STOCK OF THE SNOQUALMIE BATHOLITH. DEPOSIT IS NEAR WEST-CENTRAL CONTACT OF SNOQUALMIE BATHOLITH. CALLIGAN FORMATION AND MOUNT GARFIELD VOLCANICS IN GRANT ARE PROBABLY EQUIVALENTS OF WESTERN MELANGE BELT AND UNNAMED VOLCANIC ROCKS OF TABOR AND OTHERS, RESPECTIVELY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1942, 1953-1955

Mining district

District name Taylor River, Snoqualmie District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Ownership information

  • Type Owner
    Owner Inland Copper, Ltd. (-
    Last year 1990

Comments on the production information

  • SMALL PRODUCTION BETWEEN 1951 AND 1957. ONE LOAD OF CONCENTRATES REPORTEDLY SHIPPED IN 1952

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 5000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.5 wt-pct Copper Major 1976

Comments on the reserve resource information

  • INDICATED RESERVES ARE ESTIMATED AT 56,000 TONS AT 5.5% CU, 2.5 OZ/TON AG; 905,000 TONS AT 1.1% CU (DERKEY, 1990).
  • CONSERVATIVE ESTIMATES ARE GIVEN

Workings at the site

  • Type of workings Underground
    Length 51.82M
    Overall depth 32.31M

Comments on the workings information

  • 3 ADITS, WINZE, SHAFT

Comments on development

  • DEPOSIT HAS BEEN DRILLED SEVERAL TIMES SINCE 1957.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT HAS BEEN GIVEN THE INFORMAL NAME OF A BRECCIA PIPE CU DEPOSIT, FOR WHICH THERE IS NO PUBLISHED MODEL. TWO ELIPTICAL MINERALIZED BRECCIA PIPES, DIMENSIONS ARE FOR EAST PIPE. A LOW-GRADE PORPHYRY SYSTEM MAY BE PRESENT AT DEPTH
Deposit MRDS RECORD W017919 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1974 King, Robert U. U.S. Geological Survey
Updater 01-APR-1991 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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