Matt

Occurrence in Snohomish county in Washington, United States with commodities Copper, Molybdenum
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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10048588
MRDS ID MP00186
Record type Site
Current site name Matt

Geographic coordinates

Geographic coordinates: -121.41343, 47.94426 (WGS84)
Elevation 1463
Relative position ABOUT 3 MI SOUTH OF MONTE CRISTO; ABOUT 1 MI SOUTHEAST OF MINERAL CITY SITE

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 028N 011E 04 SW4 OF NW4 Washington

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Pyrrhotite Ore

Analytical data

Result DRILL CORE ASSAYED 0.01-0.27% CU, AND UP TO 0.027% MO

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Grotto Batholith
    Rock description Grotto Batholith
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Swauk Formation;Swauk Formation
    Rock description Swauk Formation;Swauk Formation

Nearby scientific data

(1) -121.41343, 47.94426

Economic information

Ore body information

  • General form DISSEMINATED

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Silver Creek District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Ownership information

  • Type Operator
    Owner Cities Service Co. (Circa
    Last year 1983

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 10000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.11 wt-pct Copper Major 1983

Comments on the reserve resource information

  • TOO LOW GRADE TO BE ECONOMIC

Comments on the workings information

  • DRILL CORE ONLY, TOTALING 2,132 FT

Reference information

Bibliographic references

  • Deposit

    JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULLOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACIER PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 36.

  • 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.

  • Reserve-Resource

    JOHNSON AND OTHERS, 1983

General comments

Subject category Comment text
Deposit THIS MAY BE PART OF THE SAME MINERALIZING SYSTEM AS AT SEACREST DEPOSIT WHICH IS LESS THAN 1 MI TO THE NORTHWEST
Deposit SEE ALSO MRDS RECORD MP00033

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1992 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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