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Hancock Prospect

Occurrence in Snohomish county in Washington, United States with commodities Copper, Gold, Silver, Nickel, Cobalt
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10036930
MRDS ID M025902
Record type Site
Current site name Hancock Prospect
Related records 10131936

Geographic coordinates

Geographic coordinates: -121.43649, 47.95592 (WGS84)
Elevation 975
Location accuracy 1000(meters)
Relative position 0.5 MI NORTH OF MINERAL CITY SITE, Estimated In Se/4 Of Section 0.5 Mi North 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 029N 011E 31 Washington

Comments on the location information

  • UNSURVEYED. ON SILVER CREEK

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Nickel Critical Primary
Cobalt Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Host and associated rocks

  • 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) -121.43649, 47.95592
ListMap

Economic information

Ore body information

  • General form VEIN
    Thickness 0.91M

Comments on the geologic information

  • HOST ROCKS ARE BASED ON ESTIMATED LOCATION. LOCATION IS ALSO CLOSE TO TONALITE OF SILVER CREEK (MIO) AND TO ROCKS OF THE EASTERN MELANGE BELT (PRE-TERT). ELEMENT ASSEMBLAGE SUGGESTS THAT THE EASTERN MELANGE BELT IS LIKELY THE ACTUAL HOST ROCKS AND THAT THE DEPOSIT IS A MAGMATIC SEGREGATION

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

Workings at the site

  • Type of workings Underground
    Length 12.19M

Comments on the workings information

  • ADIT

Reference information

Bibliographic references

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 85.

  • 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.

General comments

Subject category Comment text
Deposit 15-30 FT WIDE VIEN WITH 1.5-3 FT OF ORE. THE TYPE OF DEPOSIT IS UNKNOWN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-85 Andrews, David H. (Lawson, William A.) U.S. Geological Survey
Updater 01-MAY-92 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