1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Mashel River Prospect

Occurrence in Pierce county in Washington, United States with commodities Mercury, Silver, Arsenic, Antimony
Map
XML
JSON
KML
B
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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10042383
MRDS ID M060149
MAS/MILS ID 530530162
Record type Site
Current site name Mashel River Prospect
Alternate or previous names Mashel River

Geographic coordinates

Geographic coordinates: -122.09972, 46.86667 (WGS84)
Elevation 713
Location accuracy 500(meters)
Relative position 16 MI SOUTHEAST OF KAPOWSIN; 16 MI FROM RAILROAD AT EATONVILLE; ABOUT 10 MI NORTH-NORTHWEST OF ASHFORD, Estimated Within Quarter Quarter Section Near Center On Mashel River

Site location context

Political divisions (FIPS codes)

Pierce(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ashford(quadrangle 1:24,000 scale)

Centralia(quadrangle 1:100,000 scale)

Hoquiam(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nisqually(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Washington Pierce

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 016N 006E 18 SE4 OF SW4 Washington

Comments on the location information

  • PROPERTY IS DEEDED LAND

Commodities

Commodity Importance
Mercury Primary
Silver Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Comments on the commodity information

  • FOUR DIAMOND DRILL HOLES FAILED TO FIND ECONOMIC QUANTITIES OF CINNABAR BENEATH OUTCROP.

Materials information

Materials Type of material
Cinnabar Ore
Orpiment Ore
Realgar Ore
Stibnite Ore
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Andesite Adjacent To Quartz Vein Is Bleached And Locally Contains Abundant Fine-Grained Pyrite

Analytical data

Result CHIP SAMPLES YIELDED AS MUCH AS 7% HG
Result CHANNEL SAMPLES CONTAINED AS MUCH AS 0.6% HG

Mineral occurrence model information

Model code 151
USGS model code 25d
Deposit model name Epithermal vein, Sado
Mark3 model number 28

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) -122.09972, 46.86667
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ne Trending Quartz Vein

Ore body information

  • General form VEIN, TABULAR MASSES
    Thickness 30.48M
    Length 804.65M
    Width 30.48M
    Depth to top 0M

Controls for ore emplacement

  • Fractures

Economic information about the deposit and operations

Operation type Underground
Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner St. Paul and Tacoma Lumber Co.
    Year 1965
  • Type Operator
    Owner B And J Properties
    First year 1973
  • Type Owner
    Owner Champion International
    First year 1994

Comments on the production information

  • NO PRODUCTION DATA

Comments on the workings information

  • SEVERAL SHORT ADITS

Comments on development

  • OWNER INFORMATION FROM R.P. ASHLEY, ORAL COMMUN., 1994 - NOT FOUND IN REFERENCES. DIAMOND DRILLING PROVED THE OUTCROPPING QUARTZ VEIN AT DEPTH IS ZONE OF SILICIFIED ANDESITE THAT CONTAINS ONLY SPARSE CINNABAR. REALGAR AND ORPIMENT ARE ABUNDANT IN UNSILICIFIED PARTS OF ANDESITE WHERE CUT BY DRILL HOLES.

Reference information

Bibliographic references

  • Deposit

    DANIELS, JOSEPH, 1914, THE COAL FIELDS OF PIERCE COUNTY: WASHINGTON GEOLOGICAL SURVEY BULLETIN 10, 146 P.

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 266.

  • Deposit

    U.S. BUREAU OF MINES, 1965, MERCURY IN WASHINGTON, IN MERCURY POTENTIAL OF THE UNITED STATES: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8252, P. 365.

General comments

Subject category Comment text
Deposit HUNTTING GIVES ORE BODY DIMENSIONS AS 100 X 100 X 20 FT; UNCLEAR WHERE PUFFETT'S DATA CAME FROM. CINNABAR OCCURS AS THIN FILMS ON FRACTURE SURFACES AND AS ENCRUSTATIONS ON NODULAR QUARTZ THAT LINES OPENINGS.
Deposit MRDS RECORD M054862 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Reporter information

Type Date Name Affiliation Comment
Reporter 1973-09-01 Puffett, Willard P. U.S. Geological Survey
Updater 1994-03-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1993-09-03 Ridenour, James U.S. Bureau of Mines MAS 0530530162 = newMRDS 10301656
Editor 2012-11-30 Wilson, Anna B. U.S. Geological Survey merged and deleted duplicate record 10301656

Beyond USGS

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

Maps centered on this site