Iias Prospect

Occurrence in Kittitas county in Washington, United States with commodities Copper, Gold, Silver, Iron

Geologic information

Identification information

Deposit ID 10036902
MRDS ID M025869
Record type Site
Current site name Iias Prospect
Alternate or previous names Williams
Related records 10302110

Geographic coordinates

Geographic coordinates: -121.01035, 47.44843 (WGS84)
Elevation 1798
Location accuracy 1000(meters)
Relative position 24 MI FROM CLE ELUM BY ROAD; ABOUT 3.25 MI DUE EAST OF DAVIS PEAK, Estimated In Sw/4 Section
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Geographic areas

Country State County
United States Washington Kittitas

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 023N 015E 29 SW4 Washington

Comments on the location information

  • ON WEST SLOPE OF MT HAWKINS ON NORTH SIDE OF CAMP CREEK

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Iron Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Pyrrhotite Ore

Alteration

  • (Local) Host Rocks Are Altered

Analytical data

Result ASSAYS YIELD TR AU, 0.12 OZ/TON AG

Mineral occurrence model information

Model code 13
USGS model code 7a
Deposit model name Synorogenic-synvolcanic Ni-Cu
Mark3 model number 19

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Ingalls Tectonic Complex;
    Rock description Ingalls Tectonic Complex;

Nearby scientific data

(1) -121.01035, 47.44843

Ore body information

  • General form PODS

Controls for ore emplacement

  • Magmatic Segregation?

Comments on the geologic information

  • GEOLOGIC MAP SHOWS NO VOLCANIC ROCKS UNLESS METABASALTS OF INGALLS COMPLEX ARE IMPLIED. INGALLS COMPLEX IS AN ACCRETED OPHIOLITE

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest
Area name In Wenatchee National Forest

Ownership information

  • Type Owner
    Owner Riley Williams
    Home office Yakima, Wa.
    First year 1949

Workings at the site

  • Type of workings Surface/Underground
    Length 58.22M
    Overall depth 5.18M

Comments on the workings information

  • SHAFT, 3 ADITS, LARGE OPEN CUT

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M025869

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. 60.

  • Deposit

    FRIZZELL, V.A., JR., TABOR, R.W., BOOTH, D.B., ORT, K.M., AND WAITT, R.B., JR., 1984, PRELIMINARY GEOLOGIC MAP OF THE SNOQUALMIE PASS 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 84-693, SCALE 1:100,000.

General comments

Subject category Comment text
Deposit PODS OF SULFIDE OCCUR IN LENTICULAR SHEAR ZONES. A SILICIFIED ZONE (200 X 500 FT) IN ALTERED VOLCANIC ROCKS CONTAINS ONE 2 FT WIDE QUARTZ VEIN WITH NEGLIGIBLE MINERALIZATION

Reporter information

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