| Deposit ID | 10036785 |
|---|---|
| MRDS ID | M025696 |
| Record type | Site |
| Current site name | Big Four Prospect |
| Related records | 10205011 |
| Geographic coordinates: | -121.53454, 48.04981 (WGS84) |
|---|---|
| Elevation | 1402 |
| Location accuracy | 1000(meters) |
| Relative position | ABOUT 0.8 MI NORTH-NORTHEAST OF COPPER LAKE, Estimated In North Central Part Of Quarter Section Based On Map In Broughton |
Political divisions (FIPS codes)
Snohomish(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Silverton(quadrangle 1:24,000 scale)
Sauk River(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Stillaguamish(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)
| Country | State | County |
|---|---|---|
| United States | Washington | Snohomish |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 030N | 010E | 33 | NW4 | Washington |
| Commodity | Importance |
|---|---|
| Lead | Primary |
| Silver | Primary |
| Arsenic Critical | Tertiary |
| Antimony Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Tetrahedrite | Ore |
| Result | $50/TON |
|---|
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Syenite |
| Rock unit name | Eastern Melange Belt |
| Rock description | Eastern Melange Belt |
| (1) | -121.53454, 48.04981 |
|---|
| General form | VEIN |
|---|---|
| Thickness | 0.76M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Silverton District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | In Mount Baker National Forest |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M025696 |
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 233.
BROUGHTON, W.A., 1942, INVENTORY OF MINERAL PROPERTIES IN SNOHOMICH COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 6, P. 41.
PRUDY, C.P., JR., 1951, ANTIMONY OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 39, P. 168.
GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 38.
TABOR, R.W., BOOTH, D.B., VANCE, J.A., FORD, A.B., AND ORT, M.H., 1988, PRELIMINARY GEOLOGIC MAP OF THE SAUK RIVER 30 BY 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-692, SCALE 1:100,000.
| Subject category | Comment text |
|---|---|
| Deposit | SEDIMENTARY ROCKS ARE MAIN HOST TO ORE BUT DIKES ARE ALSO MINERALIZED |
| Deposit | MRDS RECORD D001705 HAS BEEN MERGED WITH THIS RECORD AND DELETED |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-85 | Andrews, David H. (Lawson, William A.) | U.S. Geological Survey | |
| Updater | 01-FEB-91 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.