| Deposit ID | 10047804 |
|---|---|
| MRDS ID | M700088 |
| Record type | Site |
| Current site name | Silver Creek Prospect |
| Alternate or previous names | Davis Prospect, Ross, Claims: Weezie Nos. 1-11 |
| Geographic coordinates: | -121.13344, 48.97288 (WGS84) |
|---|---|
| Elevation | 884 |
| Location accuracy | 1000(meters) |
| Relative position | 2 MI SOUTH OF CANADA WEST OF ROSS LAKE; 1.5 MI WEST OF SKAGIT RIVER (ROSS LAKE); ABOUT 4.5 MI EAST OF SILVER LAKE, Estimated From Description And Map In Staatz And Others And From Description In Moen |
Political divisions (FIPS codes)
Whatcom(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Spickard(quadrangle 1:24,000 scale)
Mount Baker(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Skagit(hydrologic unit)
Puget Sound(hydrologic accounting unit)
Puget Sound(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
North Cascades National Park(National Park)
National Park NPS(Type of land area)
NPS(Federal land areas administered by NPS)
| Country | State | County |
|---|---|---|
| United States | Washington | Whatcom |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 040N | 013E | 05,08 | SE4 (05) OF NE4 (08) | Washington |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Molybdenum | Secondary |
| Gold | Secondary |
| Silver | Tertiary |
| Tungsten Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcopyrite | Ore |
| Covellite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Biotite | Gangue |
| Chlorite | Gangue |
| Epidote | Gangue |
| Kaolinite | Gangue |
| Orthoclase | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Result | CHIP SAMPLE AT FACE OF ADIT SHOWED NO AU, 0.40 OZ/TON AG, 1.50% CU, 0.15% MOLYBDENITE. IN OPEN CUT ORE IS ESTIMATED TO CARRY 1% MOLYBDENITE AND 2-3% CU. SEE STAATZ AND OTHERS (P. 56) FOR ADDITIONAL ANALYTICAL INFORMATION |
|---|
| Model code | 79 |
|---|---|
| USGS model code | 21a |
| Deposit model name | Porphyry Cu-Mo |
| Mark3 model number | 2 |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) | ||||||||
| Rock unit name | Volcanic Rocks Of Mount Rahm | ||||||||
| Rock description | Volcanic Rocks Of Mount Rahm | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Rock unit name | Chilliwack Composite Batholith, Tonalite And Granodiorite Of Perry Creek |
| Rock description | Chilliwack Composite Batholith, Tonalite And Granodiorite Of Perry Creek |
| (1) | -121.13344, 48.97288 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Some E-W Fracturing |
| General form | PODS, DISSEMINATED, VEINLETS |
|---|---|
| Thickness | 3.05M |
| Length | 73.15M |
| Width | 60.96M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1913 |
| Discoverer | L. Darrow And Others |
| Ownership category | National Park |
|---|---|
| Area name | In North Cascades National Park |
| Type | Operator |
|---|---|
| Owner | Inland Copper Ltd, Vancouver, B. C., Canada |
| First year | 1967 |
| Type of workings | Surface/Underground |
|---|---|
| Length | 25.91M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M700088 |
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 274.
HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 34.
MOEN, W.S., 1969, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 57, P. 76-77.
PURDY, C.P., JR., 1954, MOLYBDENUM OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY REPORT OF INVESTIGATIONS 18, P. 87-88.
GRANT, A.R., 1969, CHEMICAL AND PHYSICAL CONTROLS FOR BASE METAL DEPOSITION IN THE CASCADE RANGE OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 58, P. 67-69.
STAATZ, M.H., TABOR, R.W., WEIS, P.L., ROBERTSON, J.F., VAN NOY, R.M., AND PATTEE, E.C., 1972, GEOLOGY AND MINERAL RESOURCES OF THE NORTHERN PART OF THE NORTH CASCADES NATIONAL PARK, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1359, P. 55-57.
TABOR, R.W., HAUGERUD, R.A., BOOTH, D.B., AND BROWN, E.B., 199X, PRELIMINARY GEOLOGIC MAP OF THE MOUNT BAKER 30 X 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 9X-XXX, SCALE 1:100,000 (IN PREPARATION IN 1993).
| Subject category | Comment text |
|---|---|
| Deposit | MINERALIZED ZONE SOUTH OF MAIN DISSEMINATED MINERALIZATION CONTAINS 0.25-1 IN. QUARTZ STRINGERS WITH SCATTERED CHALCOPYRITE AND CLUSTERS OF MOLYBDENITE. STRIKE GIVEN IS FOR THESE STRINGERS. ORE PRESENT IN QUARTZ VEINS AND BRECCIA ZONE. LENGTH AND WIDTH GIVEN REPRESENT EXTENT OF EXPOSED DISSEMINATED MINERALIZATION |
| Deposit | MRDS RECORDS D000704, W017831 HAVE BEEN MERGED WITH THIS RECORD AND DELETED |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-81 | Caress, Mary E. (Evarts, Russ) | U.S. Geological Survey | |
| Updater | 01-APR-91 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.