| Deposit ID | 10047832 |
|---|---|
| MRDS ID | M700156 |
| Record type | Site |
| Current site name | Black Jack Prospect |
| Alternate or previous names | Silver Star |
| Related records | 10056092 |
| Geographic coordinates: | -122.2009, 45.77203 (WGS84) |
|---|---|
| Elevation | 536 |
| Relative position | 5 MI SOUTHWEST OF LOOKOUT MTN, 12 MI SOUTHEAST OF YACOLT; ABOUT 7 MI SOUTH OF GUMBOOT MOUNTAIN |
Political divisions (FIPS codes)
Skamania(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Gumboot Mountain(quadrangle 1:24,000 scale)
Vancouver(quadrangle 1:100,000 scale)
Vancouver(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lewis(hydrologic unit)
Lower Columbia(hydrologic accounting unit)
Lower Columbia(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Gifford Pinchot National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Washington | Skamania |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 003N | 005E | 04 | SE4 OF NW4 | Washington |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Gold | Primary |
| Molybdenum | Tertiary |
| Zinc Critical | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Magnetite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Tourmaline | Gangue |
| Result | COPPER CONTENT RANGES FROM 0.28-2.92%. A 3.3 FT CHIP SAMPLE FROM THE ADIT CONTAINS 2.92% CU, TR AU, AG. TWO SAMPLES FROM ADITS 2 AND 3 AVERAGED ONLY 0.30% CU. |
|---|
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| Rock unit name | Silver Star Pluton, Quartz Diorite Porphyry Phase | ||
| Rock description | Silver Star Pluton, Quartz Diorite Porphyry Phase | ||
| |||
| (1) | Tertiary granitic rocks |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Breccia Pipe |
| General form | BRECCIA ZONE |
|---|---|
| Strike | NNW |
| Dip | VERT |
| Thickness | 15.24M |
| Length | 91.44M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1897 |
| District name | Washougal District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | In Gifford Pinchot National Forest |
| Type | Operator |
|---|---|
| Owner | Plexus Resources Corp. |
| First year | 1991 |
| Type | Owner |
|---|---|
| Owner | Lawrence Mccuistion And Family |
| First year | 1990 |
| Type | In-situ | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1990 | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 99.06M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M700156 |
MOEN, W.S., 1977, ST. HELENS AND WASHOUGAL MINING DISTRICTS OF THE SOUTHERN CASCADES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 60, P. 43, 46-48.
DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 336.
ASHLEY, R.P., AND PETERSON, J.A., 1991, FIELD EXAM WITH PLEXUS RESOURCES CORP.
PLEXUS RESOURCES CORP., 1990, ANNUAL REPORT
PHILLIPS, W.M., 1987, GEOLOGIC MAP OF THE VANCOUVER QUADRANGLE, WASHINGTON AND OREGON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 87-10, SCALE 1:100,000.
DERKEY, R.E., AND GULICK, C.W., 1992, WASHINGTON'S MINERAL INDUSTRY - 1991: WASHINGTON GEOLOGY, V. 20, NO. 1, P. 3-25.
| Subject category | Comment text |
|---|---|
| Deposit | DEPOSIT HAS BEEN GIVEN THE INFORMAL NAME OF A BRECCIA PIPE CU DEPOSIT, FOR WHICH THERE IS NO PUBLISHED MODEL. IN ADIT 1, PYRITE AND MINOR CHALCOPYRITE OCCUR AS SMALL PODS ALONG FRACTURE ZONES; PYRITE IS ALSO DISSEMINATED IN THE WALL ROCK. IN ADITS 2 AND 3, PYRITE IS DISSEMINATED IN THE WALL ROCK AND THE FRACTURE ZONES ARE BARREN. |
| Deposit | 16 UNPATENTED CLAIMS. LOCATION MAP AND SKETCH MAP OF MINE WORKINGS IN MOEN (1977). ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Deposit | SEE ALSO MRDS RECORD M700180 |
| Deposit | Discovery Year: LATE 1890'S |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1981 | Caress, Mary E. (Evarts, Russ) | U.S. Geological Survey | |
| Updater | 01-SEP-1991 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.