| Deposit ID | 10095809 |
|---|---|
| MRDS ID | MP00237 |
| Record type | Site |
| Current site name | Black Dike Prospect |
| Geographic coordinates: | -121.42481, 47.65231 (WGS84) |
|---|---|
| Elevation | 610 |
| Location accuracy | 100(meters) |
| Relative position | ABOUT 1 MI NORTH OF FRANCIS LAKE |
Political divisions (FIPS codes)
King(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Grotto(quadrangle 1:24,000 scale)
Skykomish River(quadrangle 1:100,000 scale)
Wenatchee(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Skykomish(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 | King |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 025N | 011E | 20 | NEAR CENTER OF NW4 | Washington |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Magnetite | Ore |
| Pyrite | Ore |
| Sericite | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| Rock unit name | Snoqualmie Batholith | ||||
| Rock description | Snoqualmie Batholith | ||||
| |||||
| (1) | -121.42481, 47.65231 |
|---|
| Name | COPPER MINERALIZATION |
|---|---|
| General form | DISSEMINATED |
| Dip | } |
| Name | MAGNETITE ORE |
|---|---|
| General form | DISSEMINATED |
| Dip | } |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Lower West Fork Miller River Area |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | In Mt. Baker-Snoqualmie National Forest In A Cherry Stem Into Alpine Lakes Wilderness |
| Type | In-situ | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1975 | |||||||||||||||||||||
| Total resources | 113000mt ore | |||||||||||||||||||||
| ||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MP00237 |
GUALTIERI, J.L., THURBER, H.K., MILLER, M.S., MCMAHAN, A.B., AND FEDERSPIEL, 1975, MINERAL RESOURCES OF ADDITIONS TO THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 75-3, P. 89, 95
GUALTIERI AND OTHERS, 1975
| Subject category | Comment text |
|---|---|
| Deposit | AREA CUT BY NW AND NE TRENDING JOINTS. TWO TYPES OF DEPOSITS. MAGNETITE IS DISSEMINATED IN A CLIFF, IN BLEBS AND PODS ALONG JOINT FACES, AND AS VEINS TO 1 FT WIDE. COPPER MINERALIZATION IS FOUND IN A BRECCIA PIPE 25 X 60 X 40 FT. COPPER MINERALIZATION HAS BEEN TENTATIVELY GIVEN THE INFORMAL NAME OF A BRECCIA PIPE CU DEPOSIT, FOR WHICH THERE IS NO PUBLISHED MODEL. THE TYPE OF DEPOSIT FOR THE MAGNETITE MINERALIZATION IS UNKNOWN |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-92 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.