| Deposit ID | 10048633 |
|---|---|
| MRDS ID | MP00234 |
| Record type | Site |
| Current site name | Index Gold |
| Alternate or previous names | Index Gold Mines, Inc., Index Silver Creek |
| Geographic coordinates: | -121.45232, 47.90564 (WGS84) |
|---|---|
| Elevation | 945 |
| Location accuracy | 1000(meters) |
| Relative position | ABOUT 1.5 MI SOUTHEAST OF MINERAL BUTTE, Estimated At Common Section Boundary |
Political divisions (FIPS codes)
Snohomish(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Monte Cristo(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 | Snohomish |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 028N | 011E | 18,19 | Washington |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Primary |
| Copper | Primary |
| Arsenic Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Sphalerite | Ore |
| Quartz | Gangue |
| Result | TYPICAL ASSAY SAID TO BE 5.4 OZ/TON AG, 6.4% PB, 2.5% ZN, 11.59% AS |
|---|
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Tonalite |
| Rock unit name | Index Batholith;Index Batholith |
| Rock description | Index Batholith;Index Batholith |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Rock unit name | Swauk Formation;Swauk Formation |
| Rock description | Swauk Formation;Swauk Formation |
| (1) | -121.45232, 47.90564 |
|---|
| General form | VEIN |
|---|---|
| Thickness | 0.46M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Silver Creek District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | In Snoqualmie National Forest |
| Type | Operator |
|---|---|
| Owner | Sunshine Valley Minerals, Inc. |
| First year | 1991 |
| Type | Owner |
|---|---|
| Owner | Henry Siepmann, Seattle |
| First year | 1942 |
| Type of workings | Underground |
|---|---|
| Length | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MP00234 |
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. 351.
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 160.
DERKEY, R.E., AND GULICK, C.W., 1992, WASHINGTON'S MINERAL INDUSTRY - 1991: WASHINGTON GEOLOGY, V. 20, NO. 1, P. 3-25.
HUNTTING, 1956
| Subject category | Comment text |
|---|---|
| Deposit | VEINS TREND ACROSS CONTACT OF INDEX BATHOLITH AND SWAUK FORMATION |
| 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.