| Deposit ID | 10094798 |
|---|---|
| MRDS ID | DC09675 |
| Record type | Site |
| Current site name | Iridescent Claim |
| Geographic coordinates: | -112.05505, 46.66101 (WGS84) |
|---|---|
| Location accuracy | 250(meters) |
| Relative position | 2.8 KM SE OF THE SUMMIT OF SCRATCHGRAVEL HILL. |
Political divisions (FIPS codes)
Lewis and Clark(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Scratchgravel Hills(quadrangle 1:24,000 scale)
Elliston(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Missouri(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Lewis and Clark |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 011N | 004W | 36 | Montana |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Chrysocolla | Ore |
| Malachite | Ore |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
| Rock unit name | Scratchgravel Quartz Monzonite Stock | ||||||||
| Rock description | Scratchgravel Quartz Monzonite Stock | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| Rock unit name | Belt Series |
| Rock description | Belt Series |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -112.05505, 46.66101 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Boulder Batholith |
| Type of structure | Local |
| Structure description | Scratchgravel Quartz Monzonite Stock |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Scratchgravel Hills District |
|---|
| Type of workings | Surface |
|---|---|
| Overall length | 4.57M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC09675 |
USGS BULL 842, P. 55, PL. 3
| Subject category | Comment text |
|---|---|
| Deposit | THE SURROUNDING GRANITE IS TRAVERSED BY SHEAR AND JOINT PLANES COATED WITH THIN CRUSTS OF MALACHITE AND CHRYSOCOLLA. THESE CRUSTS PROBABLY DERIVED FROM THE OXIDATION OF CHALCOPYRITE OR OTHER SULPHIDES THAT OCCUR IN THE METAMORPHOSED SEDIMENTS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-74 | Unknown | U.S. Geological Survey | |
| Updater | 01-NOV-81 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.