| Deposit ID | 10069277 |
|---|---|
| MRDS ID | W002863 |
| Record type | Site |
| Current site name | Yellow Band Shafer Group |
| Alternate or previous names | Shafer Group, Argenta |
| Geographic coordinates: | -112.90506, 45.3349 (WGS84) |
|---|---|
| Elevation | 2192 |
| Relative position | 20 MILES NW OF DILLON |
Political divisions (FIPS codes)
Beaverhead(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Ermont(quadrangle 1:24,000 scale)
Dillon(quadrangle 1:100,000 scale)
Dillon(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Beaverhead(hydrologic unit)
Missouri Headwaters(hydrologic accounting unit)
Missouri Headwaters(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Beaverhead-Deerlodge National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Beaverhead |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 006S | 011W | 11,01,02 | Montana |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Primary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Cinnabar | Ore |
| Gold | Ore |
| Stibnite | Ore |
| Tetrahedrite | Ore |
| Calcite | Gangue |
| Quartz | Gangue |
| Model code | 72 |
|---|---|
| USGS model code | 19a |
| Deposit model name | Polymetallic replacement |
| Mark3 model number | 47 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Carbonate > Dolomite | ||
| Rock unit name | Jefferson;Three Forks | ||
| Rock description | Jefferson;Three Forks | ||
| |||
| (1) | -112.90506, 45.3349 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Kelly Thrust Trends Ne And Dips 45 W. Area Of Tear Faults, Overturning And Tight Folds |
| General form | LENSES |
|---|---|
| Thickness | 1.22M |
| Length | 60.96M |
| Width | 15.24M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | Yes |
| Discovery year | 1934 |
| Discoverer | Ernest Shafer & Floyd Mc Clennan |
| Year of first production | 1934 |
| District name | Argenta District |
|---|
| Ownership category | National Forest |
|---|
| Type | Operator |
|---|---|
| Owner | John Shafer And Assoc. |
| Home office | Dillon, Mt |
| Type | Owner |
|---|---|
| Owner | John Shafer And Assoc. |
| Home office | Dillon, Mt |
| Year | 1965 |
|---|---|
| Period | 1935-1965 |
| Material | Zn |
| Ore mined | 3865.06mt |
| Accuracy | Accurate |
| Year | 1965 |
|---|---|
| Period | 1935-1965 |
| Material | Zn |
| Ore mined | 1171.62mt |
| Year | 1965 |
|---|---|
| Period | 1935-1965 |
| Material | Cu |
| Ore mined | 4871.58mt |
| Accuracy | Accurate |
| Year | 1965 |
|---|---|
| Period | 1935-1965 |
| Material | Au |
| Ore mined | 505680.39g |
| Accuracy | Accurate |
| Year | 1965 |
|---|---|
| Period | 1935-1965 |
| Material | Ag |
| Ore mined | 2410986.32g |
| Accuracy | Accurate |
| Type | In-situ |
|---|---|
| Estimate year | 1991 |
| Probable | 334000mt ore |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002863 | |
| USGS | Mineral Resources Data System | MRDS | W002863 | FROM Yellow Band Group |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300010128 | FROM Yellow Band Group |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300010241 | FROM Cross Mine |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300010384 | FROM Discovery Mine |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300010434 | FROM Pine Tree Mine |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300010431 |
GEACH, R.D., 1972, MINES & MINERAL DEPOSITS, BEAVERHEAD CO., MONTANA BUREAU OF MINES & GEOLOGY BULL. 85.
MBMG BULL 92.
1972 COMPILE M.B.M.G., GEACH, R.D., BULL. 85
1972 COMPILE M.B.M.G., GEACH, R.D., BULL. 85, SIZE & DIRECTIONAL DATA
GEACH, R.D., 1972, MONTANA BUREAU OF MINES & GEOLOGY BULL. 85
| Subject category | Comment text |
|---|---|
| Deposit | QUARTZ VEINS ARE THE STRONGEST AND MOST NUMEROUS. A SMALL AMOUNT OF ORE HAS COME FROM THE QUARTZ CHALCEDONY VEINS. |
| Deposit | ORE ROCK IS RECRYSTALLIZED TO THE EXTENT THAT THE ORIGINAL CHARACTER IS UNRECOGNIZABLE. ; INFO.SRC : 1 PUB LIT |
| Deposit | BOAZ GOLD-QUARTZ SHOOT IS PRINCIPAL PRODUCER. ORE BODIES ARE LENSES PARALLEL TO THE DOLOMITE BEDDING AND ARE LOCALIZED ALONG CRESTS OF SMALL DOMAL OR ANTICLINAL STRUCTURES |
| Deposit | ALL LENSES ARE CUT BY TEAR FAULTS WHICH MAY HAVE INFLUENCED ORE DEPOSITION. ; INFO.SRC : 1 PUB LIT |
| Deposit | Merged data from Deposit ID 10293562 (Yellow Band Group) Merged data from Deposit ID 10124176 (Cross Mine) Merged data from Deposit ID 10148271 (Discovery Mine) Merged data from Deposit ID 10220481 (Pine Tree Mine) Merged data from Deposit ID 10147974 (Park Mine) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1975 | Mlynarczyk, Meg S. | U.S. Geological Survey | |
| Updater | 01-JUL-1980 | Loen, Jeffrey S. (Pearson, Robert C.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.