| Deposit ID | 10044098 |
|---|---|
| MRDS ID | M231432 |
| Record type | Site |
| Current site name | Bullion-Monarch Open Pit Mine |
| Alternate or previous names | NBMG Sample Site 132 |
| Geographic coordinates: | -116.34287, 40.92434 (WGS84) |
|---|---|
| Elevation | 1807 |
| Relative position | ABOUT ONE MILE NW OF MAIN CARLIN MINE. |
Political divisions (FIPS codes)
Eureka(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Rodeo Creek NE(quadrangle 1:24,000 scale)
Battle Mountain(quadrangle 1:100,000 scale)
Winnemucca(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Humboldt(hydrologic unit)
Humboldt(hydrologic accounting unit)
Black Rock Desert-Humboldt(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management NV)
Bureau of Land Management NV BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Nevada | Eureka |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 035N | 050E | 10 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Quartz | Gangue |
| Result | SAMPLE 132 FROM N END OF PIT ALONG UNMINERALIZED NSOW STRUCTURE (ALTERED) CONTAINS 5% FE, 0.5% MG, 1% CA, 0.3% TI, 300 PPM MN, 1.5 PPM AG, 1500 PPM AS, 300 PPM B, 700 PPM BA, 1 PPM BE, 10 PPM CO, 200 PPM CR, 100 PPM CU, 50 PPM LA, 100 PPM NI, 70 PPM PB, 200 PPM SB, 10 PPM SC, 150 PPM SR, 300 PPM V. 30 PPM Y, 700 PPM ZN, 150 PPM ZR. |
|---|
| Model code | 172 |
|---|---|
| USGS model code | 26a |
| Deposit model name | Carbonate-hosted Au-Ag |
| Mark3 model number | 15 |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock |
| Rock unit name | Roberts Mountain |
| Rock description | Roberts Mountain |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -116.34287, 40.92434 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Lynn Window Of Roberts Mountain Thrust |
| Type of structure | Local |
| Structure description | Sheep Creek Fault |
| Strike | N50W |
|---|---|
| Dip | STEEPLY NE |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Lynn District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Type | Owner |
|---|---|
| Owner | Universal Gas, Inc. (Montana) |
| Home office | 1070 Silver St, Elko, Nv 89801 |
| First year | 1982 |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1987 | ||||||||||||||
| Total resources | 453000mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M231432 |
USBM (WINNEMUCCA) MILS NO. 307, REFERENCE NO. 3201100214
EVANS, J. G. (1972) GEOLOGICMAP OF RODEO CREEK NE QUADRANGLE, USGS MAP MF-325
BENTZ, BROOKS AND MACFARLANE, 5-27-1982, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.
BONHAM, H.F., 1986, NBMG MAP 91.
BONHAM, H.F., 1988, IN NBMG MI-1987.
NBMG, 1994, MI-1993
BONHAM, 1988. NBMG MI-1993
| Subject category | Comment text |
|---|---|
| Deposit | MOST OF THE GOLD OCCURS IN A ZONE AT THE BASE OF THE PIT WHERE 2 OR MORE N-TRENDING FAULTS INTERSECT. THIS ZONE CURVES TO THE WEST IN THE BASE OF THE PIT AND IS TRUNCATED AT ITS N END BY A CROSS-CUTTING STRUCTURE WHICH IS APPARENTLY UNMINERALIZED. DEPOSIT IS TIGHTLY STRUCTURALLY CONTROLLED. GOLD OCCURS IN THE FAULT GOUGE ASSOCIATED WITH MG, AS, AND SILICIFICATION AND JASPEROID DEVELOPMENT. MINERALIZING FLUIDS ARE THOUGHT TO BE POST-FAULTING, HAVING TRAVELED ALONG PRE-EXISTING FRACTURE SYSTEM. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-OCT-1980 | Kirkham, Richard A. | Nevada Bureau of Mines and Geology | |
| Updater | 01-SEP-1988 | La Pointe, D. D. | Nevada Bureau of Mines and Geology | |
| Updater | 01-SEP-1994 | Li, Zhiping (Moyer, Lorre A.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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