| Deposit ID | 10060266 |
|---|---|
| MRDS ID | TC10265 |
| Record type | Site |
| Current site name | Mag Group |
| Alternate or previous names | Mag Claims |
| Geographic coordinates: | -114.43164, 35.04669 (WGS84) |
|---|---|
| Relative position | ABOUT 3 MILES NW OF OATMAN IN WESTERN ARIZONA. |
Political divisions (FIPS codes)
Mohave(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Oatman(quadrangle 1:24,000 scale)
Davis Dam(quadrangle 1:100,000 scale)
Kingman(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Havasu-Mohave Lakes(hydrologic unit)
Lower Colorado(hydrologic accounting unit)
Lower Colorado(hydrologic subregion)
Lower Colorado(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management AZ)
Bureau of Land Management AZ BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Arizona | Mohave |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 019N | 020W | 08 | Arizona |
| Commodity | Importance |
|---|---|
| Magnesite | Primary |
| Materials | Type of material |
|---|---|
| Brucite | Ore |
| Magnesite | Ore |
| Serpentine | Ore |
| Calcite | Gangue |
| Dolomite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Trachyte | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock |
| (1) | Middle Miocene to Oligocene granitic rocks |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1943 |
| District name | Oatman Mining District |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | TC10265 |
ERICKSEN, G.E., 1969, "BRUCITE AND MAGNESITE", IN ABM BULLETIN 180, USGS BULLETIN 871, P. 320-324.
PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERALS CARD FILE.
PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.
CIMRI
| Subject category | Comment text |
|---|---|
| Deposit | THE BRUCITE DEPOSITS ARE LAYERS AS MUCH AS 30 FT THICK RESTING ON THE ALCYONE TRACHYTE, THE OLDEST UNIT OF THE MID-UPPER TERTIARY VOLCANIC ROCK SEQUENCE. THE DEPOSITS ARE GENERALLY OVERLAIN BY OATMAN ANDESITE BUT AT SEVERAL PLACES THE BRUCITE LAYERS APPEAR TO BE WITHIN THE ANDESITE. SOME LAYERS AS MUCH AS 4-5 FT THICK BUT MOSTLY THINLY LAMINATED MATERIAL OF ALTERNATING BANDS OF CONTRASTING SHADES OF GREEN, GRAY, YELLOW, AND WHITE. FRESH BRUCITE RANGES FROM SERPENTINE GREEN TO LIGHT GRAY TO ALMOST WHITE. THE BRUCITE IS CRYPTOCRYSTALLINE AND DENSE WITH SUBCONCHOIDAL FRACTURE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1991 | Carbonaro, Marguerite M. | U.S. Geological Survey | |
| Updater | 01-DEC-1992 | Orris, Greta J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.