| Deposit ID | 10045635 |
|---|---|
| MRDS ID | M233420 |
| Record type | Site |
| Current site name | Toano Group |
| Alternate or previous names | O'Connell Mine |
| Geographic coordinates: | -114.55339, 41.79769 (WGS84) |
|---|---|
| Elevation | 1951 |
Political divisions (FIPS codes)
Elko(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Tijuana John Peak(quadrangle 1:24,000 scale)
Jackpot(quadrangle 1:100,000 scale)
Wells(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Salmon Falls(hydrologic unit)
Upper Snake(hydrologic accounting unit)
Upper Snake(hydrologic subregion)
Pacific Northwest(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 | Elko |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 045N | 065E | 12 | Nevada |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Iron | Primary |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Silt |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Chemical Sediment > Chert |
| (1) | -114.55339, 41.79769 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Granodiorite Stock With Assoc. Faults, Fractures |
| General form | TABULAR |
|---|---|
| Strike | NW |
| Dip | NE |
| Width | 22.86M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1912 |
| District name | Contact (48) |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M233420 |
SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BUL. 847-A.
HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR76-779.
SCHRADER, F.C. (1912) A RECONN. OF THE JARBIDGE, CONTACT, AND ELK MT. MINING DISTRICTS, ELKO CO., NEVADA: USGS BUL. 497.
| Subject category | Comment text |
|---|---|
| Deposit | 4 PARALLEL VEINS, APPARENTLY REPLACEMENTS OF DIKES WHICH ARE COMPLETELY ALTERED AND MINERALIZED. |
| Deposit | THE TOANO GROUP IS ALSO CALLED THE O'CONNELL MINE. THE DEPOSITS ARE ON THE SEDIMENTARY SIDE OF THE CONTACT AND OCCUR CHIEFLY IN A PARALLEL E-W RIDGE OF THE LIMESTONE. THEY ARE CONTAINED IN 4 VEINS OR LODES, WHICH STRIKE NW, ARE APPROXIMATELY PARALLEL, AND DIP STEEPLY TO NE AND INTO THE MOUNTAIN. THESE VEINS SEEM TO REPRESENT REPLACEMENTS OF PORPHYRY DIKES WHICH ARE MORE OR LESS COMPLETE ALTERED, REPLACED, AND MINERALIZED IN THE VICINITY OF THE WORKINGS. THEIR TRUE PORPHYRY-DIKE CHARACTER IS SHOWN IN THE LIMESTONE ON THE NW, AND THE GRANODIORITE TO THE SE. CLAIM NO.2 IS A LODE 75 FEET WIDE, COMPOSED PRINCIPALLY OF 40% SILICEOUS IRON ORE, AND CONTAINING AT THE MIDDLE A 20-INCH VEIN CONSISTING PRINCIPALLY OF COPPER OXIDE AND CARBONATES AVERAGING ABOUT 7% COPPER. (SCHRADER, 1912, P150). LOCATION ESTIMATED BASED ON SCHRADERS' DESCRIPTION. ; INFO.SRC : 1 PUB LIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1979 | Weimer, Becky S. | Nevada Bureau of Mines and Geology |
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.