| Deposit ID | 10088899 |
|---|---|
| MRDS ID | M800405 |
| Record type | Site |
| Current site name | Midnight Mine |
| Alternate or previous names | Keating Mine |
| Related records | 10304453 |
| Geographic coordinates: | -109.30787, 33.07232 (WGS84) |
|---|---|
| Elevation | 1219 |
| Relative position | 2.0 MILES NORTH OF CLIFTON ON WEST SIDE OF SAN FRANCISCO RIVER |
Political divisions (FIPS codes)
Greenlee(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Clifton(quadrangle 1:24,000 scale)
Clifton(quadrangle 1:100,000 scale)
Clifton(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
San Francisco(hydrologic unit)
Upper Gila(hydrologic accounting unit)
Upper Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Arizona | Greenlee |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 004S | 029E | 24 | SE OF NE | Arizona |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Primary |
| Lead | Secondary |
| Silver | Secondary |
| Manganese Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Lead | Ore |
| Sphalerite | Ore |
| Epidote | Gangue |
| Garnet | Gangue |
| Limonite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| Rock unit name | Morenci Granite Porphyry | ||||
| Rock description | Morenci Granite Porphyry | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Modoc Limestone;Morenci Shale;Longfellow Limestone |
| Rock description | Modoc Limestone;Morenci Shale;Longfellow Limestone |
| (1) | -109.30787, 33.07232 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Ne Trending Faults; Intrusive Igneous Dikes Associated With Morenci Porphyry Stock |
| Type of structure | Local |
| Structure description | Porphyry Dikes Cutting Sedimentary Sequences |
| General form | FLAT TABULAR |
|---|---|
| Strike | NE |
| Dip | 20 NW |
| Thickness | 60.96M |
| Length | 182.88M |
| Depth to bottom | 60.96M |
| General form | FLAT TABULAR |
|---|---|
| Dip | 20 NW |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1903 |
| Discoverer | Anwell Lafaves |
| Year of first production | 1910 |
| Year of last production | 1942 |
| District name | Copper Mountain District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Harriet Sweeting |
| Home office | Box 1225, Clifton, Az |
| First year | 1960 |
| Type of workings | Surface/Underground |
|---|---|
| Length | 283.46M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M800405 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0040110137 |
ABGMT-USBM FILE DATA
ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA
BLM DISTRICT SHEET 842
ARIZ BUR MINES BULL 137, P. 187
BENNETT, K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 153 P.
ARIZ BUR MINES BULL 145, NO 12, P 75-77
| Subject category | Comment text |
|---|---|
| Deposit | ONE PATENTED LODE CLAIM; CONTINOUS MINERALIZED LAYERS PENETRATE HANGING AND FOOT WALLS TO FORM IRREGULAR BODIES; DIMENSION OF DEPOSIT WERE ESTIMATED FROM SURFACE CUTS |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1981 | Calder, Susan R. | Arizona Bureau of Geology and Mineral Technology |
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.