Jean E group (Black Bear Mine; Black Bear Nos. 1 & 2; Orosco Manganese prospect), Coyote Mining District, Coyote Mountains, Pima County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 1' 44'' North , 111° 35' 49'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ali Chukson | 132 (2011) | 23.0km |
| Three Points | 5,581 (2011) | 27.2km |
| Sells | 2,495 (2011) | 29.8km |
| Topawa | 299 (2011) | 32.2km |
| South Komelik | 111 (2011) | 37.9km |
Ref.: Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 115-116.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 116 (Table 4).
Nowlan, G.A., Haxel, G.B., Hanna, W.F., Pitkin, J.A., Diveley-White, D.V., McDonnell, J.R., Jr., and Lundby, W. (1989) Mineral resources of the Baboquivari Peak and Coyote Mountains Wilderness Study Areas, Pima County, Arizona, Chapter E, in Mineral resources of Wilderness Study Areas: Southwestern and south-central Arizona: U.S. Geological Survey Bulletin 1702-E, p. E1-E30.
Bell, J.E., U.S. Bureau of Mines Report file No. 464.2/300.
Crittenden, Max D., U.S. Bureau of Mines File No. 463.3.
USGS San Vicente Quadrangle topo map.
MRDS database Dep. ID file #10039688, MRDS ID #M050655; and, Dep. ID #10137753, MAS ID #0040190013; and, Dep. ID #10234993, MAS ID #0040190261.
A former small surface and underground Mn-Cu-Zn mine located in the SW ¼ sec. 13, T.16S., R.7E., 2½ miles northwest of the Indian hamlet of Pantak, NW of the Coyote Mountains. Discovered by A.M. Herreras in 1938. First produced 1954, until 1956 (?). Owned by the Drake Mining Co.
Mineralization is numerous fractures containing narrow, discontinuous, irregular, high-grade veinlets of hard manganese oxides, with some soft wad in between, along a wide fault zone cutting Tertiary rhyolitic volcanics. Copper-zinc mineralization is in the fracture zone to the North of the manganese outcrops. Ore has a low Fe content. Probably sizeable pods of manganese ore were mined from the intersection of the N80E fault and the NW fracture zone. The ore body is 121.92 meters long and strikes N50-60W, dipping steeply NE.
Local structures include a NW-trending fracture zone.
Workings to a depth of 12.19 meters and 33.53 meters long overall, 9.14 meters wide overall, include mostly open cuts and pits; a few shafts are found. Some 100 tons of ore were concentrated to 17.5 long tons of 43.5% Mn, in a jig plant at Tucson, were produced in 1954-1955 and trucked to the Deming, NM purchasing depot.
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Other Databases
| Link to USGS MRDS: | 10039688 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
USA
- Arizona
- ⭔Tohono O'odham ReservationReservation
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