Black Hawk group (Blue Devil Nos. 1 & 2; Black Eagle Nos. 1 & 2; Black Hawk Nos. 1-3), Coyote Mining District, Coyote Mountains, Pima County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 1' 48'' North , 111° 36' 11'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ali Chukson | 132 (2011) | 22.6km |
| Three Points | 5,581 (2011) | 27.7km |
| Sells | 2,495 (2011) | 29.3km |
| Topawa | 299 (2011) | 31.9km |
| South Komelik | 111 (2011) | 37.8km |
Ref.: Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 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.
MRDS database Dep. ID file #10039687, MRDS ID #M050654; and, Dep. ID #10234423, MAS ID #0040190012.
A former small surface Mn mine located in the SE ¼ sec. 14, T.16S., R.7E., about 2.¾ miles NW of the Indian hamlet of Pantak; N-NW of the Coyote Mountains. Discovered 1940 by Mr. George M. Evans and associates. First produced 1955. Owned by the Drake Mining Co.
Mineralization is discontinuous, irregular, narrow stringers of hard manganese oxides on fractures, and soft wad between fractures, along a fault zone cutting Tertiary rhyolitic volcanics. The ore body is 137.16 meters long and 91.44 meters wide, strikes N50-60W and dips vertically to steep NE.
Probably on the same fracture zone as the Jean E group. Two parallel fracture zones 300 feet apart, containing discontinuous, narrow stringers of hard manganese oxides in most fracture planes, which show gradual replacement outward from the walls and incomplete replacement of softer wad manganese in shattered areas between fractures.
The fracture zone probably extends to the east where it is covered by alluvium; similarity of minerals and the trend of fractures suggest that the Black Hawk and the Jean E are on the same fracture zone.
Local structures incude a NW-trending fracture zone.
Workings include at least 15 pits and cuts; a few pits were 10 to 18 feet deep. Some 46 long tons of sorted 20% Mn ore were shipped in 1955 and was trucked to the Deming purchasing depot.
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| Link to USGS MRDS: | 10039687 |
|---|
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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