Mt. Bupto

Occurrence, Inactive

Commodities and mineralogy

Main commodities P
Other commodities U
Ore minerals phosphorite; unknown uranium-bearing mineral

Geographic location

Quadrangle map, 1:250,000-scale HW
Quadrangle map, 1:63,360-scale C-3
Latitude 68.53
Longitude -157.51
Nearby scientific data Find additional scientific data near this location
Location and accuracy Location plotted is locality 110 (sample 50ATr160) from original 1950 field notes and maps of Tailleur and cited in Patton and Matzko (1959, p. 12), in T11S, R24W; on north flank of Mt. Bupto about 0.5 mi (0.8 km) north of summit; located to within 1 mi (1.6 km).

Geologic setting

Geologic description

Phosphatic mudstone in dark-colored, dominantly calcareous rocks of the Carboniferous Lisburne Group, probably from a stratigraphic level correlative with the black chert and shale member of the Alapah Limestone. Nearby dolostone talus derived from Mt. Bupto has purple and green fluorite and coarsely crystalline calcite fracture coatings.
Geologic map unit (-157.512972254166, 68.5294804023076)
Mineral deposit model Lode; phosphorite
Mineral deposit model number 34c
Age of mineralization Carboniferous

Production and reserves

Workings or exploration Mudstone sample contained 13.7% P2O5 and .004% U (Patton and Matzko, 1959, p. 11).
Indication of production None

Additional comments

See MAS/MILS Sequence number 0020200005 (USBM, 1995).