Limestone and sparse dolomite, siltstone, and sandstone (NVPPAc;0)

State	Nevada
Name	Limestone and sparse dolomite, siltstone, and sandstone
Geologic age	Mississippian to Early Permian
Original map label	PPc
Comments	TAGGED AS PPC IN DIGITAL COVERAGE. The Tippipah Limestone in southern Nye County (may also be mapped as the Bird Spring Formation) is 3,600 feet thick (Cornwall, 1972). The Pakoon Limestone has been mapped as the upper part of the Callville Formation by some geologists; the Bluepoint Limestone is included in the basal part of the Calville. Measured and estimated thicknesses for the Bird Spring Limestone range from 2,500 to 7,000 feet (Longwell and others, 1965), though Tschanz and Pampeyan report that the Bird Spring Formation in the Mormon Mountains in Lincoln County may be no thicker than 1,000 feet; elsewhere in Lincoln County, Pennsylvanian rocks measure up to 3,500 feet. The thickness of the Ely and Riepe Spring Limestones range from 1,500 to 2,950 (Hose and Blake, 1976). Coats, 1987, includes the Hogan Formation within the Ely Limestone.
Primary rock type	limestone
Secondary rock type	sandstone
Other rock types	siltstone; chert; shale; dolostone (dolomite); conglomerate
Lithologic constituents	Major Sedimentary > Carbonate > Limestone (Bed)Includes pebbly and silty limestone interbeds in the Tippipah Limestone (Cornwall, 1972), dolomitic limestone in the Callville Limestone (Longwell and others, 1965), sandy, shaly, and cherty limestone in the Bird Spring Formation of Lincoln County (Tschanz and Pampeyan, 1970), silty to dolomitized limestone in the Ely-Riepe Spring Limestones (Hose and Blake, 1976) as well as bioclastic, argilliceous, and conglomeratic limestone in the Ely of Elko County (Coats, 1987). Minor Sedimentary > Clastic > Sandstone (Bed) Incidental Sedimentary > Clastic > Siltstone (Bed)Common in the Ely Limestone. Sedimentary > Clastic > Conglomerate (Bed)Limited to chert-pebble conglomerate mapped in the upper part of the Ely Limestone in White Pine County (Hose and Blake, 1976) and conglomerate present in the lower 600 feet of the Ely in Elko County (Coats, 1987). Sedimentary > Carbonate > Dolostone (Bed) Sedimentary > Clastic > Mudstone > Shale (Bed)Limited to Callville and Bird Spring Limestones in Clark County and to the Hogan Formation in Elko County. Sedimentary > Chemical > Chert (Lense)Found in the Bird Spring, Callville, Ely and Riepe Spring Limestones.
Map references	Stewart, J.H., and Carlson, J.E., 1978, Geologic Map of Nevada: U.S. Geological Survey and Nevada Bureau of Mines and Geology, 1:500,000 (not part of any formal series, printed and distributed by the U.S. Geological Survey, G75163, reprinted, 1981, G81386).
Unit references	Stewart, J.H., and Carlson, J.E., 1978, Geologic Map of Nevada: U.S. Geological Survey and Nevada Bureau of Mines and Geology, 1:500,000 (not part of any formal series, printed and distributed by the U.S. Geological Survey, G75163, reprinted, 1981, G81386). Stewart, J. H., 1980, Geology of Nevada: A discussion to accompany the Geologic Map of Nevada: Nevada Bureau of Mines and Geology Special Publication 4. Longwell, C.R., Pampeyaan, E.H., Bowyer, B., and Roberts, R.J., 1965, Geology and Mineral Deposits of Clark County, Nevada: Nevada Bureau of Mines and Geology Bulletin 62, 218 p., 16 pl. Cornwall, H.R., 1972, Geology and Mineral Deposits of Southern Nye County, Nevada: Nevada Bureau of Mines and Geology Bulletin 77, 49 p., 2 pl. Hose, R.K., and Blake, M.C, Jr., 1976, Geology, Pt. 1, in Geology and Mineral Resources of White Pine County, Nevada: Nevada Bureau of Mines and Geology Bulletin 85, p. 1-32, 2 pl. Coats, R.R., 1987, Geology of Elko County, Nevada: Nevada Bureau of Mines and Geology Bulletin 101, 112 p., 1 pl. Tschanz, C.M., and Pampeyan, E.H., 1970, Geology and Mineral Deposits of Lincoln County, Nevada: Nevada Bureau of Mines Bulletin 73, 187 p., 7 pl.
Geographic coverage	Clark - Elko - Lincoln - Nye - White Pine