Alluvial deposits (NVQa;0)

State	Nevada
Name	Alluvial deposits
Geologic age	Quaternary
Original map label	Qa
Primary rock type	alluvium
Secondary rock type	mass wasting
Other rock types	dune sand; lake or marine deposit (non-glacial)
Lithologic constituents	Major Unconsolidated (Alluvial)Includes steam deposits, fans, and valley fill, with grain size ranging from gravels to silt. Minor Unconsolidated (Beach)Possibly incidental in rank. Unconsolidated (Eolian)Mostly dune sand. Possibly incidental in rank. Unconsolidated (Mass wasting)Includes talus and colluvium, and possibly incidental pediment gravels. Possibly incidental in rank. Incidental Unconsolidated (Lacustrine)Includes playa deposits. Possibly minor in rank.
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). 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. Stewart, J.H., and McKee, E.H., 1977, Geology, Pt. 1, in Geology and Mineral Deposits of Lander County, Nevada: Nevada Bureau of Mines and Geology Bulletin 88, p. 1-59, 3 pl. Willden, R., 1964, Geology and Mineral Deposits of Humboldt County, Nevada: Nevada Bureau of Mines and Geology Bulletin 59, 154 p., 3 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. Albers, J.P., and Stewart, J.H., 1972, Geology and Mineral Deposits of Esmeralda County, Nevada: Nevada Bureau of Mines and Geology, 80 p., 2 pl. Roberts, R.J., Montgomery, K.M., and Lehner, R.E., 1967, Geology and Mineral Resources of Eureka County, Nevada: Nevada Bureau of Mines and Geology Bulletin 64, 152 p., 12 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. Johnson, M.G., 1977, Geology and Mineral Deposits of Pershing County, Nevada: Nevada Bureau of Mines and Geology Bulletin 89, 115 p., 4 pl. Kleinhampl, F.J., and Ziony, J.I., 1985, Geology of Northern Nye County, Nevada: Nevada Bureau of Mines and Geology Bulletin 99A, 172 p., 2 pl. Ross, D.C., 1961, Geology and Mineral Deposits of Mineral County, Nevada: Nevada Bureau of Mines and Geology Bulletin 58, 98 p., 2 pl. Bonham, H.F., 1969, Geology and Mineral Deposits of Washoe and Storey Counties, Nevada: Nevada Bureau of Mines and Geology Bulletin 70, 140 p., 6 pls. Moore, J.G., 1969, Geology and Mineral Deposits of Lyon, Douglas, and Ormsby Counties, Nevada: Nevada Bureau of Mines and Geology Bulletin 75, 45 p., 2 pl. Willden, R., and Speed, R.C., 1974, Geology and Mineral Deposits of Churchill County, Nevada: Nevada Bureau of Mines and Geology Bulletin 83, 95 p., 5 pl.
Geographic coverage	Churchill - Clark - Douglas - Elko - Esmeralda - Eureka - Humboldt - Lander - Lincoln - Lyon - Mineral - Nye - Pershing - Storey - Washoe - White Pine - Carson City