Basalt, gravel, and tuffaceous sedimentary rocks (NVTbg;0)

Basalt, gravel, and tuffaceous sedimentary rocks

Basalt flows, cinder and lava cones, gravel, and tuffaceous sedimentary rocks mostly in Elko and some in Humboldt Counties. This unit includes the Banbury Formation (Stewart and Carlson, 1978) and the Big Island Formation in Elko County and other unnamed units. It corresponds to unit Tbg from the 1978 State map.

State	Nevada
Name	Basalt, gravel, and tuffaceous sedimentary rocks
Geologic age	Miocene
Lithologic constituents	Major Igneous > Volcanic > Mafic-volcanic > Basalt (Flow, Pyroclastic-cinder cone, Pyroclastic-tuff) Sedimentary (Tuffaceous)tuffaceous sedimentary rocks
References	Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000. Extended unit descriptions taken from pamphlet that accompanies geologic data/map. https://pubs.er.usgs.gov/publication/ds249
NGMDB product	NGMDB product page for 81584
Counties	Elko - Humboldt

Basalt, gravel, and tuffaceous sedimentary rocks

Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000. Extended unit descriptions taken from pamphlet that accompanies geologic data/map.