Trujillo Formation (TXTRj;0)

State	Texas
Name	Trujillo Formation
Geologic age	Phanerozoic \| Mesozoic \| Triassic-Late
Original map label	TRj
Comments	Conglomerate, sandstone, and shale. Conglo sandy, composed of granules and pebbles of quartz, limest., sandst., siltst., minor chert, and frags of petrified wood, massive, gray, brown. Sandst is conglomeratic, contains grains of ls, micaceous, calc. locally, crossbedded to massive. Shale micaceous, thin interbeds, gray and red. Thickness 75 ft.
Primary rock type	fine-grained mixed clastic
Secondary rock type	sandstone
Other rock types
Lithologic constituents	Major Sedimentary > Clastic > Mixed-clastic > Conglomerate-sandstone (Bed)
Map references	Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000
Unit references	Bureau of Economic Geology, 1983, Tucumcari Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.
Geographic coverage	Hartley - Oldham - Potter