Shale, limestone, and sandstone; Triassic marine to non-marine epicontinental deposits (subunits are TRl and TRu) (IDTR;0)

State	Idaho
Name	Shale, limestone, and sandstone; Triassic marine to non-marine epicontinental deposits (subunits are TRl and TRu)
Geologic age	Triassic
Original map label	TR; DSc
Primary rock type	shale
Secondary rock type	limestone
Other rock types	sandstone; chert; conglomerate
Lithologic constituents	Major Sedimentary > Carbonate > Limestone (Bed)predominant in Portneuf, Fort Hall, Ross Fk Mbrs Sedimentary > Clastic > Mudstone > Shale (Bed)predominant in Wood Shale and Dinwoody Fm Minor Sedimentary > Clastic > Sandstone (Bed)predominant in Higham Grit and Timothy sandstone Incidental Sedimentary > Clastic > Conglomerate (Lense)Higham Grit is conglomeratic Sedimentary > Chemical > Chert (Lense)Fort Hall Mbr is siliceous and cherty ls
Map references	Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000.
Unit references	Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000. Isaacson, P.E., 1983, Stratigraphic correlation of the Paleozoic and Mesozoic rocks of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, Information Circular 37. Rember, W.C., and Bennett, E.H., 1979, Geologic map of the Idaho Falls quadrangle, Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, Geologic Map Series, Idaho Falls 2o quadrangle, scale 1:250,000.
Geographic coverage	Bannock - Bingham - Bonneville - Caribou - Cassia - Clark - Fremont - Idaho - Lemhi - Lewis - Madison - Nez Perce - Teton