Arenite, carbonate, conglomerate, and shale; Late Proterozoic rifted continental margin; southeastern Idaho (IDZ2s;0)

State	Idaho
Name	Arenite, carbonate, conglomerate, and shale; Late Proterozoic rifted continental margin; southeastern Idaho
Geologic age	Late Proterozoic
Original map label	Z2s; Z?s
Comments	Age boundary between Late Proterozoic and Early Cambrian may lie in upper part of Camelback Mountain Quartzite. Although Camelback Mountain Quartzite is unfossiliferous, Cambrian fossils occur 300 ft above base of overlying Gibson Jack Fm. Wilbert Fm (quartzite is equivalent to Mutual Fm), ref. ID074.
Primary rock type	arenite
Secondary rock type	carbonate
Other rock types	conglomerate; shale
Lithologic constituents	Major Sedimentary > Clastic > Sandstone > Arenite (Bed)arenite and quartzite Minor Sedimentary > Clastic > Conglomerate (Bed) Sedimentary > Carbonate (Bed)dolomite and limestone Incidental Sedimentary > Clastic > Mudstone > Shale (Bed)
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. Link, P.K., and Jansen, S.T., 1987, Stratigraphy of Brigham Group[ (Late Proterozoic -Cambrian), Bannock, Portneuf, and Bear River Ranges, southeastern Idaho: in Miller, W.R., ed., The Thrust Belt Revisited: Wyoming Geological Association Field Conference Guidebook, no. 38, p. 133-147. Ruppel, E.T., Ross, R.J., Jr., and Schleicher, David, 1975, Precambrian Z and Lower Ordovician rocks in east-central Idaho: in Ruppel, E.T., Ross, R.J., Jr., and Schleicher, David, Precambrian and lower Ordovician rocks in east-central Idaho: U.S. Geological Survey Professional Paper, 889-B, p. B25-B34. [http://pubs.er.usgs.gov/publication/pp889]
Geographic coverage	Bannock - Bear Lake - Caribou - Franklin - Power