Jurassic and Triassic sedimentary and volcanic rocks (AZJTR;0)

Undivided massive quartz-feldspar porphyry of the Jurassic Planet Volcanics, quartz-rich metasandstone of the Jurassic Vampire Formation, and quartzite, phyllite, and fine grained, variably calcareous metasiltstone of the Triassic Buckskin Formation; exposed primarily in the Buckskin and Rawhide Mountains of western Arizona. This unit also includes sandstone and conglomerate beneath Jurassic volcanic rocks in the central Dome Rock Mountains. (160-240 Ma)

State	Arizona
Name	Jurassic and Triassic sedimentary and volcanic rocks
Geologic age	Triassic and Jurassic
Original map label	J2
Comments	Planet, Vampire, Buckskin, .
Primary rock type	rhyolite
Secondary rock type	sandstone
Other rock types	phyllite; metarhyolite; orthoquartzite; rhyolite; conglomerate
Map references	Richard, S. M., Reynolds, S.J., Spencer, J. E., and Pearthree, P. A., 2000, Geologic Map of Arizona: Arizona Geological Survey Map 35, 1 sheet, scale 1:1,000,000.
Unit references	Richard, S. M., Reynolds, S.J., Spencer, J. E., and Pearthree, P. A., 2000, Geologic Map of Arizona: Arizona Geological Survey Map 35, 1 sheet, scale 1:1,000,000. Tosdal R.M., Haxel, G.B., and Wright, J.E., 1989, Jurassic geology of the Sonoran Desert region, southern Arizona, southeastern California, and northernmost Sonora: Construction of a continental-margin magmatic arc, in Jenney, J.P., and Rey
Geographic coverage	La Paz - Mohave