The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has a wide assortment of taxa represented in its fossil record, including dinosaur fossils in North America.It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish gray, or red. We propose this unit as the regional seal for the sand-dominated units that compose the brine formation selected for consideration of CO2 sequestration. Morrison Formation - Canyonlands National Park (U.S. National Park Service) Supersaurus (meaning "super lizard") is a genus of diplodocid sauropod dinosaur that lived in North America during the Late Jurassic period. . Conglomeratic sandstone strata at the base of the Brushy Basin member ... Brushy Basin Member on the Colorado Plateau "Popcorn" texture due to bentonite, formed from volcanic ash, characterizes the Brushy Basin . They used U-Pb radioisotope techniques to date two ash-rock layers near the top and base of the 320-foot thick Brushy Basin Member, a sub unit within the Morrison Formation that contains roughly two-thirds of all of the dinosaur quarries in the formation. (PDF) Field and laboratory validation of remote rover operations ... Also present are thin beds of lacustrine micritic limestone and . (2001). Sample from a slightly altered sandstone in Disappointment Valley, Dawson Draw quadrangle, San Miguel County, Colorado, yielded a Pb-alpha age 585 +/-65 Ma (zircon), indicating age of source rock [Precambrian Z]. These strata are discrete lithologic units that contain sedimentary structures oriented in a prevailing easterly direction, they locally rest upon sandstone in the Salt Wash that is ore bearing, and they are believed t Conglomeratic sandstone strata at the base of the Brushy Basin member ... In southwestern Colorado and southeastern Utah strata of conglomeratic sandstone are localized at the base of the Brush Basin shale member of the Morrison formation of Jurassic age. Anderson, Orin J., and Lucas, Spencer G., 1997, Lake T'oo'dichi' and the Brushy Basin of the Morrison Formation.
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