| OCR Text |
Show 174 sandstone may weather red. Laminated to very thin wavy bedding. Asymmetric ripples are preserved on a bedding plane surface exposed at 0.4 5. Calcite cement. m. Rippled sandstone facies. 0.8 . Unit 2. Slope-forming unit is mostly covered. Up to 0.3 m may crop out protected by the overlying sandstone ledge. Gray to yellowish or reddish-brown, very fine- to fine-grained silty sandstone. Laminated to very thin wavy bedding. Calcite cement. Siltstone facies. where . 4. 0.7 . Unit 1. Thin ledge-forming sandstone. Gray fine-grained sandstone becomes reddish-brown in the upper 0.1 m. Clasts up to coarse-grained sand are rare. Laminated to very thin bedding is flat to wavy. Small cross-bed sets occur locally in the upper 0.2 m. Calcite cement. Unit 1 is Bed A (O'Sullivan, 1981b, 1984a). Rippled sandstone facies Total measured thickness, Tidwell Member. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 0.3 24.35 Summerville Formation: 3. Slope-forming unit brown siltstone and 2. is mostly covered. Gray to yellowish sandy siltstone. Calcite cement. or reddish1.0 . Gray to yellow, very fine to fine-grained sandstone is recessive atop underlying Moab Tongue sandstone. Laminated to very thin bedding. Calcite cement. . 0.8 . Total measured thickness, Summerville Formation Entrada Sandstone Moab 1. 1.8 (part): Tongue Member (part): Cliff-forming unit. White to light gray fine-grained sandstone. Quartz rich sandstone is well-sorted with rounded grains. Thick tabular bedding with large-scale cross-bed sets. Silica-cemented Total measured thickness (incomplete), Entrada Sandstone. . . . .... . . . . . . . . .. . 2.0 2.0 |
