WebDistribution of the Owl Rock member of the Chinle formation in the upper Little Colorado River area, Arizona and New Mexico ..... 127 x. INTRODUCTION The brilliant-hued Upper Triassic Chinle formation is exposed throughout large areas in the southern part of the Colorado Plateaus ... WebChinle Formation (Late Triassic) at surface, ... Includes a small amount of andesite, dacite, and rhyolite. Rocks of this map unit are largely restricted to six areas widely distributed in Arizona: San Francisco and Uinkaret volcanic fields in northern Arizona (0-4 Ma); Springerville (0-4 Ma) and San Carlos (0-2 Ma) volcanic fields in east ...
Geology of Canyonlands National Park U.S. Geological Survey
Web371 of 564. Ganado, Arizona Badland erosion exposes colorful shales in the Chinle Formation, north of Ganado, Arizona. The geology of the Little Colorado River Valley in eastern Arizona, including Petrified Forest Nationa Park, is characterized by widespread exposures of Triassic and Jurassic terrestrial sedimentary rocks. north carolina paper mill
Geologic units in Apache county, Arizona - USGS
WebThe Rock Point Formation of the Chinle Group forms bones are not reworked. the slope below the sandstone that contains the phytosaur fossils (Lucas, 1993). Just below that sandstone, the Rock Point consists of color-mottled Phytosaur skull reddish brown, grayish red and brownish gray siltstones with numerous The phytosaur skull from Big Indian ... WebAug 8, 2008 · Wingate sandstone forms a sheer cliff at least 300 feet high, at top of the steep slope on which the Chinle formation is exposed: 300+ Chinle formation: Regular beds of pink sandstone, 6 inches to 2 feet thick: 12: Coarse sandstone, pink to tan, cross-bedded: 25: Gritty shale and fine-grained sandstone, in thin layers: 10: Gray calcareous ... WebChinle Group (NM,TX) Subunits: GROUP STATUS (alphabetical): Bull Canyon Formation (NM), Dockum Formation (TX), Garita Creek Formation (NM), Redonda Formation (NM), Rock Point Formation (NM), San Pedro Arroyo Formation (NM), Santa Rosa Formation (NM), Shinarump Formation (NM), Trujillo Formation (NM). north carolina parks and wildlife