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  2. Red beds - Wikipedia

    en.wikipedia.org/wiki/Red_beds

    Red beds (or redbeds) are sedimentary rocks, typically consisting of sandstone, siltstone, and shale, that are predominantly red in color due to the presence of ferric oxides. Frequently, these red-colored sedimentary strata locally contain thin beds of conglomerate , marl , limestone , or some combination of these sedimentary rocks.

  3. New Red Sandstone - Wikipedia

    en.wikipedia.org/wiki/New_Red_Sandstone

    Exeter, Devon, ancient city walls of Isca Dumnoniorum with medieval and Roman elements. The New Red Sandstone, chiefly in British geology, is composed of beds of red sandstone and associated rocks laid down throughout the Permian (300 million years ago) to the end of the Triassic (about 200 million years ago), that underlie the Jurassic-Triassic age Penarth Group. [1]

  4. Danxia landform - Wikipedia

    en.wikipedia.org/wiki/Danxia_landform

    Danxia landforms are made up of uplifted continental crust that has been faulted and eroded, exposing large scarps of layered rock, red in color. [4] Danxia landforms cover several provinces in southeast China. Taining County, Fujian Province, has very good examples of "young" danxia landforms wherein deep, narrow valleys have been formed. As ...

  5. Bunter (geology) - Wikipedia

    en.wikipedia.org/wiki/Bunter_(geology)

    Bunter Pebble Beds is the name formerly given to a set of sandstone deposits within the New Red Sandstone containing rounded pebbles. They are thought to be alluvial deposits and, judging from the rounding of the mainly quartzite pebbles, to have resulted from prolonged transportation in a large and turbulent river, resulting in powerful abrasion.

  6. Chugwater Formation - Wikipedia

    en.wikipedia.org/wiki/Chugwater_Formation

    The Chugwater Formation is a mapped bedrock unit consisting primarily of red sandstone, in the states of Wyoming, Montana, and Colorado in the United States. It is recognized as a geologic formation in Colorado and Montana, but as a Group (set of formations), the Chugwater Group, in Wyoming.

  7. Jacobsville Sandstone - Wikipedia

    en.wikipedia.org/wiki/Jacobsville_Sandstone

    Jacobsville Sandstone is a red sandstone formation, marked with light-colored streaks and spots, primarily found in northern Upper Michigan, portions of Ontario, and under much of Lake Superior. Desired for its durability and aesthetics, the sandstone was used as an architectural building stone in both Canada and the United States.

  8. List of sandstones - Wikipedia

    en.wikipedia.org/wiki/List_of_sandstones

    Bollingen Sandstone (also Buchberg Sandstone, Uznaberg Sandstone, Bollinger-Lehholz Sandstone and Güntliweid Sandstone): Rapperswil-Jona by the Upper Lake Zürich Grès à cailloux roulés : near Avenches

  9. Geology of Brecon Beacons National Park - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Brecon_Beacons...

    The geology of the national park consists of a thick succession of sedimentary rocks laid down from the late Ordovician through the Silurian and Devonian to the late Carboniferous period. The rock sequence most closely associated with the park is the Old Red Sandstone from which most of its mountains are formed.

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