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  2. Mountain formation - Wikipedia

    en.wikipedia.org/wiki/Mountain_formation

    Mountain formation occurs due to a variety of geological processes associated with large-scale movements of the Earth's crust (tectonic plates). [1] Folding, faulting, volcanic activity, igneous intrusion and metamorphism can all be parts of the orogenic process of mountain building. [2] The formation of mountains is not necessarily related to ...

  3. Fossils of the Burgess Shale - Wikipedia

    en.wikipedia.org/wiki/Fossils_of_the_Burgess_Shale

    The Burgess Shale is a series of sediment deposits spread over a vertical distance of hundreds of metres, extending laterally for at least 50 kilometres (30 mi). [18] The deposits were originally laid down on the floor of a shallow sea; during the Late Cretaceous Laramide orogeny, mountain-building processes squeezed the sediments upwards to their current position at around 2,500 metres (8,000 ...

  4. Book Cliffs - Wikipedia

    en.wikipedia.org/wiki/Book_Cliffs

    Photographs of the American West, Boston Public Library The Book Cliff in Helper, Utah. The Book Cliffs are a series of desert mountains and cliffs in western Colorado and eastern Utah in the Western United States. [1] They are so named because the cliffs of Cretaceous sandstone capping many of the south-facing buttes appear similar to a shelf ...

  5. Fold mountains - Wikipedia

    en.wikipedia.org/wiki/Fold_mountains

    Fold mountains form in areas of thrust tectonics, such as where two tectonic plates move towards each other at convergent plate boundary.When plates and the continents riding on them collide or undergo subduction (that is – ride one over another), the accumulated layers of rock may crumple and fold like a tablecloth that is pushed across a table, particularly if there is a mechanically weak ...

  6. Paleobiota of the Klondike Mountain Formation - Wikipedia

    en.wikipedia.org/wiki/Paleobiota_of_the_Klondike...

    The Paleobiota of the Klondike Mountain Formation comprises a diverse suite of Early Eocene plants and animals recovered in North Central Washington State from the Klondike Mountain Formation. The formation outcrops in locations across the north western area of Ferry County , with major sites in Republic , north west of Curlew Lake , and on the ...

  7. Florissant Formation - Wikipedia

    en.wikipedia.org/wiki/Florissant_Formation

    The massive unconformity is due to erosion that occurred during the uplift of the modern Rocky Mountains, the Laramide Orogeny. [12] The Wall Mountain Tuff was deposited as a result of a large eruption from a distant caldera. The Florissant Formation itself is composed of alternating units of shale, mudstone, conglomerate, and volcanic deposits.

  8. Klondike Mountain Formation - Wikipedia

    en.wikipedia.org/wiki/Klondike_Mountain_Formation

    The Klondike Mountain Formation is an Early Eocene geological formation located in the northeast central area of Washington state.The formation is composed of volcanic rocks in the upper unit and volcanic plus lacustrine (lakebed) sedimentation in the lower unit. the formation is named for the type location designated in 1962, Klondike Mountain northeast of Republic, Washington.

  9. Black Elk Peak - Wikipedia

    en.wikipedia.org/wiki/Black_Elk_Peak

    At 7,244 feet (2,208 m), [1] it is the highest summit in the United States east of the Rocky Mountains. Though part of the North American Cordillera, it is generally considered to be geologically separate from the Rocky Mountains. It is also known as Hiŋháŋ Káǧa ('owl-maker' in Lakota) and Heȟáka Sápa ('elk black').