EARTHSC 1105 Lecture Notes - Lecture 9: Capitol Reef National Park, Desert Varnish, Carbonate Platform
15 Nov 2016
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Document Summary
Capitol reef national park: earliest paleo-indians, hunter-gatherers. 1866 mormon military expedition enters capitol reef area. Colonized the area over the next 20 years: supported approximately 10 families. 1937 president roosevelt made capitol reef a national monument. 1968 president johnson made capitol reef a national park. Limestone- formed from caco3- producing photosynthetic organisms. Sand dunes and sediment deposited from the continent. Stromatolite fossils: deposited of trees from mainland, stromatolite macroscopic dome structures formed by intermittent, cyanobacteria filamentous, photosynthetic, nitrogen-fixing bacteria. Sedimentary rocks formed from eroded pre-existing rocks or biologic layers of cyanobacteria and sediment material. Laramide orogeny by sand dunes or ripples: clastic formed from sediment (bits of broken rocks, conglomerate poorly sorted, rounded, large grained, sandstone well sorted, rounded, fine grained. Alluvial fan a fan of alluvial sediment deposited by rapid and intermittent. Arch a narrow, tall feature made of resistant rock with an opening at the. Plateau a tall, broad, flat-topped area of resistant rock.
