Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Geology_of_the_Grand_Canyon_area> ?p ?o }
- Geology_of_the_Grand_Canyon_area abstract "The geology of the Grand Canyon area includes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores in western North America. Both marine and terrestrial sediments are represented, including fossilized sand dunes from an extinct desert. There are at least 14 known unconformities in the geologic record found in the Grand Canyon area.Uplift of the region started about 75 million years ago during the Laramide orogeny; a mountain-building event that is largely responsible for creating the Rocky Mountains to the east. In total, the Colorado Plateau was uplifted an estimated 2 miles (3.2 km). The adjacent Basin and Range province to the west started to form about 18 million years ago as the result of crustal stretching. A drainage system that flowed through what is today the eastern Grand Canyon emptied into the now lower Basin and Range province. Opening of the Gulf of California around 6 million years ago enabled a large river to cut its way northeast from the gulf. The new river captured the older drainage to form the ancestral Colorado River, which in turn started to form the Grand Canyon.Wetter climates brought upon by ice ages starting 2 million years ago greatly increased excavation of the Grand Canyon, which was nearly as deep as it is now by 1.2 million years ago. Volcanic activity deposited lava over the area 1.8 million to 500,000 years ago. At least 13 lava dams blocked the Colorado River, forming lakes that were up to 2,000 feet (610 m) deep. The end of the last ice age and subsequent human activity has greatly reduced the ability of the Colorado River to excavate the canyon. Dams in particular have upset patterns of sediment transport and deposition. Controlled floods from Glen Canyon Dam upstream have been conducted to see if they have a restorative effect. Earthquakes and mass wasting erosive events still affect the region.".
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- Geology_of_the_Grand_Canyon_area wikiPageExternalLink gc_layer.htm.
- Geology_of_the_Grand_Canyon_area wikiPageExternalLink grand.pdf.
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- Geology_of_the_Grand_Canyon_area wikiPageExternalLink index.cfm.
- Geology_of_the_Grand_Canyon_area wikiPageExternalLink geologicformations.htm.
- Geology_of_the_Grand_Canyon_area wikiPageExternalLink index.htm.
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- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Alluvium.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink American_Cordillera.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink American_cordillera.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Ancestral_Rocky_Mountains.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Aquiclude.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Aquifer.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Basalt.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Basement_(geology).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Basement_rock.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Basin_and_Range.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Basin_and_range_topography.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Bass_Formation.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Bourgueticrinida.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Brachiopod.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Bryozoa.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Bryozoan.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Calcium_carbonate.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cambrian.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cambrian_Explosion.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cambrian_explosion.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cardenas_Basalt.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Category:Articles_which_contain_graphical_timelines.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Category:Geology_of_Arizona.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Category:Grand_Canyon.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Category:Natural_history_of_the_Grand_Canyon.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Category:Regional_geology_of_the_United_States.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cenozoic.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Chert.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Chinle_Formation.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Chuar_Group.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Climate.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Coconino_Plateau.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Coconino_Sandstone.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Colorado.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Colorado_Plateau.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Colorado_Plateaus.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Colorado_River.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Colorado_River_(US).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Conglomerate_(geology).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Continent.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Continental_crust.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Coral.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Crinoid.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cross-bedding.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Cross_bedding.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Crust_(geology).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Dam.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Debris_flow.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Deposition_(geology).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Deposition_(sediment).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Devonian.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Disconformity.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Dolomite.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Downcutting.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Dox_Formation.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Dune.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Earthquake.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Educational_trail.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Eocene.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Estuary.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Fan_waterfalls.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Fault-block_mountain.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Fault_(geology).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Fault_block.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Fern.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Flash_flood.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Garnet.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geologic_formation.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geologic_history.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geologic_time_scale.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geological_formation.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geology_of_the_Bryce_Canyon_area.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geology_of_the_Grand_Canyon_area.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geology_of_the_Rocky_Mountains.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Geology_of_the_Zion_and_Kolob_canyons_area.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Glacier_National_Park_(U.S.).
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Glauconite.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Glen_Canyon_Dam.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Gneiss.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Graben.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Grand_Canyon.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Grand_Canyon_National_Park.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Grand_Canyon_Village.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Grand_Canyon_Village,_Arizona.
- Geology_of_the_Grand_Canyon_area wikiPageWikiLink Grand_Staircase.