Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Bass_Formation> ?p ?o. }
Showing items 1 to 46 of
46
with 100 items per page.
- Bass_Formation abstract "The Bass Formation, also known as the Bass Limestone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Bass Formation erodes as either cliffs or stair-stepped cliffs. In the case of the stair-stepped topography, resistant dolomite layers form risers and argillite layers form steep treads. In general, the Bass Formation and associated strata of the Unkar Group rocks dip northeast (10°-30°) toward normal faults that dip 60+° toward the southwest. This can be seen at the Palisades fault in the eastern part of the main Unkar Group outcrop area (below East Rim). In addition, thick, prominent, and dark-colored basaltic sills intrude across the Bass Formation.The Bass Formation is the basal part of the Unkar Group. The Unkar Group is about 1,600 to 2,200 m (5,200 ft to 7,200 ft) thick and composed of, in ascending order, the Bass Formation, Hakatai Shale, Shinumo Quartzite, Dox Formation, and Cardenas Basalt. The Unkar Group is overlain in ascending order by the Nankoweap Formation, about 113 to 150 m (371 to 490 ft) thick; the Chuar Group, about 1,900 m (6,200 ft) thick; and the Sixtymile Formation, about 60 m (200 ft) thick. The Grand Canyon Supergroup, of which the Bass Formation is the lowermost formation, overlies deeply eroded granites, gneisses, pegmatites, and schists that comprise Vishnu Basement Rocks.There has been some discussion about the nomenclature of the Bass Formation. It was originally named the Bass Limestone in 1914 for Bass Canyon, where it is typically exposed. The Bass Limestone has been reclassified as the Bass Formation by geologists because it consists of heterogeneous mixtures of clastic and carbonate sedimentary strata of which dolomite is the predominant rock type and limestone is only a minor rock type. In addition, its Hotauta Member was originally designated as the Hotauta Conglomerate in 1914 as a separate unit of formation status for Hotauta Canyon. It was later included in the Bass Formation as a member where it has remained.".
- Bass_Formation thumbnail Utah_Flats.jpg?width=300.
- Bass_Formation wikiPageExternalLink bass.htm.
- Bass_Formation wikiPageExternalLink cpa.
- Bass_Formation wikiPageExternalLink 1.
- Bass_Formation wikiPageExternalLink sumry_6701.html.
- Bass_Formation wikiPageExternalLink proddesc_20120.htm.
- Bass_Formation wikiPageExternalLink ngmdb_home.html.
- Bass_Formation wikiPageExternalLink supergroup.html.
- Bass_Formation wikiPageExternalLink 12-1.pdf.
- Bass_Formation wikiPageExternalLink www.mindat.org.
- Bass_Formation wikiPageExternalLink loc-43661.html.
- Bass_Formation wikiPageExternalLink loc-48770.html.
- Bass_Formation wikiPageExternalLink geology_manual.htm.
- Bass_Formation wikiPageExternalLink bass_limestone.shtml.
- Bass_Formation wikiPageExternalLink supergroup_formations.shtml.
- Bass_Formation wikiPageExternalLink index.cfm.
- Bass_Formation wikiPageID "38150001".
- Bass_Formation wikiPageRevisionID "594842777".
- Bass_Formation age "Meso-Proterozoic, 1,250 Ma".
- Bass_Formation country Southwestern_United_States.
- Bass_Formation hasPhotoCollection Bass_Formation.
- Bass_Formation namedby "Noble".
- Bass_Formation namedfor "Bass Canyon".
- Bass_Formation otherlithology "sandstone, conglomerate, argillite, and limestone".
- Bass_Formation overlies "Vishnu Basement Rocks on major erosion unconformity".
- Bass_Formation period "Mesoproterozoic".
- Bass_Formation prilithology Dolomite.
- Bass_Formation region "Arizona, Grand Canyon".
- Bass_Formation region "Isis Temple region, southwest Bright Angel Canyon, at north side, Granite Gorge, and along Colorado River".
- Bass_Formation subunits "Hotauta Member".
- Bass_Formation thickness "to".
- Bass_Formation type Formation_(stratigraphy).
- Bass_Formation underlies Hakatai_Shale.
- Bass_Formation unitof Unkar_Group.
- Bass_Formation subject Category:Geologic_formations_of_the_United_States.
- Bass_Formation subject Category:Geology_of_Arizona.
- Bass_Formation subject Category:Grand_Canyon.
- Bass_Formation comment "The Bass Formation, also known as the Bass Limestone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Bass Formation erodes as either cliffs or stair-stepped cliffs. In the case of the stair-stepped topography, resistant dolomite layers form risers and argillite layers form steep treads.".
- Bass_Formation label "Bass Formation".
- Bass_Formation sameAs m.0pdn7fy.
- Bass_Formation sameAs Q4867917.
- Bass_Formation sameAs Q4867917.
- Bass_Formation wasDerivedFrom Bass_Formation?oldid=594842777.
- Bass_Formation depiction Utah_Flats.jpg.
- Bass_Formation isPrimaryTopicOf Bass_Formation.