About: Sixtymile Formation

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The Sixtymile Formation is a very thin accumulation of sandstone, siltstone, and breccia underlying the Tapeats Sandstone that is exposed in only four places in the Chuar Valley. These exposures occur atop Nankoweap Butte and within Awatubi and Sixtymile Canyons in the eastern Grand Canyon, Arizona. The maximum preserved thickness of the Sixtymile Formation is about 60 meters (200 ft). The actual depositional thickness of the Sixtymile Formation is unknown owing to erosion prior to deposition of the Tapeats Sandstone.

Attributes	Values
rdf:type	yago:Abstraction100002137 yago:Arrangement107938773 yago:Formation108426461 yago:Group100031264 yago:WikicatGeologicFormationsOfTheUnitedStates
rdfs:label	Sixtymile-Formation (de) Sixtymile Formation (en)
rdfs:comment	Die Sixtymile-Formation ist die unterste Formation der kambrischen Tonto Group im Südwesten der Vereinigten Staaten von Amerika. Sie wurde im Zeitraum 527 bis 508 Millionen Jahre abgelagert (Kambrium – Terreneuvium, 2. Stufe sowie 2. Serie, 3. und 4. Stufe). (de) The Sixtymile Formation is a very thin accumulation of sandstone, siltstone, and breccia underlying the Tapeats Sandstone that is exposed in only four places in the Chuar Valley. These exposures occur atop Nankoweap Butte and within Awatubi and Sixtymile Canyons in the eastern Grand Canyon, Arizona. The maximum preserved thickness of the Sixtymile Formation is about 60 meters (200 ft). The actual depositional thickness of the Sixtymile Formation is unknown owing to erosion prior to deposition of the Tapeats Sandstone. (en)
foaf:depiction
dcterms:subject	Geologic formations of Arizona Cambrian System of North America Natural history of the Grand Canyon Cambrian Arizona
Wikipage page ID	40619869 (xsd:integer)
Wikipage revision ID	1094674841 (xsd:integer)
Link from a Wikipage to another Wikipage	Detrital zircon geochronology Geologic formations of Arizona Cambrian System of North America Unkar Group Vishnu Basement Rocks Chert Geological formation Geology of the Grand Canyon area Chuar Group Grand Canyon Supergroup Conglomerate (geology) Fault scarp Active fault Natural history of the Grand Canyon Tonto Group Dolomite (rock) Landslide Northern Arizona Pegmatite Schist Breccia Cambrian Arizona Gneiss Granite Tapeats Sandstone Siltstone Syncline Nankoweap Formation Sandstone
Link from a Wikipage to an external page	https://web.archive.org/web/20121220094947/http:/www.nature.nps.gov/geology/parks/grca/age/index.cfm http://www.nps.gov/grca/naturescience/geology_manual.htm http://3dparks.wr.usgs.gov/coloradoplateau/index.html http://3dparks.wr.usgs.gov/coloradoplateau/lexicon/chuar_group.htm http://3dparks.wr.usgs.gov/coloradoplateau/lexicon/sixtymile.htm http://www.gcrg.org/bqr/12-1/supergroup.html http://www.gcrg.org/bqr/pdf/12-1.pdf
sameAs	Sixtymile Formation Sixtymile Formation Sixtymile Formation Sixtymile Formation Sixtymile Formation
underlies	Tapeats Sandstone
unitof	Tonto Group
dbp:wikiPageUsesTemplate	dbt:Infobox_rockunit dbt:Convert dbt:Flag dbt:ISBN dbt:Reflist dbt:Short_description dbt:Fossil_range dbt:Geology_of_the_Grand_Canyon_area
thumbnail	wiki-commons:Special:FilePath/Sixtymile_Formation_in_Grand_Canyon.jpg?width=300
age	Cambrian, (en)
caption	Sixtymile Formation in Grand Canyon (en)
period	Cambrian (en)
region	, Northern Arizona) (en)
Thickness	, at maximum (en)
type	Geological formation
has abstract	Die Sixtymile-Formation ist die unterste Formation der kambrischen Tonto Group im Südwesten der Vereinigten Staaten von Amerika. Sie wurde im Zeitraum 527 bis 508 Millionen Jahre abgelagert (Kambrium – Terreneuvium, 2. Stufe sowie 2. Serie, 3. und 4. Stufe). (de) The Sixtymile Formation is a very thin accumulation of sandstone, siltstone, and breccia underlying the Tapeats Sandstone that is exposed in only four places in the Chuar Valley. These exposures occur atop Nankoweap Butte and within Awatubi and Sixtymile Canyons in the eastern Grand Canyon, Arizona. The maximum preserved thickness of the Sixtymile Formation is about 60 meters (200 ft). The actual depositional thickness of the Sixtymile Formation is unknown owing to erosion prior to deposition of the Tapeats Sandstone. Sixtymile Formation and the underlying Chuar Group are preserved only in a broad asymmetric fold comprising both units, called the Chuar syncline. The Chuar Syncline is a doubly plunging fold, which means that along the hingeline within the axis of the syncline, beds in some areas (Nankoweap Canyon) dip toward the south, and in other areas (Lava Chuar Canyon), beds dip toward the north. The Sixtymile Formation, Chuar Group, and Chuar Syncline is bounded on the east by the Butte fault zone and on all other sides by the overlying Tapeats Sandstone. The hingeline of the Chuar Syncline parallels the trace of the Butte fault, suggesting a genetic relationship between the syncline and the fault. In descending order, the Sixtymile Formation is underlain by the Chuar Group, Nankoweap Formation, and the Unkar Group. The Unkar Group lies unconformably upon deeply eroded granites, gneisses, pegmatites, and schists of the Vishnu Basement Rocks. The Nankoweap and Sixtymile formations together with the Chuar and Unkar groups comprise the Grand Canyon Supergroup. (en)
extent	the Chuar syncline, Grand Canyon (en)
namedby	Ford et al. , Ford and Breed , and Elston (en)
otherlithology	intraformational breccia (en)
overlies	Chuar Group
prilithology	siltstone and sandstone (en)
prov:wasDerivedFrom	wikipedia-en:Sixtymile_Formation?oldid=1094674841&ns=0
page length (characters) of wiki page	15254 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Sixtymile_Formation
is Link from a Wikipage to another Wikipage of	Cardenas Basalt Bass Formation Unkar Group Geology of Arizona Chuar Group Grand Canyon Supergroup Shinumo Quartzite Tonto Group Laura J. Crossey Hakatai Shale Tanner Graben Tapeats Sandstone Great Unconformity
is foaf:primaryTopic of	wikipedia-en:Sixtymile_Formation

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