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About: Tonto Group

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The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon. As currently defined, the Tonto groups consists of the Sixtymile Formation, Tapeats Sandstone, Bright Angel Shale (or Formation), Muav Limestone (or Formation), and Frenchman Mountain Dolostone. Historically, it included only the Tapeats Sandstone, Bright Angel Shale, and Muav Limestone. Because these units are defined by lithology and three of them interfinger and intergrade laterally, they lack the simple layer cake geology as they are typically portrayed as having and geological mapping of them is complicated.

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  • Die Tonto Group ist eine geologische Gruppe des Kambriums im Südwesten der Vereinigten Staten. Sie bildet Teil der (Sauk I und Sauk II). (de)
  • The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon. As currently defined, the Tonto groups consists of the Sixtymile Formation, Tapeats Sandstone, Bright Angel Shale (or Formation), Muav Limestone (or Formation), and Frenchman Mountain Dolostone. Historically, it included only the Tapeats Sandstone, Bright Angel Shale, and Muav Limestone. Because these units are defined by lithology and three of them interfinger and intergrade laterally, they lack the simple layer cake geology as they are typically portrayed as having and geological mapping of them is complicated. (en)
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  • 35812738 (xsd:integer)
dbo:wikiPageLength
  • 20554 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1082232266 (xsd:integer)
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dbp:age
  • Cambrian, (en)
dbp:caption
  • Muav Limestone- and Bright Angel Shale-, resting on Tapeats Sandstone- and the Tonto Platform, inner canyon, Granite Gorge (en)
dbp:country
  • - (en)
dbp:imagesize
  • 285 (xsd:integer)
dbp:locationTs
  • Backtail Canyon (en)
dbp:namedby
  • G. K. Gilbert (en)
dbp:namedfor
  • Tonto Creek or Tonto Basin, (en)
dbp:otherlithology
  • calcareous mudstone and glauconitic sandstone (en)
dbp:overlies
  • Vishnu Basement Rocks and Grand Canyon Supergroup (en)
dbp:period
  • Cambrian (en)
dbp:prilithology
  • sandstone, conglomerate, siltstone, shale, limestone, and dolomite (en)
dbp:region
  • - (en)
  • - and, (en)
dbp:subunits
  • Frenchman Mountain Dolostone, Muav Limestone, Bright Angel Shale, Tapeats Sandstone, and Sixtymile Formation (en)
dbp:type
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rdfs:comment
  • Die Tonto Group ist eine geologische Gruppe des Kambriums im Südwesten der Vereinigten Staten. Sie bildet Teil der (Sauk I und Sauk II). (de)
  • The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon. As currently defined, the Tonto groups consists of the Sixtymile Formation, Tapeats Sandstone, Bright Angel Shale (or Formation), Muav Limestone (or Formation), and Frenchman Mountain Dolostone. Historically, it included only the Tapeats Sandstone, Bright Angel Shale, and Muav Limestone. Because these units are defined by lithology and three of them interfinger and intergrade laterally, they lack the simple layer cake geology as they are typically portrayed as having and geological mapping of them is complicated. (en)
rdfs:label
  • Tonto Group (de)
  • Tonto Group (en)
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is dbp:rock of
is dbp:unitof of
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