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Burro Canyon Formation

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Burro Canyon Formation
Stratigraphic range: Early Cretaceous
TypeFormation
UnderliesMancos Shale Formation
OverliesMorrison Formation
Thickness0–55 metres (0–180 ft)
Location
RegionColorado, New Mexico, Utah
CountryUnited States

The Burro Canyon Formation is an Early Cretaceous Period sedimentary geologic formation, found in western Colorado, the Chama Basin and eastern San Juan Basin of northern New Mexico, and in eastern Utah.[1]

Geology

The lithology of the Burro Canyon Formation is dominated by medium- to fine-grained sandstone, much of which has rounded chert and quartz pebbles above scour surfaces.[1] The Burro Canyon Formation was deposited in a braided- stream system.[1]

The formation overlies the Morrison Formation, and underlies the Mancos Shale Formation.[1] It is similar to the Cedar Mountain Formation in the region.

Fossils

The Burro Canyon Formation preserves fossils dating back to the Early Cretaceous period of the Mesozoic Era.[2]

See also

References

  1. ^ a b c d New Mexico Geological Association.edu: "SURFACE and SUBSURFACE STRATIGRAPHY of the BURRO CANYON FORMATION, DAKOTA SANDSTONE, and INTERTONGUED MANCOS SHALE of the CHAMA BASIN, NEW MEXICO"; 2005.
  2. ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014. {{cite web}}: |author= has generic name (help)


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