Schnebly Hill Formation

Schnebly Hill Formation
Stratigraphic range: [1]
Bell Rock, Sedona
Thickness800 feet (240 m) to 1,000 feet (300 m)
Lithology
PrimarySandstone
Location
RegionColorado Plateau
CountryUnited States
Type section
Named forSedona Schnebly
LocationArizona
Thickness at type section800 feet (240 m) to 1,000 feet (300 m)

The Schnebly Hill Formation is a section of red bed deposits found at the Colorado Plateau, near Sedona, Arizona. It is a dark red sandstone, from 800 feet (240 m) to 1,000 feet (300 m) thick. It lies between Coconino Sandstone and the older Hermit Formation.[2] It is near the Supai Group.[3]

The source of the name "Schnebly" is Sedona Schnebly, after whom the city of Sedona, Arizona, was named.[4]

Geology

The formation traces to the Permian Age.[5][6]

The formation is the most prominent layer of the red rocks of the Sedona area due the presence of hematite – iron-oxide (rust) – giving the sandstone a red color. The Schnebly Hill Sandstone formation comprises three sections:

  • the Bell Rock member,
  • the Fort Apache member, and
  • the Sycamore Pass member.[7]

See also

Sedona-area rocks

Local geology

Local interest

References

  1. ^ "Geologic Unit: Haskell". National Geologic Database. Geolex — Significant Publications. United States Geological Survey. Retrieved 2023-12-15. early Permian (Leonardian)
  2. ^ Cook, Terri (November 20, 2015). "Travels in Geology: Sedona: A journey to the edge of a supercontinent".
  3. ^ Blakey, Ronald C. "Central Arizona" (PDF). Archived from the original (PDF) on March 5, 2021.
  4. ^ "History of Sedona".
  5. ^ Waverly, Lowell (January 9, 2017). "Chapel in the Rocks". Retrieved 2022-03-07.
  6. ^ Bills, Donald J. "USGS Scientific Investigations Report 2005-5222, plate 1" (PDF).
  7. ^ Voges, Brianna. "Sedona Red Rock Formation".

34°53′27″N 111°42′20″W / 34.8909°N 111.7056°W / 34.8909; -111.7056

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