Schnebly Hill Formation
Dark red sandstone, the major component of the red rocks of Sedona, Arizona From Wikipedia, the free encyclopedia
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]
| Schnebly Hill Formation | |
|---|---|
| Stratigraphic range: [1] | |
 | |
| Thickness | 800 feet (240 m) to 1,000 feet (300 m) |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Region | Colorado Plateau |
| Country | United States |
| Type section | |
| Named for | Sedona Schnebly |
| Location | Arizona |
| Thickness at type section | 800 feet (240 m) to 1,000 feet (300 m) |
The source of the name "Schnebly" is Sedona Schnebly, after whom the city of Sedona, Arizona, was named.[4]
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, frankly, 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]
Sedona-area rocks
Local geology
Local interest
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