The Schnebly Hill Formation is a
section
Section, Sectioning or Sectioned may refer to:
Arts, entertainment and media
* Section (music), a complete, but not independent, musical idea
* Section (typography), a subdivision, especially of a chapter, in books and documents
** Section sign ...
of
red bed deposits found at the
Colorado Plateau
The Colorado Plateau, also known as the Colorado Plateau Province, is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This province covers an area of ...
, near
Sedona, Arizona
Sedona is a city that straddles the county line between Coconino and Yavapai counties in the northern Verde Valley region of the U.S. state of Arizona. As of the 2010 census, its population was 10,031. It is within the Coconino National Fo ...
. It is a dark red
sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.
Most sandstone is composed of quartz or feldspar (both silicates) ...
, from to thick. It lies between
Coconino Sandstone
Coconino Sandstone is a geologic formation named after its exposure in Coconino County, Arizona. This formation spreads across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah.
...
and the older
Hermit Formation
The Permian Hermit Formation, also known as the Hermit Shale, is a nonresistant unit that is composed of slope-forming reddish brown siltstone, mudstone, and very fine-grained sandstone. Within the Grand Canyon region, the upper part of the ...
.
It is near the
Supai Group
The Supai Group is a slope-forming section of red bed deposits found in the Colorado Plateau. The group was laid down during the Pennsylvanian to Lower Permian. Cliff-forming interbeds of sandstone are noticeable throughout the group. The Su ...
.
The source of the name "Schnebly" is
Sedona Schnebly
Sedona Schnebly (born Sedona Arabella Miller February 24, 1877 – November 13, 1950) was an early pioneer in the Oak Creek area of Arizona. She was the namesake of the town of Sedona, Arizona. She helped in the establishment of the family farm ...
, after whom the city of
Sedona, Arizona
Sedona is a city that straddles the county line between Coconino and Yavapai counties in the northern Verde Valley region of the U.S. state of Arizona. As of the 2010 census, its population was 10,031. It is within the Coconino National Fo ...
was named.
Geology
The formation traces to the
Permian Age
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...
.
The formation is the most prominent layer of the
red rocks
Red Rocks Amphitheatre (also colloquially as simply Red Rocks) is an open-air amphitheatre built into a rock structure in the western United States, near Morrison, Colorado, west of Denver. There is a large, tilted, disc-shaped rock behind th ...
of the Sedona area due the presence of
hematite
Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of . ...
– iron-oxide, frankly, rust – giving the
sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.
Most sandstone is composed of quartz or feldspar (both silicates) ...
a red color. The Schnebly Hill Sandstone formation comprises three sections:
* the Bell Rock member,
* the Fort Apache member, and
* the Sycamore Pass member.
See also
Sedona-area rocks
*
Bell Rock
*
Cathedral Rock
Cathedral Rock is a natural sandstone butte on the Sedona, Arizona, Sedona skyline and one of the most-photographed sights in Arizona, United States. The rock formation is located in the Coconino National Forest in Yavapai County, Arizona, Yava ...
*
Courthouse Butte
*
Red Rock State Park
Red Rock State Park is a state park of Arizona, United States, featuring a red sandstone canyon outside the city of Sedona, Arizona, Sedona. The main mission of this day-use park is the preservation of the riparian habitat along Oak Creek. Red ...
*
Slide Rock State Park
Slide Rock State Park is an Arizona State Park located in Oak Creek Canyon north of Sedona, Arizona, United States. It takes its name from a natural water slide formed by the slippery bed of Oak Creek. Slide Rock State Park is located on Coco ...
Local geology
*
Colorado Plateau
The Colorado Plateau, also known as the Colorado Plateau Province, is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This province covers an area of ...
*
Mogollon Rim
The Mogollon Rim ( or or ) is a topographical and geological feature cutting across the northern half of the U.S. state of Arizona. It extends approximately , starting in northern Yavapai County and running eastward, ending near the border ...
*
Supai Group
The Supai Group is a slope-forming section of red bed deposits found in the Colorado Plateau. The group was laid down during the Pennsylvanian to Lower Permian. Cliff-forming interbeds of sandstone are noticeable throughout the group. The Su ...
Local interest
*
Cottonwood, Arizona
Cottonwood is a city in Yavapai County, Arizona, United States. According to the 2010 census, the population of the city is 11,265.
Geography
Cottonwood is located at (34.7321, -112.0186). According to the United States Census Bureau, the c ...
*
Honanki
The Honanki Heritage Site is a cliff dwelling and rock art site located in the Coconino National Forest, about west of Sedona, Arizona. The Sinagua people of the Ancestral Puebloans, and ancestors of the Hopi people, lived here from about . The P ...
*
Jerome, Arizona
Jerome is a town in the Black Hills of Yavapai County in the U.S. state of Arizona. Founded in the late 19th century on Cleopatra Hill overlooking the Verde Valley, Jerome is located more than above sea level. It is about north of Phoenix alon ...
*
Jerome State Historic Park
Jerome State Historic Park is a state park of Arizona, US, featuring the Douglas Mansion, built in 1916 by a family of influential mining entrepreneurs in Jerome, Arizona, a mining region in the northeast of the Black Hills, east Yavapai County. ...
*
Chapel of the Holy Cross
*
Oak Creek Canyon
Oak Creek Canyon is a river gorge located in northern Arizona between the cities of Flagstaff and Sedona. The canyon is often described as a smaller cousin of the Grand Canyon because of its scenic beauty. State Route 89A enters the canyon o ...
*
Palatki Heritage Site
The Palatki Heritage Site is an archaeological site and park located in the Coconino National Forest, near Sedona, in Arizona, United States. In the Hopi language ''Palatki'' means 'red house'.
History
;Cliff dwellings
The Palatki site has a ...
*
Slide Rock State Park
Slide Rock State Park is an Arizona State Park located in Oak Creek Canyon north of Sedona, Arizona, United States. It takes its name from a natural water slide formed by the slippery bed of Oak Creek. Slide Rock State Park is located on Coco ...
References
External links and references
Schnebly Hill Formation, a few imagesA hiking site on the Schnebly Hill FormationTravels in goeology, Sedona areaRelationship between Schnebly Hill Formation and the Supai GroupOn YouTube video
Sedona, Arizona
Mogollon Rim
Colorado Plateau
Landforms of Coconino County, Arizona
Landforms of Yavapai County, Arizona
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