Supai Group

rdf:langString Supai Group

rdf:langString Supai Group

rdf:langString Pennsylvanian–Lower Permian,

rdf:langString Example Supai red beds, north projecting ridgeline, South Rim, Grand Canyon

rdf:langString Pennsylvanian

rdf:langString approximate maximum

rdf:langString 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 Supai Group is especially exposed throughout the Grand Canyon in northwest Arizona, as well as local regions of southwest Utah, such as the Virgin River valley region. It occurs in Arizona at Chino Point, Sycamore Canyon, and famously at Sedona as parts of Oak Creek Canyon. In the Sedona region, it is overlain by the Hermit Formation, and the colorful Schnebly Hill Formation. The Supai Group is coeval with the Hermosa Group of east and south Utah; the Hermosa Group extended southeastwards from Utah to Durango, extreme southwest Colorado, and adjacent to the Hermosa type section. The Supai Group was originally designated as the Supai Formation by N.H. Darton in 1910 for exposures at Supai, Arizona. It was first raised to group stratigraphic rank by E.H. McKee in 1975, though it remains at formation rank at other locations where its subunits are difficult to distinguish.

rdf:langString N.H. Darton