The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley , within Kern County, California .
5-575: The Kern River Series is divided into the lower Chanac Formation unit, and the upper Kern River Beds Formation unit, with the wedge of the Etchegoin Formation in the middle in the western section. It is composed of sandstone and cobble conglomerate . It overlies the Miocene period Santa Margarita Formation . It preserves fossils dating back to the Neogene period . This article about
10-495: A roughly crescent-shaped belt, about 12 miles (19 km) wide at its widest, from Caliente Creek on the south to the Terra Bella vicinity on the north, a length of around 50 miles (80 km). It ranges from 500–2,600 feet (150–790 m) in thickness. Where it does not outcrop , it is overlaid by Pleistocene Period alluvium . The Kern River Series is composed of non-marine gravels, sands, and clays unconformably overlying
15-764: A section of the formation north of the Kern River Bluffs and Bakersfield . The producing interval in the Kern River Formation of the Kern River oil field has been divided into two zones separated by water-bearing sand lentils. The lower producing zone is called the China Grade Zone, and the upper is the Kern River Zone. The Kern River Beds Formation preserves fossils dating back to the Neogene Period of
20-593: A specific stratigraphic formation in California is a stub . You can help Misplaced Pages by expanding it . This article related to the Neogene period is a stub . You can help Misplaced Pages by expanding it . Kern River Beds The Kern River Beds Formation is a Neogene Period geologic formation in the southeastern San Joaquin Valley , within Kern County, California . The Kern River Beds Formation crops out in
25-779: The marine Miocene Period rocks in the Kern River area of the San Joaquin Valley. The Kern River Series is divided into an upper unit, the Kern River Beds Formation, and a lower unit named the Chanac Formation , with the wedge of the Etchegoin Formation in the middle in the central and western sections. The Kern River Beds consists mostly of pale-yellow to light-brown sandstone and conglomerate , with interbeds of greenish-gray or greenish-brown siltstone and mudstone. The Kern River Oil Field wells are located on
#970029