Pioche Formation | |
---|---|
Stratigraphic range: Cambrian | |
Type | Formation |
Location | |
Region | Utah and Nevada |
Country | United States |
The Pioche Formation is a geologic formation in Utah and Nevada. It preserves fossils dating back to the Cambrian period. [1] [2]
Pioche is an unincorporated town in Lincoln County, Nevada, United States, approximately 180 miles (290 km) northeast of Las Vegas. U.S. Route 93 is the main route to Pioche and bypasses the town center just to the east, with Nevada State Route 321 and Nevada State Route 322 providing direct access. Its elevation is 6,060 feet (1,850 m) above sea level. Pioche is the county seat of Lincoln County. Pioche is named after François Louis Alfred Pioche, a San Francisco financier and land speculator originally from France. The town's population was 1,002 at the 2010 census.
The Highland Range is a mountain range in Lincoln County, Nevada. Nearby ranges include the Bristol Range to the north, the West Range to the northwest, the Ely Springs Range to the west, the Black Canyon Range to the southwest, the Chief Range to the south and the Pioche Hills to the east.
The Pioche Hills are a mountain range in Lincoln County, Nevada. The historic Pioche silver mining district is centered in the Pioche Hills and extends into the adjacent Bristol and Highland Ranges to the west.
The Peedee Formation is a geologic formation in North and South Carolina. A marine deposit, named for exposures along the Great Peedee River, it preserves belemnites and foraminifera fossils dating to the Late Cretaceous (Maastrichtian). The formation is notable for its occurrence of Belemnitella americana, known as the Pee Dee Belemnite (PDB), a long-standing standard in stable carbon isotope research. A single pterosaur femur, possibly an Azhdarchid, from the Peedee formation is one of the few pterosaur body fossils found in Eastern North America.
The Notch Peak Formation is a geologic formation in Utah. It preserves fossils dating back to the Cambrian period.
The Dunderberg Shale is a geologic formation in Nevada and Utah.
The Deseret Limestone, also known as the Pine Canyon Formation, is a geologic formation in Utah. It was formed by the Panthalassa ocean around 340 Ma. It preserves marine fossils dating back to the Carboniferous period or Mississippian age, mostly consisting of tabulate and rugose corals, and other marine invertebrates; vertebrates are represented by conodonts. The Deseret is a 500-foot thick layer of dolomitic limestone with chert, with a basal layer of black shale that is host rock for many Utah caves such as Timpanogos Cave National Monument.
The Ely Limestone is a geologic formation in Nevada and Utah. It preserves fossils dating back to the Carboniferous period.
The Lehman Formation is a geologic formation in Utah. It preserves fossils dating back to the Ordovician period.
The Fish Haven Dolomite is an Ordovician period geologic formation in southern Idaho, northeastern Nevada, and northwestern Utah.
The Ely Springs Dolomite is an Ordovician period geologic formation in the Southwestern United States.
The Arcturus Formation is a geologic formation in Nevada and Utah, United States. It preserves fossils dating back to the Permian period.
The Virgin Formation is a geologic formation in Utah. It preserves fossils dating back to the Triassic period.
The Thaynes Group, Thaynes Formation in older literature, is a geologic group in eastern Idaho, western Wyoming, Utah and eastern Nevada. It includes the Sinbad Formation, Virgin Formation and Shnabkaib Formation. The Thaynes Group is of marine origin. Its formations are interbedded with layers of the non-marine Moenkopi Group.
The Muddy Creek Formation is a geologic formation in Arizona, California, Nevada, and Utah. It preserves fossils dating back to the Neogene period.
The Carrara Formation is a geologic formation in Nevada. It preserves fossils dating back to the Cambrian period.
The Wood Canyon Formation is a geologic formation in the northern Mojave Desert of Inyo County, California and Nye County and Clark County, Nevada.
The Kanosh Formation is a geologic formation in Utah and Nevada. It preserves fossils dating back to the Middle Ordovician period.
The Lone Mountain Dolomite is a dolomite geologic formation in Nevada.
The Tulare Formation is a Pliocene to Holocene epoch geologic formation in the central and southern San Joaquin Valley of central California.