The ChalkButteFormation is a geologic formation in Oregon. It preserves fossils dating back to the Neogene period. The following fossils have been reported...
Fossilworks.org ChalkButteFormation at USGS ChalkButteFormation publications at USGS Drewsey Formation at Fossilworks.org Drewsey Formation at USGS McKay...
west where the Chalk Bluffs form the eastern edge. The Buttes are a consolidation of several geological ages. The main mass of the butte is the lower half...
also found in the overlying Eutaw Formation. Subsidence and sea level rise resulted in the deposition of the chalk and limestone of the Selma Group. Natural...
Lava Butte is a cinder cone in central Oregon, United States, just west of U.S. Route 97 between the towns of Bend, and Sunriver in Deschutes County....
Powell Butte is an extinct cinder cone butte in Portland, Oregon, United States. It is part of the Boring Lava Field, which includes more than 80 small...
Protostega gigas in the Kansas chalk in 1871. A variety of bones were found in yellow cretaceous chalk from a bluff near Butte Creek. The Late Cretaceous...
contains many shark teeth fossils; and the Niobrara Formation, which is composed mainly of chalk. These outer ridges are called cuestas. The preceding...
Pelican Butte is a steep-sided shield volcano in the Cascade Range of southern Oregon. It is located 28 miles (45 km) due south of Crater Lake and 12...
1872 at Butte Creek in Logan County, Kansas. This location is now recognized as falling between Marker Units 15 and 19 of the Smoky Hill Chalk geological...
Formations, Montana Ferris Formation, Wyoming Eocene Fossil Butte Member, Green River Formation, Wyoming, United States "Cimolestes". p. 189. in Palmer,...
Arikareean Chalk Canyon Formation, Arizona Diligencia, Sespe & Tick Canyon Formations, California Arikaree Formation, North Dakota John Day Formation, Oregon...
fossil material of Hutchemys rememdium from the Sentinel Butte and Bullion Creek formations of the Fort Union Group (North Dakota, United States), including...
Rocky Butte (previously known as Mowich Illahee and Wiberg Butte) is an extinct cinder cone butte in Portland, Oregon, United States. It is also part...
Switzerland CLG Chalair Aviation CHALLAIR France OP CHK Chalk's International Airlines CHALKS United States CLS Challenge Air Transport AIRISTO Germany...
Olallie Butte is a steep-sided shield volcano in the Cascade Range of the northern part of the U.S. state of Oregon. It is the largest volcano and highest...
volcanic plugs. Known subfeatures include two shield volcanoes, Maxwell Butte (less eroded than Three Fingered Jack) and Turpentine Peak, which have elevations...
The Pierre Shale is a geologic formation or series in the Upper Cretaceous which occurs east of the Rocky Mountains in the Great Plains, from Pembina...
Roxy Ann Peak, also known as Roxy Ann Butte, is a 3,576-foot-tall (1,090 m) mountain in the Western Cascade Range at the eastern edge of Medford, Oregon...
Mountain Basin and Range & Eastern Oregon Big Hole Black Hills Chalk Basin Clarks Butte Clarno Unit Devils Garden Volcanic Field Dooley Mountain Diamond...
for steep chalk and limestone escarpments and cliffs of height up to 350m, often around flat-top elevations Cryoplanation terrace – Formation of plains...
Mountain Basin and Range & Eastern Oregon Big Hole Black Hills Chalk Basin Clarks Butte Clarno Unit Devils Garden Volcanic Field Dooley Mountain Diamond...
The Florissant Formation is a sedimentary geologic formation outcropping around Florissant, Teller County, Colorado. The formation is noted for the abundant...
Hayrick Butte is a tuya, a type of subglacial volcano, in Linn County, Oregon. Located in the Willamette National Forest near Santiam Pass, it lies adjacent...
likely between 50,000 and 10,000 years old. It is certainly older than the formation of Crater Lake as ash from the eruption of Mount Mazama overlays the Devils...
Mountain Basin and Range & Eastern Oregon Big Hole Black Hills Chalk Basin Clarks Butte Clarno Unit Devils Garden Volcanic Field Dooley Mountain Diamond...
which the same formation is exposed. Such sites may have separate entries if they are considered to be more notable than the formation as a whole. In...
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