shaly siltstone

См. также в других словарях:

• Siltstone — is a sedimentary rock which has a composition intermediate in grain size between the coarser sandstones and the finer mudstones and shales. Description As its name implies, it is primarily composed (greater than 2/3) of silt sized particles,… …   Wikipedia

• Ishbel Group — Stratigraphic range: Permian …   Wikipedia

• Geology of the Grand Canyon area — The geology of the Grand Canyon area exposes one of the most complete sequences of rock anywhere, representing a period of nearly 2 billion years of the Earth s history in that part of North America. The major sedimentary rock layers exposed in… …   Wikipedia

• Mannville Group — Stratigraphic range: Early Cretaceous …   Wikipedia

• Geology of the Death Valley area — The exposed geology of the Death Valley area presents a diverse and complex story that includes at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related… …   Wikipedia

• Marcellus Formation — Stratigraphic range: Middle Devonian …   Wikipedia

• Boston Mountains — The Boston Mountains area is a high and deeply dissected plateau located in northern Arkansas and eastern Oklahoma. The Oklahoma portion of the range is locally referred to as the Cookson Hills. The rocks of the region are essentially little… …   Wikipedia

• Dos Cuadras Offshore Oil Field — The four oil platforms drilling into the Dos Cuadras Field, as seen from Summerland, California. They are, in order from left to right: Platforms Hillhouse, A , B , and C . The Dos Cuadras Offshore Oil Field is a large oil and gas field… …   Wikipedia