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Montney Formation. The Montney Formation is a stratigraphical unit of Lower Triassic age in the Western Canadian Sedimentary Basin in British Columbia and Alberta.. It takes the name from the hamlet of Montney and was first described in Texaco's Buick Creek No. 7 well by J.H. Armitage in 1962. [3]
Hypothetical cross-section of a river valley showing different types of benches. They include structural benches (sb) formed by the differential erosion of shale beds overlying limestone beds. Also, they include benches in the form of narrow strath terraces (st), fill terraces (ft), and cut terraces (ct) underlain by fluvial sediments.
As the basin fills up, shallow-water sandstones and continental deposits form. [3] [4] Most of the resulting rocks have little deformation, but near the edge of the mountain chain they can be subject to folding and thrusting. [3] After the basin fills up, continental sediments are deposited on top of the flysch. [4]
Eagle Ford stratigraphic column Outcrop of the Eagle Ford and Austin Chalk Contact off Kiest Blvd, 1/2 mile east of Patriot Pky in Dallas County. The Eagle Ford Group (also called the Eagle Ford Shale) is a sedimentary rock formation deposited during the Cenomanian and Turonian ages of the Late Cretaceous over much of the modern-day state of Texas.
The Chattanooga Shale is a member of the Devonian Shale-Middle and Upper Paleozoic Total Petroleum System (TPS) stretching from New York to Tennessee that comprises six large petroleum systems. Such systems span Cambrian to Pennsylvanian intervals, and the Chattanooga Shale feeds much of the Appalachian Basin's oil and gas.
The Vaca Muerta Shale is a continuous tight oil and shale gas reservoir of Late Jurassic and Early Cretaceous age. The formation covers a total area of 30,000 square kilometres (12,000 sq mi). [10] The shale is at a depth of about 9,500 feet (2,900 m), where it has been found productive of oil and gas.
AOL
This encloses much fluid which under pressure causing the whole shale bed to turn into a viscous, low density, high mobility layer. The over-pressured shale layers trigger and initiate the growth faults in the same way as the evaporite layers does. [6] Earthquakes arise and result from the release of the force along the growth fault plane. [12]