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Shaded relief map of the Llano Estacado. Texas contains a wide variety of geologic settings. The state's stratigraphy has been largely influenced by marine transgressive-regressive cycles during the Phanerozoic, with a lesser but still significant contribution from late Cenozoic tectonic activity, as well as the remnants of a Paleozoic mountain range.
Cretaceous Formations of the Dallas-Fort Worth Metroplex Geologic map and the labeled geologic formations that lie directly beneath the surface in Dallas County Cretaceous formations of Texas Where the DFW Metroplex was located during the last super continent known as Pangea Placement of Tectonic Plates and DFW location around ≈94 million years ago The Cretaceous rocks in the DFW Metroplex ...
This article contains a list of fossil-bearing stratigraphic units in the state of Texas, U.S. Sites. Group or Formation ... "U.S. Geologic Names Lexicon ("Geolex ...
Petroleum geology and the distribution of conventional crude oil, natural gas, and natural gas liquids, East Texas basin, USGS Open-File Report 88-450K Author R.Q. Foote, L.M. Massingill, and R.H. Wells
Geologic map of Dallas, with Woodbine at left. Woodbine Formation stratigraphic column in Texas The Woodbine Group is a geological formation in east Texas whose strata date back to the Early to Middle Cenomanian age of the Late Cretaceous . [ 1 ]
The Arroyo Formation, sometimes termed the Lower Clear Fork Formation, is a geologic formation in Texas. [1] It preserves fossils dating back to the Kungurian stage of the Permian period. [2] It is the lower-most portion of the Clear Fork Group, part of a series of fossiliferous Permian strata in the south-central United States known as the red ...
Trinity Group stratigraphic column in Texas. The Trinity Group is a group (sequence of rock strata) in the Lower Cretaceous lithostratigraphy of Texas, Arkansas, Mississippi, Louisiana and Oklahoma. [2] [3] [4] It is named for the Trinity River of Texas.
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.