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  2. Grayburg Formation - Wikipedia

    en.wikipedia.org/wiki/Grayburg_Formation

    The formation was first defined by Robert I. Dickey in 1940 based on well logs. Dickey assigned the formation to the now-defunct Whitehorse Group. [1] D.B. Tait, W.S. Motts, and M.E. Spitler reassigned the formation to the Artesia Group in 1962. [4]

  3. Geology of Texas - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Texas

    Texas is approximately bisected by a series of faults that trend southwest to northeast across the state, from the area of Uvalde to Texarkana.South and east of these faults, the surface exposures consist mostly of Cenozoic sandstone and shale strata that grow progressively younger toward the coast, indicative of a regression that has continued from the late Mesozoic to the present.

  4. Permian Basin (North America) - Wikipedia

    en.wikipedia.org/wiki/Permian_Basin_(North_America)

    The westward-dipping Midland Basin is subdivided into several formations (figure 4) and is composed of laminated siltstone and sandstone. The Midland Basin was filled by a large subaqueous delta that deposited clastic sediment into the basin. Aside from clastic sediment, the Midland Basin also contains carbonate deposits originating from the ...

  5. Llano Estacado - Wikipedia

    en.wikipedia.org/wiki/Llano_Estacado

    The Comanche war trail extended from Llano Estacado to the Rio Grande into Chihuahua, "the trail ran southwesterly through Big Spring to the Horsehead Crossing of the Pecos River, then forked southward to the Comanche Springs where it divided, one part of the trail crossing the great river near Boquillas and the other at Presidio." [17]: 122

  6. National Register of Historic Places listings in Midland ...

    en.wikipedia.org/wiki/National_Register_of...

    This is intended to be a complete list of properties and districts listed on the National Register of Historic Places in Midland County, Texas. There are five properties listed on the National Register in the county including two that are Recorded Texas Historic Landmarks .

  7. Geology of the Dallas–Fort Worth Metroplex - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Dallas...

    The Ozan marl is around 500 ft thick, and marine megafossils can be found. On top of the Ozan marl is two thin beds known as the Wolfe City Sandstone and Pecan Gap Chalk. The Wolfe City Sandstone is known in the city of Rockwall, Texas for its sandstone dikes that protrude into the surface, and gives a surface expression of a wall built of ...

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Spraberry Trend - Wikipedia

    en.wikipedia.org/wiki/Spraberry_Trend

    Location of the Spraberry Trend in Texas, showing major and nearby cities. Black lines are county boundaries. The Spraberry Trend (also known as the Spraberry Field, Spraberry Oil Field, and Spraberry Formation; sometimes erroneously written as Sprayberry) is a large oil field in the Permian Basin of West Texas, covering large parts of six counties, and having a total area of approximately ...