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Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO 3) or dolomite (CaMg (CO 3) 2) that have recrystallized under the influence of heat and pressure. [1] It has a crystalline texture, and is typically not foliated (layered), although there are exceptions. In geology, the term marble refers to metamorphosed ...
Geology of Texas. 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.
Llano Uplift. Precambrian and Paleozoic inlier surrounded by Cretaceous uplands. The Llano Uplift is a geologically ancient, low geologic dome that is about 90 miles (140 km) in diameter and located mostly in Llano, Mason, San Saba, Gillespie, and Blanco counties, Texas. It consists of an island-like exposure of Precambrian igneous and ...
Trans-Pecos. The Trans-Pecos, as originally defined in 1887 by the Texas geologist Robert T. Hill, is the distinct portion of Texas that lies west of the Pecos River. [1] The term is considered synonymous with Far West Texas, a subdivision of West Texas. [2] The Trans-Pecos is part of the Chihuahuan Desert, the largest desert in North America.
2411030 [2] Website. ci.marble-falls.tx.us. Marble Falls is a city in Burnet County, Texas, United States. As of the 2020 United States Census, the city population was 7,037. Lake Marble Falls is part of the Highland Lakes on the Colorado River, the largest chain of lakes in Texas. [4] Marble Falls was founded by Adam Rankin Johnson [5] in 1887 ...
History of Texas. Indigenous people lived in what is now Texas more than 10,000 years ago, as evidenced by the discovery of the remains of prehistoric Leanderthal Lady. In 1519, the arrival of the first Spanish conquistadors in the region of North America now known as Texas found the region occupied by numerous Native American tribes.
Website. www.tshaonline.org /home. The Texas State Historical Association (TSHA) is an American nonprofit educational and research organization dedicated to documenting the history of Texas. It was founded in Austin, Texas, United States, on March 2, 1897. In November 2008, the TSHA moved its offices from Austin to the University of North Texas ...
The history of Texas, particularly of the old independent Republic of Texas, is intimately bound up with its present culture. Frontier Texas! is a museum of the American Old West in Abilene. Texas is also home to many historical societies, such as: The Texas Historical Commission, an agency dedicated to historic preservation within the state of ...