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The Arkansas Geological Survey (AGS), formerly the Arkansas Geological Commission (AGC), is a government agency of the State of Arkansas. It is responsible for the investigation of the geology, geologic processes, and geologic resources within the state. It encourages the considered management and utilization of the state's mineral, fossil-fuel ...
Geology of Arkansas. The geology of Arkansas includes deep 1.4 billion year old igneous crystalline basement rock from the Proterozoic known only from boreholes, overlain by extensive sedimentary rocks and some volcanic rocks. The region was a shallow marine, riverine and coastal environment for much of the early Paleozoic as multi-cellular ...
David Dale Owen. David Dale Owen (24 June 1807 – 13 November 1860) was a prominent American geologist who conducted the first geological surveys of Indiana, Kentucky, Arkansas, Wisconsin, Iowa and Minnesota. Owen served as the first state geologist for three states: Kentucky (1854–57), Arkansas (1857–59), and Indiana (1837–39 and 1859 ...
The history of slavery in Arkansas began in the 1790s, before the Louisiana Purchase made the land territory of the United States. [1] Arkansas was a slave state from its establishment in 1836 until the Thirteenth Amendment of the U.S. Constitution was ratified in 1865. [1] Slaveholders were initially clustered in the eastern and southern ...
Named by. Robert Thomas Hill. The Annona Chalk is a geologic formation in Arkansas, Texas, Louisiana, and Oklahoma. [2] It preserves fossils dating back to the Cretaceous period. The formation is a hard, thick-bedded to massive, slightly fossiliferous chalk. It weathers white, but is blue-gray when freshly exposed.
The geography of Arkansas varies widely. The state is covered by mountains, river valleys, forests, lakes, and bayous in addition to the cities of Arkansas. Hot Springs National Park features bubbling springs of hot water, formerly sought across the country for their healing properties. [1] [2] Crowley's Ridge is a geological anomaly rising ...
Aerial view of the Varner and Cummins units, U.S. Geological Survey, February 28, 2001. The Varner Unit is a high-security state prison for men of the Arkansas Department of Correction in Varner, Choctaw Township, unincorporated Lincoln County, Arkansas, United States.
United States Geological Survey (USGS) / 38.9470; -77.3675. The United States Geological Survey ( USGS ), founded as the Geological Survey, is an agency of the United States government whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United ...