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Geology.AR.Gov. 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 ...
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 ...
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 ...
Stanley Shale. The Stanley Shale, or Stanley Group, is a Mississippian stratigraphic unit in the Ouachita Mountains of Arkansas and Oklahoma. First described in Arkansas in 1892, [4] this unit was not named until 1902 by J.A. Taff in his study of the Ouachita Mountains of Oklahoma. [3] Taff assigned the town of Stanley in Pushmataha County ...
v. t. e. Crowley's Ridge (also Crowleys Ridge) is a geological formation that rises 250 to 550 feet (170 m) above the alluvial plain of the Mississippi embayment in a 150-mile (240 km) line from southeastern Missouri to the Mississippi River near Helena, Arkansas. It is the most prominent feature in the Mississippi Alluvial Plain between Cape ...
2404393 [2] North Little Rock (often abbreviated "NLR") is a city in Pulaski County, Arkansas, United States. It is the twin city of Little Rock. The population was 64,591 at the 2020 Census, making it the seventh-most populous city in Arkansas. The city has been experiencing significant beautification efforts over the past few years, resulting ...
The Fayetteville Shale is a geologic formation of Mississippian age (354–323 million years ago) composed of tight shale within the Arkoma Basin of Arkansas and Oklahoma. [4] [7] It is named for the city of Fayetteville, Arkansas, and requires hydraulic fracturing to release the natural gas contained within.
Quinn first presented on the fossils in 1973 at the Geological Society of America Meeting in Little Rock, Arkansas. In March 1973, Dr. James Harrison Quinn and Benjamin Clardy of the Arkansas Geological Commission went to the area on the Friday farm where the remains had been discovered, hoping to find more remains.
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