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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 ...
J.A. Taff [1] Named after Atoka County, Oklahoma, the Atoka Formation is a geologic formation in central and western Arkansas, eastern Oklahoma, central and western Texas, and eastern New Mexico. [2] It is the surface rock of the Boston Mountains and dominates exposures in the Frontal Ouachita Mountains of the Arkansas River Valley. [2]
Wikimedia Commons has media related to Fayetteville Shale. 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 ...
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 ...
Hale Formation. The Hale Formation is a geologic formation in northern Arkansas that dates to the Morrowan Series of the early Pennsylvanian. [3] The Hale Formation has two named members: the Cane Hill and the Prairie Grove Members. The lower member is the Cane Hill, a primarily sandstone and shale interval that unconformably overlies the ...
Named for. Bloyd Mountain, Washington County, Arkansas [4] Named by. Albert Homer Purdue. The Bloyd Formation, or Bloyd Shale, is a geologic formation in Arkansas. It preserves fossils dating back to the Carboniferous period .
The Collier Shale is a geologic formation in the Ouachita Mountains of Arkansas and Oklahoma.Dating from the Late Cambrian to Early Ordovician periods, the Collier Shale is the oldest stratigraphic unit exposed in Arkansas.
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