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Brentwood Limestone Member In the eastern parts of the Ozarks in Arkansas, the Bloyd Formation becomes undifferentiated with the underlying Hale Formation and is called the Witts Springs Formation . Paleontology
Limestone mining for the cement industry is a major threat to the Caves of Meghalaya, [4] causing a major collapse of the Krem Mawmluh cave, the seventh longest cave in the state of Meghalaya. The "cave-in" stimulated public awareness of the potential threat mining places to the rich scientific, tourism and ecological heritage.
The Batesville Sandstone is a geologic formation in northern Arkansas, United States, that dates to the Chesterian Series of the late Mississippian. The base of the Batesville Sandstone, named the Hindsville Limestone Member , unconformably lies on the Moorefield Formation .
Paleontology in Arkansas refers to paleontological research occurring within or conducted by people from the U.S. state of Arkansas. The fossil record of Arkansas spans from the Ordovician to the Eocene. [1] Nearly all of the state's fossils have come from ancient invertebrate life. [1] During the early Paleozoic, much
The name was introduced in 1921 by Hugh Dinsmore Miser in his study of Arkansas, replacing part of the upper St. Clair Limestone. [3] Miser designated a type locality at Tate Spring, located 1.25 miles north of the site of the old Penters Bluff railroad station in Izard County, Arkansas, however, he did not assign a stratotype. As of 2017, a ...
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.
Washington: 670: Gene Rush WMA Newton, Searcy: 17,963: Greers Ferry Lake WMA Cleburne, Van Buren: 9,914: Gum Flats WMA Howard, Pike: 15,661: H. E. Flanagan Prairie Natural Area WMA Franklin: 457: The Arkansas Natural Heritage Commission (ANHC), a division of the Department of Arkansas Heritage added the property in 1988. [25]
Location of Washington County in Arkansas. This is a list of the National Register of Historic Places listings in Washington County, Arkansas.. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Washington County, Arkansas, United States.