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The Saratoga Chalk is a geologic formation in Arkansas. [1] It preserves fossils dating back to the Cretaceous period, ...
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 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 unit is commercially mined for cement.
Initially, Arkansas bauxite met 90% of US aluminum demand. Underground mining before and during World War II gave way to open pit mining in the 1960s. During the war, up to six million tons were mined in 1943. Arkansas bauxite mines were often passed over in favor of higher quality bauxite reserves in the Caribbean and mining ceased in 1982.
Plum Bayou Mounds Archeological State Park (), formerly known as "Toltec Mounds Archeological State Park", [3] also known as Knapp Mounds, Toltec Mounds or Toltec Mounds site, is an archaeological site from the Late Woodland period in Arkansas that protects an 18-mound complex with the tallest surviving prehistoric mounds in Arkansas.
Parkin Archeological State Park, also known as Parkin Indian Mound, is an archeological site and state park in Parkin, Cross County, Arkansas.Around 1350–1650 CE an aboriginal palisaded village existed at the site, at the confluence of the St. Francis and Tyronza rivers.
The following are tallies of current listings in Arkansas on the National Register of Historic Places. These counts are based on entries in the National Register Information Database as of April 24, 2008 [2] and new weekly listings posted since then on the National Register of Historic Places web site. [3]
Archaeological sites on the National Register of Historic Places in Arkansas (1 C, 56 P) M. Mounds in Arkansas (17 P) P. Petroglyphs in Arkansas (7 P)