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The Bearwallow Mountain Andesite is composed of calc-alkaline volcanic rock ranging from basaltic andesite to dacite, but predominantly andesite.These form a group of low cones or shield volcanoes and range in age from 27 to 23 million years old.
QAPF diagram with basalt/andesite field highlighted in yellow. Andesite is distinguished from basalt by SiO 2 > 52%. Andesite is field O2 in the TAS classification.. Andesite is an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals.
Cane Creek State Park is a 2,053-acre (831 ha) Arkansas state park in Lincoln County, Arkansas in the United States.Straddling the Gulf Coastal Plain and the Mississippi Delta, the park includes the 1,675-acre (678 ha) Cane Creek Lake, a wooded lake which borders Bayou Bartholomew, the world's longest bayou. [2]
Pine forest near Lake Winona (Arkansas); part of Ouachita National Forest. Mammoth Spring: 1972: Fulton: State The largest first magnitude spring in Arkansas, it is connected underground to the Grand Gulf State Park in Missouri. Roaring Branch Research Natural Area
In Arkansas, the aluminum hydroxides in bauxite form small oolites and pea-sized pisolites and outcrop or are located very close to the surface under thin sediments. The resource was first mined in 1898, 11 years after the State Geologist, John Branner, identified it in a sample from Pulaski County, Arkansas .
One of three mountain state parks in the Arkansas River Valley, includes historic cabins, 14 miles (23 km) of hiking trails, and popular hang-gliding launch points. Ozark Folk Center: Stone: 637 acres (258 ha) 1973: None: Located near Mountain View, Arkansas, it preserves the music, culture, and traditions of the Ozark Mountains. Hosts special ...
Crater of Diamonds State Park is a 911-acre (369 ha) Arkansas state park in Pike County, Arkansas, in the United States.The park features a 37.5-acre (15.2-hectare) plowed field, one of the few diamond-bearing sites accessible to the public.
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