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The Penters Chert is a Devonian geologic formation in the Ozark Plateaus of Arkansas. Its thickness ranges up to 90'. [3] The name was introduced in 1921 by Hugh Dinsmore Miser in his study of Arkansas. [5] Miser designated a type locality near the old Penters Bluff railroad station in Izard County, Arkansas, however, he did not assign a ...
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 life became commonplace.
Devil's Den State Park is a 2,500-acre (1,000 ha) Arkansas state park in Washington County, near West Fork, Arkansas in the United States. The park was built by the Civilian Conservation Corps, beginning in 1933. Devil's Den State Park is in the Lee Creek Valley in the Boston Mountains, which are the southwestern part of The Ozarks. The park ...
Collapse breccia (Everton Formation, Middle Ordovician; Rush Creek District, Arkansas, USA) 1. The Everton Formation is a geologic formation in northern Arkansas through Missouri, Illinois and Indiana that dates to the middle Ordovician Period. [3] It was named by Ulrich (1907) for exposures found around Everton, Arkansas.
Crystal River Tourist Camp (formerly Crystal River Cave Court, today Cave Courts Motel) is a motor inn built in 1932 in Cave City, Arkansas. It is the oldest operating motor court in the state. [ 2 ] It is built of fieldstones from the Ozarks .
This list of the Paleozoic life of Arkansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arkansas and are between 541 and 252.17 million years of age.
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The Morrow Formation is a geologic formation from the Pennsylvanian geological age that is found in locations ranging from Southeast New Mexico and West Texas to locations in Oklahoma, Southwestern Kansas, and Arkansas. [1] [2] It preserves fossils dating back to the Carboniferous period.