Southern Oklahoma Aulacogen
Failed rift in the western and southern US of the triple junction that became the Iapetus Ocean / From Wikipedia, the free encyclopedia
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The Southern Oklahoma Aulacogen (ah-lah-coh-jin)ⓘ is a failed rift, or failed rift arm (aulacogen), of the triple junction that became the Iapetus Ocean spreading ridges. It is a significant geological feature in the Western and Southern United States. It formed sometime in the early to mid Cambrian Period and spans the Wichita Mountains, Taovayan Valley, Anadarko Basin, and Hardeman Basin in Southwestern Oklahoma.[1] The Southern Oklahoma Aulacogen is primarily composed of basaltic dikes, gabbros, and units of granitic rock.[2]
Quick Facts Area, Location ...
Southern Oklahoma Aulacogen | |
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Stratigraphic range: Early to mid Cambrian | |
Area | Approximately 42,500 sq mi (110,000 km2) |
Location | |
Coordinates | 35°N 99.3°W / 35; -99.3. |
Country | United States |
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