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Ouch, there's an error in the article. Ouachita are not part of the same range, as that's inland. A poster on the site already pointed that out.
by mrlonglong 4y ago
Ouch, there's an error in the article. Ouachita are not part of the same range, as that's inland. A poster on the site already pointed that out.
- adolph 4y agoIt is called out separately from the Appalachians. Wikipedia cites this article, which is terse enough to not be convincing to my lay eyes. https://archives.datapages.com/data/sepm_sp/SP22/Sedimentary_and_Tectonic_History.htm https://archives.datapages.com/data/sepm_sp/SP22/Sedimentary... This book chapter cites the above and has a picture explanation: https://books.google.com/books?hl=en&lr=&id=DyF3BQAAQBAJ&oi=fnd&pg=PA371&ots=qQxPX78Hta&sig=vS-295osI-KbspoZgBKUdPGxS3g#v=onepage&q&f=false https://books.google.com/books?hl=en&lr=&id=DyF3BQAAQBAJ&oi=...
- mkl 4y agoAlso it's Laurasia (https://en.wikipedia.org/wiki/Laurasia https://en.wikipedia.org/wiki/Laurasia), not Laurussia.
- mkl 4y agoFrom https://earthobservatory.nasa.gov/images/46485/ouachita-mountains-oklahoma https://earthobservatory.nasa.gov/images/46485/ouachita-moun...: > Starting around 340 million years ago, a tectonic plate that had previously been attached to Africa and South America collided with the North American plate. The process helped form the supercontinent of Pangaea, and it thrust the ancient sea floor skyward. The similarities between rock layers of the Ouachita Mountains and the Appalachian Mountains indicate that they were part of a massive mountain chain formed by this collision. Once elevated, the mountains soon commenced eroding. > About 200 million years ago, Pangaea began to break apart. The breakup wrenched apart the supersized mountain range, leaving a wide swath of low-lying land between the Ouachita Mountains in the west and the Appalachian Mountains in the east. Low-profile land persists today across much of the southeastern United States.