Ouachita orogeny
E92147
The Ouachita orogeny was a major Paleozoic mountain-building event that formed the Ouachita Mountains of Arkansas, Oklahoma, and adjacent regions through the collision of ancient continental plates.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| Ouachita Fold and Thrust Belt | 1 |
| Ouachita Uplift | 1 |
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Paleozoic mountain-building event
ⓘ
orogeny ⓘ |
| affected |
Arkoma Basin
ⓘ
Ouachita orogeny self-linksurface differs ⓘ
surface form:
Ouachita Fold and Thrust Belt
|
| associatedWith |
development of foreland basins
ⓘ
hydrocarbon-bearing basins in the Arkoma region ⓘ |
| cause |
closure of the Rheic Ocean
ⓘ
collision of Laurentia with Gondwana-related continental blocks ⓘ |
| chronostratigraphicRange | Late Mississippian to Early Permian ⓘ |
| continent | North America ⓘ |
| deformed |
Paleozoic deep-marine sedimentary sequences
ⓘ
turbidite deposits ⓘ |
| formed | Ouachita Mountains ⓘ |
| geologicalAge | approximately 330–280 million years ago ⓘ |
| geologicalPeriod |
Late Paleozoic
ⓘ
Mississippian ⓘ Pennsylvanian ⓘ |
| locatedIn | southern margin of Laurentia ⓘ |
| namedAfter | Ouachita Mountains ⓘ |
| occurredIn |
Arkansas
ⓘ
Oklahoma ⓘ Texas ⓘ adjacent regions of the southern United States ⓘ southeastern Oklahoma ⓘ western Arkansas ⓘ |
| orogenyType | collisional orogeny ⓘ |
| overlapsWith | Appalachian–Ouachita–Marathon orogenic system ⓘ |
| partOf | assembly of Pangea ⓘ |
| plateInvolved |
Gondwana-derived terranes
ⓘ
Laurentia ⓘ |
| precededBy | subsidence of a passive continental margin along southern Laurentia ⓘ |
| region | south-central United States ⓘ |
| relatedTo |
Appalachian orogeny
ⓘ
surface form:
Alleghanian orogeny
Appalachian orogeny ⓘ Marathon orogeny ⓘ |
| result |
crustal shortening
ⓘ
folding of sedimentary rocks ⓘ thrust faulting ⓘ uplift of the Ouachita Mountains ⓘ |
| significance | records late Paleozoic continental collision along the southern margin of North America ⓘ |
| structuralStyle | thin-skinned fold-and-thrust belt ⓘ |
| tectonicSetting | convergent plate margin ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ouachita Fold and Thrust Belt
this entity surface form:
Ouachita Uplift