Taconic orogeny
E87792
The Taconic orogeny was an early Paleozoic mountain-building event along the eastern margin of ancient North America that contributed significantly to the formation of the Appalachian Mountains.
Aliases (2)
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geological event
→
mountain-building event → orogeny → |
| affects |
Appalachian Basin
→
New England → New York → Newfoundland → Pennsylvania → Quebec → |
| associatedWith |
Blountian tectophase
→
Taconic volcanic arc → closure of the Iapetus Ocean → |
| causedBy |
collision of island arcs with Laurentia
→
subduction of the Iapetus Ocean plate beneath Laurentia → |
| continentInvolved |
Laurentia (ancient North America)
→
|
| contributedTo |
formation of the Appalachian Mountains
→
|
| endTime |
Early Silurian
→
around 440 million years ago → |
| follows |
early rifting of the Iapetus Ocean
→
|
| geologicalAge |
Early Paleozoic
→
|
| locatedIn |
Laurentia
→
eastern margin of ancient North America → present-day Appalachian region → |
| namedAfter |
Taconic Mountains
→
|
| partOf |
Appalachian orogeny
→
|
| peakActivity |
Middle to Late Ordovician
→
|
| period |
Ordovician
→
|
| precedes |
Acadian orogeny
→
|
| produced |
Taconic clastic wedge
→
flysch deposits → fold-and-thrust belts → foreland basin subsidence → magmatic arcs → molasse deposits → regional metamorphism → thick clastic wedge deposits → |
| recordedIn |
Ordovician sedimentary rocks of the Appalachian Basin
→
metamorphic rocks of New England → structural fabrics of the Appalachian fold-and-thrust belt → |
| resultedIn |
angular unconformities in the Appalachian region
→
crustal thickening along eastern Laurentia → development of an accretionary prism → emplacement of ophiolites → uplift of the proto-Appalachian Mountains → |
| significance |
major early Paleozoic orogenic phase of the Appalachian Mountains
→
|
| startTime |
Late Cambrian
→
around 490 million years ago → |
| tectonicSetting |
convergent plate margin
→
|
Referenced by (8)
| Subject (surface form when different) | Predicate |
|---|---|
|
Acadian orogeny
→
|
follows |
|
Taconic Mountains
→
|
formedBy |
|
Taconic Mountains
("Taconic orogeny belt")
→
|
geologicalProvince |
|
Appalachian orogeny
→
|
hasPart |
|
Appalachian orogeny
→
|
orogenyPhase |
|
closure of Iapetus Ocean
→
|
partOf |
|
Caledonian orogeny
→
|
precededBy |
|
Taconic orogeny
("Taconic clastic wedge")
→
|
produced |