Taconic volcanic arc
E413461
The Taconic volcanic arc was an ancient chain of volcanoes active along the eastern margin of ancestral North America during the Ordovician period, whose collision and accretion played a key role in building the early Appalachian Mountains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Taconic volcanic arc canonical | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
paleovolcanic arc
ⓘ
volcanic arc ⓘ |
| approximateAgeMa | 490–440 ⓘ |
| associatedWith |
arc-related plutonism in the Appalachian region
ⓘ
high-pressure metamorphism in accretionary complexes ⓘ subduction of Iapetus Ocean lithosphere ⓘ |
| collisionWith |
North American continental margin
ⓘ
surface form:
Laurentian continental margin
|
| contributedTo | Appalachian Mountains ⓘ |
| geodynamicEnvironment |
migrating magmatic arc
ⓘ
oceanic island arc ⓘ |
| geologicalPeriod |
Ordovician Period
ⓘ
surface form:
Ordovician
|
| hasRockTypes |
metamorphosed volcanic rocks
ⓘ
plutonic rocks ⓘ volcanic rocks ⓘ |
| influenced | foreland basin development along eastern Laurentia ⓘ |
| locatedOn |
eastern margin of Laurentia
ⓘ
eastern margin of ancestral North America ⓘ |
| orogeny | Taconic orogeny ⓘ |
| partOf | Taconic orogeny ⓘ |
| precedes |
Acadian orogeny
ⓘ
Appalachian orogeny ⓘ
surface form:
Alleghanian orogeny
|
| presentIn |
New England region
ⓘ
New York region ⓘ Newfoundland and Labrador ⓘ
surface form:
Newfoundland region
Quebec region ⓘ |
| preservedAs |
arc-derived sedimentary sequences
ⓘ
metavolcanic rocks ⓘ |
| produced |
andesitic volcanic rocks
ⓘ
basaltic volcanic rocks ⓘ volcanic island arc rocks ⓘ volcaniclastic sediments ⓘ |
| relatedTectonicEvent | thrusting and stacking of Appalachian terranes ⓘ |
| relatedTo | closure of the Iapetus Ocean ⓘ |
| roleIn | early construction of Appalachian Mountains ⓘ |
| significance |
key to understanding early Appalachian mountain building
ⓘ
records early Paleozoic convergent margin magmatism along Laurentia ⓘ |
| studiedInDiscipline |
paleogeography
ⓘ
stratigraphy ⓘ tectonics ⓘ |
| successor | later Appalachian orogenic events ⓘ |
| tectonicProcess |
accretion to Laurentia
ⓘ
arc–continent collision ⓘ |
| tectonicSetting | convergent plate margin ⓘ |
| timeSpan |
Early Ordovician
ⓘ
Late Ordovician ⓘ Middle Ordovician ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.