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.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Taconic orogeny canonical | 14 |
| Taconic clastic wedge | 1 |
| Taconic orogenic cycle | 1 |
| Taconic orogenic framework | 1 |
| Taconic orogeny belt | 1 |
| Taconic tectophases | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geological event
ⓘ
mountain-building event ⓘ orogeny ⓘ |
| affects |
Appalachian Basin
ⓘ
New England ⓘ New York ⓘ island of Newfoundland ⓘ
surface form:
Newfoundland
Pennsylvania ⓘ Quebec, Canada ⓘ
surface form:
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
ⓘ
surface form:
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 orogeny
self-linksurface differs
ⓘ
surface form:
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 (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Taconic orogeny belt
this entity surface form:
Taconic clastic wedge
this entity surface form:
Taconic orogenic cycle
this entity surface form:
Taconic tectophases
this entity surface form:
Taconic orogenic framework