Southern Uplands accretionary prism
E43372
The Southern Uplands accretionary prism is a large, deformed wedge of sedimentary rocks in southern Scotland formed by the off-scraping and stacking of oceanic sediments during ancient subduction along the Iapetus Ocean.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
accretionary prism
ⓘ
geological formation ⓘ tectonic wedge ⓘ |
| boundedToNorthBy |
Southern Uplands Fault
ⓘ
surface form:
Southern Upland Fault
|
| boundedToSouthBy |
Southern Uplands Fault
ⓘ
surface form:
Orlock Bridge Fault
|
| composedOf |
mudstones
ⓘ
shales ⓘ turbiditic sandstones ⓘ |
| composedPrimarilyOf | sedimentary rocks ⓘ |
| country | United Kingdom ⓘ |
| deformationFeatures |
cleavage development
ⓘ
folds ⓘ thrust faults ⓘ |
| deformationStyle | intensely deformed ⓘ |
| exposedAtSurface | true ⓘ |
| extendsFrom | southwest Scotland ⓘ |
| extendsTo | southeast Scotland ⓘ |
| formedAlong | Iapetus Ocean ⓘ |
| formedByProcess |
off-scraping of oceanic sediments
ⓘ
subduction ⓘ thrust stacking of sedimentary slices ⓘ |
| formsPartOf |
Caledonian orogeny
ⓘ
surface form:
Caledonides
|
| geologicalAge |
Paleozoic Era
ⓘ
surface form:
Palaeozoic
|
| geologicalAgeDetail |
Ordovician
ⓘ
Silurian ⓘ |
| locatedIn |
Scotland
ⓘ
Southern Uplands ⓘ southern Scotland ⓘ |
| locatedOnContinent | Europe ⓘ |
| orogeny | Caledonian orogeny ⓘ |
| paleogeographicOrigin | Iapetus Ocean floor sediments ⓘ |
| relatedTo |
Central Lowlands of Scotland
ⓘ
surface form:
Central Belt of the Southern Uplands
Central Lowlands of Scotland ⓘ
surface form:
Midland Valley of Scotland
Southern Uplands ⓘ
surface form:
Northern Belt of the Southern Uplands
Southern Uplands ⓘ
surface form:
Southern Belt of the Southern Uplands
|
| researchField |
sedimentology
ⓘ
structural geology ⓘ tectonics ⓘ |
| sedimentaryEnvironment | deep-marine turbidite system ⓘ |
| significance |
key example of ancient accretionary prism in the Caledonides
ⓘ
records closure of the Iapetus Ocean ⓘ |
| structuralStyle |
fold-and-thrust belt
ⓘ
imbricate thrust stack ⓘ |
| tectonicSetting | convergent plate margin ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.