Palisades Sill
E574673
Palisades Sill is a prominent Jurassic-age igneous intrusion along the Hudson River, best known for forming the steep basalt cliffs of the New Jersey–New York Palisades.
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
igneous intrusion ⓘ sill ⓘ |
| approximateAgeMa | 200 ⓘ |
| associatedWith | opening of the Atlantic Ocean ⓘ |
| coolingHistory | slow cooling at shallow crustal depths ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| emplacementEnvironment | subsurface sill intrusion ⓘ |
| eruptionStyle | non-eruptive intrusive body ⓘ |
| exposedIn | Palisades Interstate Park NERFINISHED ⓘ |
| extendsFrom | Jersey City, New Jersey NERFINISHED ⓘ |
| extendsTo | near Nyack, New York ⓘ |
| forms |
New Jersey Palisades
NERFINISHED
ⓘ
New York Palisades NERFINISHED ⓘ Palisades cliffs NERFINISHED ⓘ |
| geologicAge | Jurassic ⓘ |
| hasFeature |
chilled margins
ⓘ
coarse-grained interior ⓘ |
| hasImportance |
classic site for studying sill emplacement
ⓘ
landmark along the Hudson River ⓘ |
| intrudedInto | Newark Basin sequence NERFINISHED ⓘ |
| lithology |
basaltic rock
ⓘ
diabase ⓘ dolerite ⓘ |
| locatedAlong | Hudson River NERFINISHED ⓘ |
| locatedIn |
Hudson River Palisades
NERFINISHED
ⓘ
New Jersey, United States ⓘ
surface form:
New Jersey
New York NERFINISHED ⓘ |
| maximumThickness | approximately 300 meters ⓘ |
| mineralogy |
olivine (local)
ⓘ
plagioclase ⓘ pyroxene ⓘ |
| notableFor |
columnar jointing
ⓘ
prominent vertical cliffs ⓘ |
| overlies | sedimentary rocks of the Newark Basin ⓘ |
| partOf | Central Atlantic Magmatic Province NERFINISHED ⓘ |
| protectedBy | Palisades Interstate Park Commission NERFINISHED ⓘ |
| relatedFeature |
Newark Basin
NERFINISHED
ⓘ
Watchung basalts NERFINISHED ⓘ |
| rockType | mafic intrusive rock ⓘ |
| studiedInDiscipline |
geomorphology
ⓘ
igneous petrology ⓘ structural geology ⓘ |
| tectonicSetting | rift-related magmatism ⓘ |
| visibleAs | steep basalt cliffs ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Palisades