Catoctin greenstone
E423972
Catoctin greenstone is a metamorphosed basaltic rock formation characteristic of the Catoctin Formation in the central Appalachian region of the eastern United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Catoctin greenstone canonical | 1 |
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
basaltic rock
ⓘ
greenstone ⓘ metamorphic rock ⓘ |
| associatedWith | Blue Ridge Province NERFINISHED ⓘ |
| commonIn | Blue Ridge hiking outcrops ⓘ |
| exposedIn |
Maryland
NERFINISHED
ⓘ
Pennsylvania NERFINISHED ⓘ Virginia NERFINISHED ⓘ West Virginia NERFINISHED ⓘ |
| fieldIdentificationBy |
green color from chlorite and epidote
ⓘ
relict pillow structures in some flows ⓘ |
| formedInTectonicSetting |
continental rift
ⓘ
rift-related volcanic province ⓘ |
| geologicAge |
Late Proterozoic
NERFINISHED
ⓘ
Neoproterozoic ⓘ |
| hasColor | green ⓘ |
| hasEconomicUse |
construction aggregate
ⓘ
crushed stone ⓘ |
| hasMetamorphicFacies | greenschist facies ⓘ |
| hasMetamorphicGrade | low-grade metamorphism ⓘ |
| hasMineralogy |
actinolite
ⓘ
albite ⓘ chlorite ⓘ epidote ⓘ |
| hasProtolith |
basalt
ⓘ
mafic lava flow ⓘ |
| hasStructure |
amygdaloidal structure
ⓘ
pillow structure ⓘ |
| hasTexture |
fine-grained
ⓘ
massive ⓘ |
| importantFor |
reconstructing Neoproterozoic rifting of Laurentia
ⓘ
studies of Appalachian tectonic evolution ⓘ |
| locatedIn |
central Appalachian region
ⓘ
eastern United States NERFINISHED ⓘ |
| namedAfter | Catoctin Mountain NERFINISHED ⓘ |
| overlainBy | Chilhowee Group NERFINISHED ⓘ |
| partOf | Catoctin Formation NERFINISHED ⓘ |
| typeLocality | Catoctin Mountain NERFINISHED ⓘ |
| underlainBy | Grenville basement rocks ⓘ |
| underlies | Chilhowee Group sandstones ⓘ |
| weatheringProduces | thin, rocky soils ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.