Definitions
from The Century Dictionary.
- noun An altered or partly metamorphosed basalt.
Etymologies
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Examples
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Metarhyolite and metabasalt occur in Pennsylvania; diabase, metabasalt, and metarhyolite are found in Maryland.
Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA) 2008
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Typically occurring in Virginia are basalt and metabasalt of the Catoctin Formation, granite and granodiorite of the Virginia Blue Ridge Complex, and andesite, tuft, and greenstone of the Swift Run Formation.
Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA) 2008
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