Carolina Slate Belt

CAROLINA SLATE


METAMORPHIC ROCKS

CZy - YADKIN FORMATION - Metamorphosed graywacke, volcanic sandstone, and siltstone; interbedded with mafic and intermediate metavolcanic flows and tuffs
CZmd - METAMUDSTONE AND META-ARGILLITE - Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock
Southwest of Asheboro:
CZmd3 - Floyd Church Formation
CZmd2 - Cid Formation
CZmd1 - Tillery Formation
CZmv - MAFIC METAVOLCANIC ROCK - Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone
CZmv1 - Cid Formation (southwest of Asheboro)
CZfv - FELSIC METAVOLCANIC ROCK - Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone
CZfv2 - Cid Formation (southwest of Asheboro)
CZfv1 - Uwharrie Formation (at Asheboro and to south)
CZiv - INTERMEDIATE METAVOLCANIC ROCK - Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock
CZv - METAVOLCANIC ROCK- Interbedded felsicto mafic tuffs and flowrock
CZve - METAVOLCANIC-EPICLASTIC ROCK - Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock
CZc - VOLCANIC METACONGLOMERATE - Includes metagraywacke and metamudstone
CZph - PHYLLITE AND SCHIST - Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels, and biotite gneiss and schist

CAROLINA SLATE


INTRUSIVE ROCKS

DIABASE - Dikes, gray to black, not shown
PPg - GRANITIC ROCK - Megacrystic to equigranular. Lilesville granite
Pgb - PEE DEE GABBRO - Dark gray to black, medium to fine grained, massive
PzZq - METAMORPHOSED QUARTZ DIORITE - Foliated to massive
PzZg - METAMORPHOSED GABBRO AND DIORITE - Foliated to massive
PzZm - METAMORPHOSED MAFIC ROCK - Metagabbro, metadiorite, and mafic plutonic-volcanic complexes
PzZu - META-ULTRAMAFIC ROCK - Metamorphosed dunite and peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown
CZg - METAMORPHOSED GRANITIC ROCK - Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites

Return to Geologic Map of North Carolina