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Mineral Resources > Online Spatial Data > Geology > by state > North Carolina Geology

Geologic units in Moore county, North Carolina

Newark Supergroup, Chatham Group; Chatham Group, Undivided (Triassic) at surface, covers 2 % of this area

Chatham Group, Undivided - conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern.

Lithology: conglomerate; sandstone; mudstone

Phyllite and Schist (Cambrian/Late Proterozoic) at surface, covers 2 % of this area

Phyllite and Schist - minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment and metavolcanic rock.

Lithology: phyllite; schist; phyllonite; metasedimentary rock; metavolcanic rock

Pinehurst Formation (Tertiary) at surface, covers 8 % of this area

Pinehurst Formation - sand, medium- to coarse-grained, cross-bedding and rhythmic bands of clayey sand common, unconsolidated.

Lithology: sand; clay or mud

Terrace Deposits and Upland Sediment (Tertiary) at surface, covers < 0.1 % of this area

Terrace Deposits and Upland Sediment - gravel, clayey sand, and sand, minor iron-oxide cemented sandstone.

Lithology: terrace; gravel; sand; clay or mud; sandstone

Castle Hayne Formation; Comfort Member and New Hanover Member, undivided (Tertiary) at surface, covers < 0.1 % of this area

Comfort Member and New Hanover Member, undivided - Comfort Member: bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties.

Lithology: limestone; dolostone (dolomite); conglomerate

Uwharrie Formation; Felsic Metavolcanic Rock (Cambrian/Late Proterozoic) at surface, covers < 0.1 % of this area

(at Asheboro and to south); 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.

Lithology: felsic metavolcanic rock; mafic metavolcanic rock; intermediate metavolcanic rock; meta-argillite; metasedimentary rock

Cape Fear Formation (Cretaceous) at surface, covers 8 % of this area

Cape Fear Formation - sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuos bedding, blocky clay, faint cross-bedding, feldspar and mica common.

Lithology: sandstone; mudstone; sand; clay or mud

Middendorf Formation (Cretaceous) at surface, covers 38 % of this area

Middendorf Formation - sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinuous, cross-bedding common.

Lithology: sand; sandstone; mudstone; clay or mud

Felsic Metavolcanic Rock (Cambrian/Late Proterozoic) at surface, covers 3 % of this area

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.

Lithology: felsic metavolcanic rock; mafic metavolcanic rock; intermediate metavolcanic rock; meta-argillite; metasedimentary rock

Newark Supergroup, Chatham Group; Pekin Formation (Triassic) at surface, covers 9 % of this area

Pekin Formation - conglomerate, sandstone, and mudstone.

Lithology: sandstone; mudstone; conglomerate

Mafic Metavolcanic Rock (Cambrian/Late Proterozoic) at surface, covers 0.1 % of this area

Mafic Metavolcanic Rock - metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone.

Lithology: mafic metavolcanic rock; felsic metavolcanic rock; intermediate metavolcanic rock; metasedimentary rock

Intermediate Metavolcanic Rock (Cambrian/Late Proterozoic) at surface, covers 0.9 % of this area

Intermediate Metavolcanic Rock - metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock.

Lithology: intermediate metavolcanic rock; felsic metavolcanic rock; mafic metavolcanic rock

Metamudstone and Meta-Argillite (Cambrian/Late Proterozoic) at surface, covers 5 % of this area

Metamudstone and Meta-Argillite - bedding plane and axial-planar cleavage common; interbedded with metasandstone, meta-conglomerate, and metavolcanic rock.

Lithology: metasedimentary rock; meta-argillite; meta-conglomerate; metavolcanic rock

Newark Supergroup, Chatham Group; Cumnock Formation (Triassic) at surface, covers 2 % of this area

Cumnock Formation - sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations.

Lithology: sandstone; mudstone; coal; mixed clastic/carbonate

Diabase (Jurassic) at surface, covers 0.1 % of this area

Diabase - dikes, gray to black.

Lithology: diabase

Metavolcanic-Epiclastic Rock (Cambrian/Late Proterozoic) at surface, covers 17 % of this area

Metavolcanic-Epiclastic Rock - metamorphosed argillite, mudstone, volcanic sandstone, and conglomerate, and volcanic rock.

Lithology: meta-argillite; meta-conglomerate; metasedimentary rock; metavolcanic rock

Newark Supergroup, Chatham Group; Sanford Formation (Triassic) at surface, covers 7 % of this area

Sanford Formation - conglomerate, fanglomerate, sandstone, and mudstone.

Lithology: conglomerate; sandstone; mudstone