Geologic units in Cleveland county, North Carolina

Additional scientific data in this geographic area

Biotite Gneiss and Schist (Cambrian/Late Proterozoic) at surface, covers 45 % of this area

Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock.

Mica Schist (Cambrian/Late Proterozoic) at surface, covers 33 % of this area

Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite.

Cherryville Granite (Mississippian) at surface, covers 11 % of this area

Massive to weakly foliated; contains pegmatites, lithium-bearing on east side.

Metamorphosed Granitic Rock (Ordovician/Cambrian) at surface, covers 7 % of this area

Equigranular to megacrystic, foliated to massive. Includes Toluca Granite.

Blacksburg Formation (Cambrian/Late Proterozoic) at surface, covers 2 % of this area

Sericite schist, locally with graphite, phyllite with sericite quartzite, banded marble, amphibolite, and minor calc-silicate rock.

Battleground Formation (Late Proterozoic) at surface, covers 2 % of this area

Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock.

Metamorphosed Quartz Diorite (Paleozoic/Late Proterozoic) at surface, covers 0.2 % of this area

Foliated to massive.

Biotite gneiss and muscovite-biotite gneiss (Cambrian or Neoproterozoic) at surface, covers < 0.1 % of this area

Layered biotite-quartz-feldspar gneiss

Sillimanite-mica schist and muscovite-biotite schist (Cambrian or Neoproterozoic) at surface, covers < 0.1 % of this area

Thin to thick layered sillimanite-mica schist and sillimanite-bearing muscovite-biotite schist