Layered biotite-quartz-feldspar gneiss
Biotite-quartz-plagioclase gneiss and interlayers locally containing hornblende, sillimanite, microcline, and muscovite
Thin to thick layered sillimanite-mica schist and sillimanite-bearing muscovite-biotite schist
Sillimanite-rich aluminous schist composed mainly of sillimanite, biotite, muscovite, and minor quartz
Variably layered biotite-quartz-feldspar gneiss having porphyroclasts and/or porphyroblasts of plagioclase and locally of quartz and potassium feldspar
Gneissic biotite granite to granodiorite
Variably foliated, variably migmatitic, and granitic to quartz dioritic in composition
Amphibolite and interlayered gneiss, hornblende gneiss and minor mica schist
Battleground Formation, Mafic to intermediate metavolcanic rocks
Quartz-sericite schist/phyllite and interlayered quartzite, quartz-pebble conglomerate, high-alumina quartzite, and manganiferous schist
Battleground Formation, Felsic metavolcanic rocks
Weakly to strongly foliated, garnet-bearing, metamorphosed monzogranite to granodiorite; ranges from equigranular and medium-grained to inequigranular having coarse microcline megacrysts
Metamorphosed granite and granodiorite
Cedar Shoals gneiss is biotite-quartz-feldspar gneiss interpreted as metagraywacke; interlayered felsic gneiss interpreted as metavolcanic rock.
Foliated, medium-grained, equigranular to porphyritic biotite granite
Metamorphosed ultramafic rocks: hornblendite, pyroxenite, serpentinite and talc schist
Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar.
Metagabbro and minor metadiorite
Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite.
Foliated to massive, granitic to quartz dioritic; biotite gneiss and amphibolite common.