Higgins Ferry Group

Thinly layered coarse to fine-grained biotite-feldspar-quartz gneiss, sericite-feldspar-muscovite schist, +/- biotite +/- garnet-muscovite schist, and biotite-garnet feldspathic gneiss; locally common pegmatites.
State Alabama
Name Higgins Ferry Group
Geologic age Precambrian to Paleozoic
Lithologic constituents
Metamorphic > Schist > Mica-schist > Muscovite-schistsericite-feldspar-muscovite schist, +/- biotite +/- garnet-muscovite schist; locally includes masses of roscoelite-graphite-quartz schist.
Metamorphic > Gneiss > Biotite-gneissthinly layered coarse to fine-grained biotite-feldspar-quartz gneiss, biotite-garnet feldspathic gneiss
Igneous > Plutonic > Granitic > Leucocratic-granitic > Pegmatite
Comments Printed map includes units 'hf, hfgr and hfgt' all under one description; split them up here.

Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.

NGMDB product
Counties Chilton - Clay - Coosa