Name Timbergut member of Emuckfaw Formation credited to Bieler & Deininger (1984: GSA Abs, v. 16). Upper of 2 informal members. Described as relatively mature, garnet-gree, muscovite schists, calc-silicates, and quartzitic gneisses. Mappable for 60 km in Tallapoosa Co., east-central AL. Excellent exposures along Timbergut Creek. Unconformably(?) overlies Josie Leg member and underlies Kowaliga augen gneiss. Age is early Paleozoic(?).

Source: GNU records (USGS DDS-6; Reston GNULEX).

Emuckfaw is elevated to group status because of its lithologic diversity and areal extent. Informal Josie Leg and Timbergut members are upgraded to formation status, but remain informal. Formal proposals are forthcoming by Bieler and Guthrie. Josie Leg consists of an interlayered sequence of garnet biotite muscovite quartz schist, garnet biotite plagioclase gneiss and thin-bedded amphibolite. Also includes a distinctive, greenish-gray garnet quartzite here informally referred to as the Perryville quartzite member. Overlying Timbergut formation is a heterogeneous assemblage of schist and gneiss characterized by a noticeable lack of garnet and feldspar and a greater percentage of muscovite than biotite. In the study area includes minor amounts of calc-silicate gneiss and amphibolite. Schists are dominant over gneisses. The two formations are separated by intensely sheared granite gneiss, here assigned to the Zana Granite. Josie Leg corresponds to the northern Heard Group, while Timbergut corresponds to the southern Heard Group, as defined by Muangnoicharoen (1975). Therefore, Heard Group should be abandoned. Emuckfaw overlies Wedowee Group. Upper age constraint of Middle Ordovician concluded from premetamorphic intrusion of Zana Granite.

Source: GNU records (USGS DDS-6; Reston GNULEX).