Shubuta Hill clay. Shown on geologic cross sections and stratigraphic column as a fossiliferous, glauconitic marl with phosphate nodules near top. Stratigraphically above Yazoo clay and below Red Bluff [clay]. [Age is late Eocene (Jackson). Present in central Alabama.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 3592).

Fig. 2, p. 13. "Shubuta Hill Clay" of Smith [and others] mentioned as a fossil locality in discussion of Little Stave Creek Foraminifera. Included the "Shubuta Hill" and part of overlying plastic blue clay in his Zone B (uppermost Eocene) of Jackson formation. Occurs below Red Bluff clay (lower Oligocene).

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 3592).

Shubuta Hill Clay apparently not AL State usage as it is not included in this compendium. Stratigraphic column shows unconformity between the Yazoo and the Red Bluff Clays. However, uppermost member of the Eocene Yazoo is the Shubuta, extended from its type locality in MS. [Shubuta Member of Yazoo was named by G.E. Murray in 1947; Shubuta Hill Clay is credited to Smith and others, 1944.]

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