140 
THE TERTIARY GEOLOGY OP THE 
any rcaKonablo doubt as to the continuity existing between these deposits, and the 
similar ones exposed on Claiborne bluff. 
Skjtion on Basiiia Creek, Clarke Co. — Probably the section representing the 
oldest Eocene deposits of the State is that exposed on Bashia Creek, detailed by 
Tuomey in his “First Biennial Report,” p. 145 : 
1 
Hard Limestone. 
4 feet. 
s 
Marl, highl)' fossiliferous. 
25 feet. 
3 
Blue sand. 
Variable. 
4 
Lignite and elay. 
6 feet. 
5 
Laminated clay, sand, and mud. 
Thickness undetermined. 
6 
Lignite. 
do. do. 
Notk.— HwIs 5 and 6 do not properly belong to the section, but “ represent beds seen on another part of the 
Htreain below the preceding” (Tuomey, ioe. eit., p. 146). 
Beds corresponding to No. “ 2 ” of the above section are likewise exposed on Cave 
and Knight’s branches, tributaries of Bashia Creek, and have been shown by Dr. 
I'.ugene Smith to underlie the base of the “ Buhrstone ” proper by nearly (if not 
more than) 200 feet.* The relations of these various beds will be best understood by 
a reference to the sections exposed on the Tombigbee River. 
Sections on toe Tomrigbee River.— A t Wood’s Bluff, near the mouth of Bashia 
Creek, we have the following e.xposure : — 
No. 
7 
1 
1 Orange sand, or stratified drift. 
Peet. 
10-20 
6 
5 
_C^yi8h or greenish laminated clays, colored brown by iron. 
10 ' 
Ledge of bluish or greenish sand, fossiliferous— capped by a 
j letlge of hard nodules. 
2 
4 
_2Mui8h laminated clay, with few fossils. 
5 
8 
Indurated greenish sand, full of the same shells as marl bed 
No. 2. 
2 
1 
Greensand marl, quite soft, and full of shells. 
3 
Indurated greensand with shells, and a stratum of oyster- 
shells at water’s edge— said to extend 10 feet further down 1 
1 
10-15 
of its fos 1 reV^TTb c ‘Character 
anj it r ,rr ^ -posed on Cava and Knight’s branches, 
— unlikely that the series 1-5 correspond in the main with No. 2 
* Ileilprin, Proc. Acad. Nat. Sciences, 1881, p. 369. 
