THE FAYETTE BEDS. 53 



1. Pebbly quaternary drift 10 feet. 



2. Laminated chocolate clays and sandy clays, white on exposed surface, or 



yellow with sulphur 100 feet. 



3. Woody lignite 5 feet. 



4. Same strata as 2 5 feet. 



Numbers 2 and 4 contain large quantities of sulphur, coating the ex- 

 posed surfaces and joint cracks as an efflorescence. Gypsum crystals are 

 very plentiful throughout the beds. The lignite contains masses of partly 

 silicified and partly lignitized wood. The associated clays also contain frag- 

 ments of the same material. The whole bluff presents a white or yellow ap- 

 pearance, but on breaking through the outside crust the sands and clays re- 

 gain their original dark color. At the foot of the bluff: we find fragments 

 of a hard light watery-green clay, of the consistency of talc. These pieces 

 came from near the top of the ledge, and will be mentioned further on. Low 

 outcrops of the same materials are seen below this point until we come to the 

 second "Chalk Bluff." This is about a quarter of a mile long, has a general 

 dip of 3 degrees southeast, and is about the same height as the first one. The 

 following section is made up from different points along the bluff: 



1. Quaternary drift. 



2. Interbedded gray and white sand, white and watery-green clay 



3. Hard watery-green clay, like in (2) 



4. Lignite 



5. Similar strata to (2), light chocolate color on surface 



6. Lignite 



7. Similar strata to (5) 



8. Chocolate clays, with black leaf and reed impressions 



9. Hard watery-green clay 



10. Lignite 



11. Hard light green clay 



12. Similar strata to (8) i to 1 



13. Hard light green clay 



14. Lignite 



15. Hard light green clay . . . 



Leaf impressions are found in many places throughout the whole bluff, but 

 especially in the two beds mentioned in the above section. Considerable 

 gypsum and sulphur exist throughout the strata. The lumps of hard clay 

 found at the base at the first Chalk Bluff are probably from a bed corres- 

 ponding to the foot of this bluff. For two miles below here are seen small 

 outcrops of similar strata, all showing a uniform southeast dip of about 5 

 degrees, and composed of green, grey, chocolate, and black clays or sands. 

 In one place a lignite bed over ten feet thick was seen. The river here is 

 very crooked, and the same beds are cut by it in several different places. 

 Four miles, by river, above La Grange is "Palm Bluff," about 100 feet high 



70 



feet. 



4 



feet. 



2 



feet. 



3 



feet. 



1 



foot. 



7 



feet. 



^ foot. 



4 



feet. 



1 



foot. 



5 



feet. 



) 1 



foot. 



6 



feet. 



J 2 



feet. 



10 



feet* 



