SEC. 9.] COUNTRY WEST OF DHENODTJK. 21 1 



shales also were searched for Zamia with as little success as usual in the 

 lower part of the formation, small casts of bivalve shells only being 

 found. 



The Keera hill is an intrusive peak of dense, fine-grained, sub-crys- 

 talline basalt, 380 feet in height, irresularlv in- 



The Keera hiU. & > & J 



truded among shales and red sandstones, the latter 



being rare here. It is extremely steep and difficult to ascend in 



consequence of the looseness of the shingle barely resting on its sides. 



Immediately to the south of it an oval quaquaversal arrangement of the 



lower beds occupies some hilly ground under two miles in length along 



the axis, and, as usual, the highest inclinations are those to the north. 



The rocks are penetrated in various directions by intrusions of 

 amygdaloid and basalt, some of which, having forced a passage between 

 the beds for short distances, follow the lines of their outcrop. 



The following succession was observed in descending order : — 



6. — Coarse sandstones weathering brown. 



f Thinner, smoother, and more flaggy heds, with black shales and occasional 



I strong beds, 

 4, — Very strong, smooth, light-colored, yellowish sandstone, in pla,ces oolitic. 

 3. — Thick band of shales. 



J" Calcareous sandstone, shaly and muddy calcareous beds, with bands of 



■{ 



golden oolite- 

 1. — Light yellowish sandstone. 



The calcareous zone which resembles that of the Jooria hills 



contains strong bands of the golden oolite found 

 Golden oolite. . 



there also, some parts presentmg a greater deve- 

 lopment of the oolitic structure than others, though bands of it occur 

 80 feet in thickness. It sometimes contains fossils as do nearly all the 

 beds of the locality, but, generally speaking, underlies the most fossili- 

 ferous bands. Some of the shale contains Ammonites in great numbers, 

 which weathering out lie scattered over the surface ; and from a hard, 

 calcareous, blotchy bed forming part of the southern side of the dome one 



( ail ) 



