8 EARLY TERTIARY OSTRACODA 



III. LITHOLOGICAL UNITS 



Sulaiman Range. The lithological units of the Rakhi Nala section have been 

 described in detail by Eames (1952, pp. 162-165), Bayliss (1961) and Latif (1961, 

 p. 32). Fig. 2 shows the succession, and the formation names give some idea of the 

 lithology ; for a fuller description, see the authors mentioned above. The Eocene 

 succession in the Zao River and Shpalai Khwara sections (Fig. 3) is very similar to 

 that of the Rakhi Nala section. A detailed lithological description of rocks exposed 

 along the Rakhi Nala, Zao River and Shpalai Khwara sections is given by means of 

 two charts. 



ZAO RIVER 



SHPALAI KHWARA 



Succession 



Thickness 

 in feet 



Sample 

 nos. 



Thickness 

 in feet 



Sample 

 nos. 



c 



o 

 o 



LU 



a. 

 a. 



ID 



c 



(J 

 o 



LU 

 T3 



in 



h *» 



9 E 



■C ,0 



-£ ID 



5 o 



Q. <• 



D - 



Upper Chocolate Clays (Upper part) 



1796 



a e 



.c ° 



k ° 



u 



o t 

 -I X 



Upper Chocolate Clays (Lower part) 



910 



White Marl Band 



86 



Lower Chocolate Clays 



754 



Platy Limestone 



178 



24210 



1 



24161 



24160 



24138 



24134 



24133 



24120 



24119 



?41K 



Q 

 LU 

 CO 



o 

 a. 



X 



LU 



A0 



24696 

 24694 



m 



M. 



Shales with Alabaster 



at least 

 332 



24113 

 24 T 097 



at least 

 320 



24^93 

 24675 



Part of the Eocene Succession in the Northern Sulaiman Ran ge. 



FIG. 3 



Sor Range. Samples were collected from the " Claystones " which are overlain by 

 fifty feet of conglomerates. The Ghazij Shales overlie the conglomerates. A chart 

 showing these lithological units is given (Fig. 6), and a detailed succession is given in 

 Appendix 1. " The locality is in Lease 58 on the north slope of the Sor Range, about 

 eight miles by road east of Quetta (Survey of Pakistan Topo. Sheet No. 34 N/4, co- 

 ordinates 30 n'20" N., 67 10' E, grid reference P 125210). Samples were collected 

 from a road cut along the main access road that crosses the lease approximately 

 parallel with the outcrop and along the contour of the slope ; structurally the locality 



