SOUTHERN KHIRTHAR, BHIT AND BADHRA RANGES. 109 



between Karachi and Sehwan. This tract comprises the southern portion 

 of the Khirthar Range, here a simple anticlinal of Khirthar limestone, run- 

 ning from north-north-west to south-south-east, and two other anticlinals 

 of the same rock, known as Bhit and Badhra, running north and south, 

 and joined to the Khirthar at their southern extremities. There is 

 also a low detached ridge of Gaj beds, known as Gamrak, running from 

 west-by-north to east-by-south, at a distance of 5 or 6 miles from the 

 southern shore of the Manchhar Lake. 



The tract of country now described is comprised within the limits of 

 sheet 5 of the quarter-inch map, and in sheets 38, 39, 40, 51 and 54 of 

 the inch survey. The description commencees at the north-west cor- 

 ner 1 , close to the valley of the Nari Nai. 



The Gaj beds are well seen on the Kukadani Nai (Kukrani Nai of 

 GSj beds on Kukadani £- mch ma P> Choree Kook of 1-inch). They 

 ■ Na1, still consist largely of sandstone. Farther south, 



near Khair Muhammad, the hills become lower and separated by broader 

 flats. Near Kuba Jagu Jamali, west of Khair Muhammad, in a low 

 ridge of Gaj beds dipping at about 35° to 45°, fossils are found in 

 great abundance, and amongst other species Dosinia pseudoargus, Venus 

 (or Tapes) suhvirgata, Cardium anomale, Area Jcurrackeensis, and A. 

 peethensis occur, together with many Gasteropoda. The fossils are found 

 in calcareous bands, but sandstones prevail. 



The ridges of Gaj and Manchhar beds run across the country in the 

 Gaj beds in ADgyi direction of the strike of the beds to Tandra 

 stream ' Rahim Khan, where they are intersected by the 



Angyi (Ungyee) stream, and thence in a south-by-east direction to Pir Gazi 

 at the eastern base of the Bhit Range. On the westernmost ridge 

 of Gaj beds, north of the Angyi, Ccelopleurus forhesi is very abundant. 

 The diminution of thickness in the Manchhar beds at this spot, compared 

 with their development farther north, has already been noticed in a 

 previous chapter ; the whole of the section appears represented ; there are 

 conglomerates at the top, then orange clays (Upper Manchhar), and 

 towards the base the lower Manchhar grey sandstones, yet the whole 



( 109 ) 



