COAST BETWEEN KARACHI AND SONMIANT. 189 



APPENDIX. 



NOTE ON THE ROCKS SEEN NEAR THE COAST BETWEEN KARiCHI 

 AND SONMllNI. 



From the neighbourhood of Karachi an excursion was made to Son- 

 miani for the purpose of seeing" whether any connection could be traced 

 between the Manchhar beds of Sind and the Makran group. It was 

 found., however, that no representative of either group existed between 

 Cape Monze and Sonmiani. The Makran group only appears at a consi- 

 derable distance west of the place last named. The following are some 

 notes made on the geology : — 



Churna Island, an uninhabited rock in the sea, about 4 miles west 



of Cape Monze, appears to consist entirely of Gai 



Churna Island. , J J 



beds. It is possible that the lowest strata seen 



on the east side of the island may be older, but they do not resemble 

 Nari rocks. The beds generally dip west at an angle of about 30°, 

 except at the north-west end of the island, where the dip turns south- 

 ward, and becomes rather higher, about 40°. The upper beds, seen on 

 the west side, are whitish and buff limestones, most of them gritty ; 

 they rest upon calcareous sandstones and some shales. In the limestones 

 Breynia carinata, Echinolam-pas jacqtiemonti, Cli/peaster, Echinocliscus, a 

 large Echinus or allied genus, Pecten subcornem and Kuplrns rectus, occur. 



On the sandy plain west of the Habb, close to the mouth of the 

 Coast west of the river, is a small hill of hardened sandstone, pro- 

 Habb - bably Nari. Thence for a long distance no rocks 



are seen. About 10 miles from the Habb there is a little isolated hill 

 forming a headland, and connected with the main land by a broad spit 

 of sand. The rock of this hill is dark grey limestone resting on buff 

 shales, and probably belonging to the Khirthar group. No fossils were 

 detected. 



The most conspicuous hill on the coast is at Gadani, about 18 miles 



from the mouth of the Habb. This hill is pecu- 

 • Gadani Hill. ....... . . r 



liarly white in colour, and consists of very fine 



( 189 ) 



