136 WYNNE : GEOLOGY OF KUTCH. [PAKT 11. 



The following section from Mr. Fedden^s note book shows the 

 structure of the western part of the escarpment : — 



Scarp about 180 feet Tiigh (descending order). Ft. 



8. — Trap, fine grained basalt ... ... ... 1 to 6 



p 7. — Brecciated and conglomeritic bed, lower part almost 

 I wholly of pink lava ? ... ... ... 3 



? lOTEA-TEAPPEAN 6.— Yellow sandstone ... ... ... ... 2 to 



\ 5. — Conglomeritic and concretionary bed of pale lavender 



I and pink lava (?) with large pebbles of bornstone, 



fragments of yellow clay and fine sandstone ... 1 to 4 



L 4. — Hard yellow and pinkish gritty sandstone .. 5 to 



f 3. — Wliite felspathie gravel of rolled quartz ... ... ? 7 



2. — White, sandy, and gravelly beds, upper part coarser, 

 quartz gravel in a soft felspathie matrix, chalky 

 Uppee geotfp of i lumps of which also occur. 



JITEASSIC. j (Scarp ceases at edge of plain). 



1. — Sandy felspathie beds of great thickness, white mottled 

 and pale pinkish or dove color, parts coarser, with seams 

 L of quartz gravel. 



One or two isolated lumps of the purple lava (?) were also found in 

 the yellow gritty sandstone No. 4 of the above section. 



Along the strike to the east this yellow sandstone disappears^ and 

 the brecciated part with large pebbles of hornstone rests directly on 

 the white quartzose gravelly beds of the Jurassic group. 



The hard yellow grit is, however, persistent to the westward, having 



near Buchaoo fort but a thin capping of trap. 

 Buchaoo. 



Here the whole of the scarp is occupied by strong, 



ferruginous, gravelly and sandstone beds, while the wells in the plain 



at the foot of the scarp pass through the white felspathie beds of the 



upper group of the Jurassic rocks. 



West of Buchaoo the ground is much broken and the succession is 



not so easily traced, though similar, but more varied, 



rocks underlie the traps. The same fine-grained 



basaltic flow extending in this direction occupies the upper part and 



southern slope of the hill west of the town ; but the rugged hills just 



beyond and north of Chaprooa show only remnants of it, 



( iat3 ) 



