OP CUTCH. 5 



bearing on other questions were merely noted when they presented them- 

 selves. Some most interesting points relating to the tertiary formations 

 yet await enquiry. 



3. Detailed observations. — Leaving Mandavee and marching on 

 the road to Bhooj^ a plain of alluvium is traversed as far as Asambya. 

 There ferruginous clays are seen_, which harden on the surface into a form 

 of laterite. These, from their mineral character, may be recognised as 

 identical with the lowest beds of the nummulitic formation near Surat."^ 

 Beneath the laterite at Asambya is a peculiar bed of sandy clay, exces- 

 sively ferruginous, and containing masses of impure haematite, and below 

 this again pale dove-coloured sandstone with red bands, and with deep 

 red clay in the jointing planes. In their ferruginous character and varia- 

 tion of colour these beds recall somewhat the variegated clays and sand- 

 stones of the Lynyan and Mohun in Sind.f They are, however, so far 

 as seen, of small thickness. 



All these beds dip south at a low angle (about 5°). Immediately 

 from beneath them to the north, trap crops out, dipping also to the 

 south beneath the tertiary beds. It continues for about four miles, the 

 dip being the same all the way. Somewhat to my surprise, I immedi- 

 ately recognised in it the trap of the Deecan and Guzerat. The steady 

 bedding and the mineral character were both unmistakeably identical, 

 the latter especially, for, amongst the different beds, there occurred not 

 only the characteristic amygdaloid of the Deecan traps, with its kernels 

 of stilbite surrounded by a crust of green earth, but also the very 

 peculiar felspar porphyry so common locally amongst the volcanic 

 formations of Western India. 



The road from Mandavee to Bhooj crosses the strike of the trap beds 

 diagonally, and, just beyond the village of Choolri, coarse white and 

 brown sandstones come in beneath it, still dipping south. About 



* These will be described in a future paper, 

 t See preceding paper. 



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