ARAVALLI SYSTEM. 49 



(5) Amphibolite Limestones of Kherod. 



This scries of partly calcareous rocks, although it has some 

 features in common with the neighbouring calc-gneiss, is neverthe- 

 less sufficiently different in many ways to require separate treat- 

 ment, and to be coloured separately on the map. 



If the rather uniformly elevated country, occupied by the calc- 

 gneiss and lying to the north of Khed Brahma 

 SulS^'l'vanues. "* bc Allowed northwards, it will be seen to 



come to an end along a somewhat sharply 

 marked N.E. — S.W. line coinciding with a few low summits among 

 which are the points marked 1137 and L123. Here, in fact, the 

 level drops suddenly, over a low " ghat " or scarp, down to the 

 alluvium of the Sabarmati valley, where are situated the. villages 

 of Dan Mauri, Nau and Kherod. This valley, however, is not 

 entirely occupied by alluvium. Rising out of it there are a. few discon- 

 nected, strongly accentuated, low and narrow, strike ridges, which 

 follow a N.E, — S.AY. direction parallel to the scarped edge of the 

 calc-gneiss. Several of these may be seen round about Nau. Kherod 

 and Tiniri. and similar, but more connected, little ridges may also 

 be discerned on the other side of the river in Danta State, and away 

 again to the north-east in the direction of Posina. 



Their aspect is in many ways distinct from that of the calc-gneiss 

 country, and their peculiarities of contour are fairly well reflected 

 in the hill-shading of the l"==l mile sheets. This sudden drop 

 in altitude, and the change of aspect in the country-side, presage 

 the incoming of this somewhat different set of rocks— the amphi- 

 bolite limestones of the Kherod neighbourhood— of which a short 

 and rather imperfect account will now be given. Owing to local 

 conditions I was unable to complete the examination of them in 

 their most northern continuation as far as Posina, and I was also 

 not allowed to do more than make a short excursion across the 

 river into Danta State. 



The rocks are fairly well exposed near Khered in the stream- 

 beds and in the Sabarmati river-bed, as well 



thcSinoST Whh as in the little rid ^s before alluded to. The 



sections are not. however, continuous right up 

 to the calc-gneiss owing to alluvium ; so that one could not be 

 certain as to the nature of the junction. It appears to be rather 

 definite and sudden, at least so far as the absence of any interbanding 

 of one with the other is concerned. 



