1918,] The Charnockites and the Dharwars. 441 
Dharwars has seldom been alluded to, presumably because the 
highly metamorphosed condition of the Khondalites communi- 
cates to them an appearance greatly differing from that of the 
possibly corresponding less metamorphosed Archean sediments 
of Dharwar age. Just as, in Southern India, there is good 
reason to regard the Charnockites as intensely metamorphosed 
representatives of the igneous members of the Dharwar system, 
so, in the eastern portion of the Peninsula does it seem quite 
plausible to regard the Khondalites as intensely metamorphosed 
representatives of the sedimentary members of the Dharwars. 
Just in the same way as, in Southern India, the Dharwars and 
Charnockites mutually exclude one another, so in the north- 
eastern portion of the Peninsula is there a similar mutual ex- 
clusion of the Khondalites and of the more typical sedimentary 
mites and the typical Charnockites, so do we find, in many 
g 
wgatded as of Dharwar a d int ted as an altered 
i ge, and interpreted 
oT ‘wand rock (Maclaren, Rec. Geol. Surv. India, Vol. XXXI, 
eoedly . At Bensibetta, in North Coimbatore, sillimanite 
Occurs abundantly in a mass of green, somewhat —— 
sah and south striking quartzite, with also much kyanite, ie 
— rutile and fuchsite ; the same sillimanite-bearing poner 
(Midanee at Satyamangalam and several intermediate loc oe 
oe and Hayden, Mem. Geol. Surv. India, Vol. 
’ pt. a: ‘ 9 c 
preci me of the occurrences of this latter group cursespon 
whi ‘Sely with the narrow band of Dharwars already referred > 
oh has been mapped as penetrating the Charnockite outcrop 
