80 MIDDLEMISS: THE OEOLOOY OF TDAR. STATE. 



4 miles E. of Dijio whore strike continuations of the Harnav river 

 sections show a good dip of 35° S.E. by moans of interbeddod 

 mica schists and more fissile quartzito. Here too occurs another 

 solitarv example of vein quartz and biotite-aplite intrusive in the 

 Delhi Quartzite. 



At locality (2), in the Harnav river-bed, three strike-spurs 



come down and touch the actual river-bed 

 Harnav river-bed. . . , , . .-, ,. . 



on its right bank. Ot these the western spur, 



situated about 2\ miles cast of Derol, is poorly exposed 



and shows no structure. The middle spur, about 1 mile further 



on, a rocky spur truncated at its tip by the river, is remarkable 



as exhibiting a very distinct and unmistakable dip, of 40° to 50°, 



towards E.byS. or E.S.E., in massive 2-feet beds of a rock of 



slightly varying composition, but much crushed and crumbled along 



joint-planes (see PL 4, fig. 2). The rock of the third and easternmost 



spur is manifestly continuous across the. narrow gorge and there 



is plenty of clearly exposed rock, both in the river-bed and in the 



continuation spur to the south. Notwithstanding this, and although 



a definite strike is well seen, one cannot be sure of anything more 



than a rolling irregular dip, generally steep to the east at an average 



angle of 40°. At locality (3) south of Kalol, the exposures are 



poor and irregular, as at Walren, and there is most probably much 



shattering near the small outcrop of biotite-gneiss at that locality. 



The usual N.N.E. — S.S.W. strike is generally indicated but there 



is no dip. 



At locality (4), N.N.E. of Chorivad, the high ridge of Delhi 



quartzite is much more regular and straight. 



Ridge north of &n ^ ^ same characteristics seem to follow 



Chorivad. .... >T 



its strike-continuation towards N.N.E. and 

 across the border into Vajenagar State. This ridge, north of 

 Chorivad, attains an elevation of over 1,900 feet reaching even 

 to 2,200 feet in one place ; it is steeper than usual, and. as seen 

 from the distance, its W.S.W. face suggests a banded or bedded 

 structure which gives it the appearance of a scarp (see PI. 5, fig. 2). 

 The rock is a white, grey and pale pink, generally coarse, 

 quartzite, and it is to variations of coarseness and colour that I 

 attribute the aspect of bedding as seen from a distance. Unfor- 

 tunately the steep, jungle-clad slopes are so much occupied by 

 huge dislocated masses of debris that clear exposures were gener- 

 ally impossible to find, and where such were found they were inde- 



