APPENDIX. 303 
section crosses the line of fault by which the great quartzite bed is cut off, ` 
the fault line has trended away somewhat to the east, and the quartzite 
bed is seen to rise into a ridge opposing the main ridge and thus forming a 
deep and important synclinal fold which continues fully three miles south- 
ward, when it is terminated by an elliptical curve of the strata rising 
up to the south, thus closing up the fold, and forming a huge trough 
which may be entered by a deeply-cut gap lymg due west of the village 
of Chintapilly. Northward of the line of section the fault line continues 
in the axis of the synclinal fold, but so great an up-throw has taken 
place on the east side of the fault that the gneissic rocks are brought 
up to the surface, as shown in Section III. The highest part of the main 
ridge rises to an elevation of 1,191 feet at the Pulichinta Trigonometrical 
Station, which stands within the enclosures of an ancient hill fort now in 
ruins called the Madera Laladurgum. Proceeding with the line of 
section across the Cuchillabode, beds will be found in position correspond- 
ing with 7, 2%, ود‎ No. 6, and No.7. But the slates f, 7! and ۸ have 
thinned out greatly. The limestone (7?), where seen at the south side of 
the Cuchillabode, is a fine flaggy stone of white or pale bluish grey, but 
when traced northward changes rapidly into a dark green-grey rock 
in which the argillaceous greatly exceed the calcareous lamine. The 
capping bed (No. 7), the highest member of the whole series, is a fine, 
waxy, yellowish or bluish white quartzite. At the base of the Cuchilla- 
bode on its eastern side another fault is met with, but not of great 
importance in amount of throw, and only of small length; by this fault 
the greyish white, and locally very gritty, quartzite bed (Wo. 5) is 
brought up against the slates (f). About a quarter of a mile further 
east this gritty diamond bed is covered by the slates (f). The limestone 
bed (2?) and slates (f!) do not appear at this spot (possibly they are 
only hidden by debris), though they both appear in force half a mile 
or a mile to the north-by-west. Succeeding these beds comes a grit and 
quartzite formation agreeing in position with No. 6, and agreeing closely 
in lithological characters with the grits and quartzites of the Ballagarige 
(0302105) 
