TATE : INGLETON GRANITE. 
481 
Above and below this rock shades off conformably into grey- 
green indurated ash-beds, a layer of which also occurs in the middle 
of the rock in the quarry. Flakes and lenticular fragments of vol- 
canic mud, scooi3ed olf the old sea-floor, have been caught up in the 
superposed volcanic ash matrix, near to the line of junction, and 
some of these entangled patches when freshly exposed in the quarry 
show internally a septarian arrangement, the outer portions flaking 
oft' along faces coated with a lustrous film ; the inner surface subse- 
quently weathering to a variegated dull purple or brownish tint. 
The quarry in (Jhapel-le-Dale may be inspected on the way to 
or from Ingleborough.* 
* Read before Section C (Geology) British Association Meeting, held at 
Leeds, 1890. 
