MET AMORPHIC ROCKS OF SOUTH DEVOID. 



729 



huge fallen blocks. The dip of these beds varies, but on the whole 

 seems to incline southerly at one spot, being to W. of S. at quite a 

 low angle, about 30°, while the mica-schist to the north, as I have 

 said, seems nearly vertical, or with a high dip towards the north. 

 Moreover, opposite the Old Castle is a good junction, which may 

 mark, if not the main fault, a minor break connected with it, where 

 the chlorite rock with a dip to W. of S., much jointed and marked 

 by cross planes, overlies mica-schist with a dip to E. of S. ; the true 

 nature of the latter is almost concealed by the uniform deep red 

 tint which it has assumed in decomposition (fig. 3). If this chlorite^ 



Fig. 3. — Cliff opposite the Old Castle near Salcombe. 



u. Mica-schist, massive, of deep red b. Chlorite-schist. 



colour. F. Line of fault (?). 



schist and these interbandings have been thrust northward, the 

 chlorite-rock, which occurs in a lane from north of South Mill to 

 north of Combe, might possibly represent the same mass, whose out- 

 crop had been carried further north out of its proper line of strike : 

 but the beds in this inland exposure seem less disturbed and retain 

 their northerly dip where I had opportunity of testing it. 



I was able, during the same favourable tide, to traverse hastily 

 the shore from North to South Sands, passing from the southerly 

 dipping chloritic rock, over the beds marked by Prof. Bonney 

 as showing much disturbance. They consist of a rather thick mass 

 of mica-schist, agreeing in strike to N. of E., but with an almost 

 vertical dip and much folded, possibly bounded on the south by a 

 small fault, where there follow, first, chlorite-beds nearly vertical 

 and with variations of dip, and then, as far as South Sands, interband- 

 ings of chlorite- and of mica-schists, exhibiting a southerly dip. The 

 mica-schist in these cliffs beneath Molt agrees in its appearance with 

 the larger masses occurring to north and to south ; but the greatly 

 diminished thickness would be difficult to explain on this hypothesis, 

 and I incline to consider it a lower band appearing beneath a fold of 

 the chlorite-schist. 



2. Mica-Schist, with (?) Interbandinc/s.— Turning back to the dis- 

 trict beyond Scoble Point, we find, south of its chlorite-schist, mica- 

 schist rising and extending very continuously along the northern 



Q.J. O S. No. 172. 3d 



