dand6t plateau and spur. 165 



The gypseous marl at the base of the cliffs is greatly eroded, harder 



masses projecting from one to two hundred feet ; 

 The series. . . 



deep gullies are also cut in it, and some of these are 



naturally bridged over in places by the marl. This is succeeded by thick 

 purple and greenish variegated clays or shales^ passing upwards into 

 purple sandstones. Then comes the dark olive and blackish shaly zone 

 above mentioned, passing downwards into thin light-coloured sandstones, 

 and containing some markings like those of Annelides. Black and 

 greenish films separate many of the beds, and the shaly part contains a 

 thirty-feet red band ; the shales are generally micaceous. Owing to the 

 supposed fault or slips, these beds appear to be succeeded by a thick mass 

 of reddish purple sandstone exactly similar to No. 2, becoming flaggy 

 towards the top, and, from its great thickness, this is supposed to be 

 nearly doubled by other slips or faulting. More red sandstones overlie 

 this, shaly underneath, and in this shaly portion is a bed or vein of 

 reddish and white gypsum, 30 feet thick, and in character quite resem- 

 bling that of the red marls below. Grey, silicious, and calcareous coarse 

 grits succeed, very dark in colour and alternating with dark shales below ; 

 the silicious and calcareous beds may represent the magnesian sandstone 

 No. 4, and the lower portion would occupy the place of the silurian zone 

 No. 3. Then follows the red, flaggy, salt-pseudomorph zone No. 8, 

 including layers of grey shale and thin grey sandstone, in the lower 

 part. Over this is a considerable thickness of dark shales, with a twelve- 

 ■ feet band of metamorphic-pebble conglomerate evidently that of the 

 olive group. No. 10, and above these are reddish and white sandstones, 

 projecting from below the shaly talus, at the foot of the Wychler clifi^, 

 the vertical portion of which, at the fine springs below the scarp, 

 measured 179 feet. 



Section below Dandox viiiage and cliffs. 

 Groups. Ft. 



f Nummulitic limestone ... ... ... ... 200 



I Coal-shales, traces to westward 

 Talus ... ,,, ,,. room for 150 feet of beds 



( 165 



