ME. L. M. PARSOXS OX THE CAEBONIFEBOTTS [vol. Ixxili, 



part- of the inlier, and yield a faima chai-acteristic of horizons that 

 may be conveniently expressed by the formula Dg-Dg. Chei*t 

 occurs somewhat sparingly, but is seen easily in situ in the various 

 excavations (marked E^ etc. on the plan) made in the platform 

 that constitutes the floor of the main quarry. 



The beds of this subdivision of the sequence are repeated by 

 reversed faulting parallel with the strike. The faults responsible 

 for this repetition are indicated on the plan at C and E. 



Fig. 2. 



ROUGH PLAN OF 

 BREEDON CLOUD WORKS 



TRIAS 



TRIAS 



Sidings 



The dip of the strata varies in degree from 48° to 60°, while the 

 dii'ection varies from directly south at the southern end of the hill 

 to north-west near the position D half-way towards the northern 

 end of the works. Breedon Cloud appears to be the remnant of a 

 faulted dome, the eastern portion being thrown down by the 

 pre-Triassic Breedon Fault. 



Jointing is common, and in many places the direction of the dip 

 is disguised, particularly in that part of the quarry that lies 

 immediately north of the southern fault. There are many pockets 

 filled with loose ' dolomitic sand ' derived from the disintegration 

 of the yellow dolomite, or from the thin overlying red dolomites. 



Overlyino' the vellow dolomites are a few feet of thinlv-bedded 



