1S6 



PROF. T. T. GEOOM ON THE GEOLOGICAL [Feb. I9OO, 



Fig. 28.— Map of the 

 Osebury Rock, n 

 (See p. 185.) 



district around 

 ar Knightwick. 



chips of rock such as 

 characterize the breccia. 

 The sandstone is soft, 

 bright red, and much 

 false-bedded. It is well 

 exposed again in some 

 quarries south of the 

 road, and also at the 

 railway-bridge, where it 

 loses its bedded appear- 

 ance and becomes mas- 

 sive. This sandstone 

 agrees in every way with 

 the Upper Soft Red Bun- 

 ter Sandstone of the sur- 

 rounding district, and of 

 Worcestershire generally, 

 and may, without hesita- 

 tion, be correlated with 

 this rock. On the west 

 the Bunter Sandstone is 

 faulted against a much 

 folded and dislocated 

 series of Silurian shales 

 and limestone and Old 

 Red Sandstone, well ex- 

 posed in the railway- 

 cutting. 



Close to the railway - 

 station the Bunter Sand- 

 stone is faulted against 

 basal Keuper beds consist- 



ing of alternating breccias 



=Keuper 

 Marls 



and sandstones, greatly 

 broken up by small faults. 

 At one spot a band of 

 breccia lies upon an eroded 

 surface of sandstone. A 

 similar section is seen at 

 the railway-station. The 

 Bunter Sandstone, the 

 Keuper Sandstones and 

 Breccias, and the Keuper Marls are all separated here by faults. 

 The pebbles in the Keuper Breccias are very similar to those of 

 the Hatfield Breccia, but seem to be more varied in general cha- 

 racter, tor they include varieties of rock, such as quartzite, fragments 

 of which are rarer in the older breccia. 



[Scale : 6 inches = 1 



arrows represent the directions 

 ol" dip.] 



Heavy broken lines = Faults ; 

 OES = 01d Eed Sandstone. 



A similar series of beds is seen at Alfrick, on the eastern side of 

 the main fault. A mass of Haffield Breccia, noted by Phillips, 1 but 



1 Mem. Geol. Surv. vol. ii (1848) pt. i, p. 160. 



