190 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 21, 



Fig. 3. — Section of the Permian rocks of Clent Hill. 



Clent Hill. ' 



1. Coal-measures. 



Alternations 

 Permian. 



{:: 



Bunter. 



{ 



of red marl and sandstone, with two calcareous 

 bands. 

 Breccia, about 450 feet thick. 

 Pebble-beds or conglomerate. 

 Upper brick-red and variegated sandstone. 



in this area occurs at the south end of the coal-field, between the 

 coal-measures and the summits of the Clent Hills and the Bromsgrove 

 Lickey. The diagram (fig. 3) shows their arrangement. 



The breccia here consists of pieces of various rocks imbedded in a 

 hardened, red, marly paste. Like those near Enville, they are gene- 

 rally angular, or have their edges but slightly rounded. Their sides 

 are often flattened, sometimes polished, and occasionally scratched. 

 They rarely exceed a foot in diameter. On Clent Hill the fragments 

 consist of felstone-porphyry, greenstone-porphyry, greenstone-amyg- 

 daloid, ribboned slate, black and green slate, red sandstone, quartz- 

 conglomerate, and felspathic ash. In a section near Romsley, stones 

 of the same nature were found, including altered sandstone, conglo- 

 meratic ash, banded felspathic ash, quartz-rock, variegated marl, 

 quartz-pebbles, altered slate, ribboned slate, and blocks of a coarse 

 conglomerate. 



The igneous rocks of Staffordshire are very different from those in 

 the breccia ; and none of the other kinds quoted occur in that di- 

 strict, with the exception, perhaps, of the quartz-rock, which might 

 be compared to that of the Lickey. There is, however, good reason 

 why the quartz- rock of the breccia should not have been derived from 

 the altered Caradoc of the Lickey. This ancient ridge is bounded 

 by two faults, one being a downthrow on the east, and the other a 

 downthrow on the west. On the east the white sandstone, and on 

 the west the Permian rocks abut against it : see fig. 4. The con- 

 tinuous ridge of the Bromsgrove Lickey and the Clent Hills, crowned 

 by the breccia, is higher than the Caradoc Hill ; the Permian rocks 



Fig. 4. — Section of the Bunter, Permian^ and Caradoc rocks of the 



Lickey. 



W. Bromsgrove Lickey. E. 



1. Altered Caradoc. 2. Permian marls and sandstone. 3. Breccia. 4. White 

 beds (Bunter). 5. Red marl (Keuper). 



forming a fine escarpment, the beds of which have a westerly dip. 

 Were they prolonged from a quarter of a mile to a mile, the higher 



