VI. 



MALVERN STRATA. 



71 



LOWER PALAEOZOIC ROCKS OF MALVERN, ABOVE THE META- 

 MORPHIC SERIES, ABOUT 4660 FEET THICK. 



Name of Group. Name of Rock. 



V. Ledbury Ledbury Shales 



r Downton sand- 

 stone 

 Upper Ludlow 



shale 



Aymestry lime- 

 stone 



Lower Ludlow 

 L shale 



f Wenlock lime- 

 stone 



IV. Ludlow 



III. Wenlock 



II. Mayhill 



I. Cambrian 



Wenlock shale 



Woolhope lime- 

 L stone 

 r Mayhi 11 sandstone 



*- merate 



Black shale 



Maximum 

 Thickness. 



feet. 

 300 



TOO 



Hollybush sand- 

 ** stone 



700 



280 



640 



150 

 500 

 6OO 



50 



500 

 600 



Description. 



Red, grey, and purple marls, shales, 



and sandstones. 

 Sandstone of different tints, with 



red, grey, and yellow marls. 

 Flaggy arenaceous shale, with thin 



shelly limestones. 

 Shales and concretionary limestones. 



Grey sandy shale, with argillaceous 

 and calcareous balls. 



Limestone in layers of nodules and 

 irregular beds, with soft inter- 

 posed shales. 



Grey sandy shale, with thin bands 

 of limestone nodules. 



Rough impure limestone, with or 

 without sandstones. 



Grey (and at the bottom purple) 

 laminated sandstone and shales. 



Sandstones and conglomerates of 

 grey and purple tints. 



(Interposed hornblendic trap.) 



Thinly -laminated carbonaceous shale, 

 with interposed hornblendic traps. 



Greenish, grey, or brownish sand- 

 stone. 



Base of metamorphic and irruptive rocks. 



