160 MR. C. FOX-STRANGW.VYS ON SECTIONS AXONG THE [May 1 898, 



Boiighton Station, where a thick bed of pinkish sandstone crops 

 out. 



At the foot of the escarpment formed by these hills the line 

 enters on the great dip-slope of the Bunter Pebble Beds, bnt there 

 is no section in them till we get within a mile of Ollerton, where a 

 long cutting shows soft current-bedded sandstones with a few 

 pebbles, which gradually become more massive and contain the 

 pebbles arranged in distinct lines. Cuttings in similar beds con- 

 tinue at intervals for the next 5 miles, the best sections being at 

 Ollerton Station, south of Broomhill Grange, and at Bradmer Hill. 

 At the second of these there are a number of small faults hading 

 west, which give the beds a peculiar jointed appearance. 



The Lower soft Red and Mottled Sandstone of the Bunter, which 

 crops out at the foot of the escarpment formed by the Pebble Beds, 

 occupies a breadth of about a mile between the last cutting and 

 Warsop ; but as the railway is carried on an embankment there are 

 no sections in the rock. 



West of Warsop Station the line crosses the great dip-%lope of 

 the Magnesian Limestone, the first section reached being at the 

 junction with the Midland Railway near Parson's Wood. Here 

 there is an interesting exposure, of which a sketch is given below, 

 showing the Permian Marls and Upper Limestone resting uncon- 

 formably against a boss of the Lower Limestone. The disturbance 

 of the Limestone before the marls were deposited is very striking. 



Fig. 1. — Section at Warsop Colliery Junction^ near SooJchohne 

 Lodge, showing Permian Marl and Limestone resting uncon- 

 formahly on Lower Lim.estoiie. 



W. I 



a=Red sandy clay, with some pebbles and limestone-fragments. 

 6= Thin flaggy limestone. c= Marly clay. 



d='Red marl. e=: Massive limestone. 



[Height of section = about 10 feet.] 



These marls are seen again immediately west of Parson's Wood, 

 where there appears to be some disturbance in the beds, thin beds 

 of contorted limestone being mixed up with the marl. The marls 

 continue as far as the Midland Railway (Mansfield and Worksop 

 branch), as is correctly shown on the old Geological Survey map, 

 but they cannot be of any great thickness, as the cuttings in the 

 lower railway are entirely in limestone. 



In this district the Permian beds consist of a lower and upper 



