A. R. Horwood — Upper Trias of Leicestershire. 79 



at 110 ft. 6 in., 3 feet at 143 ft. 10 in., 2 feet at 156 ft. 7 in., 4 ft. 2 in. 

 at 161 ft. 5 in. In the boring at No. 2 (510 O.D.) 179 feet of Red 

 Marl overlies the Coal-measures with twelve bands of white and brown 

 sandstone from 3 to 1 1 feet thick and a white conglomerate 1 ft. 6 in. at 

 159 feet. At Hugglescote 201ft. 9 in. Ked Marl overlies Coal-measures 

 (at 514 O.D.), and there are five beds of brown or white sandstone 

 from 2 to 12 feet thick. Probably, as these beds are not far from the 

 base of the Red Marl, and Lower Keuper Sandstone underlies them in 

 borings to the east with a basal conglomerate, they represent some of 

 the beds seen at the surface at Orton. 



To the south, at Market Bosworth, several borings have been made 

 which give some idea of the thickness of the Red Marl and the extent 

 of the Lower Keuper sandstones and marls in this district. At the 

 Bosworth Wharf boring at the railway station (300 O.D.) the section 

 was Drift 10 feet, Keuper Marl 332 feet. Lower Keuper Sandstone 

 219 feet, Bunter 178 feet. Breccia 10 feet, overlying Cambrian rocks. 

 In the Red Marl there are no sandstone beds of importance, but in the 

 Lower Keuper Sandstone two beds, each 18 feet thick, represent those 

 seen at the surface on the west. In the Kingshill Spinney boring 

 (300 O.D.) there was 126 feet Drift, 246 feet Keuper Marl, 322 feet of 

 Keuper Sandstone, 124 feet Bunter, and a Breccia 30 feet overlying 

 206 feet Stockingford Shales. The above is from Mr. Plant's MSS. 

 He regarded the 206 feet Stockingford Shales as Carboniferous rocks. 

 Professor H. Browne considered the whole 1,030 feet as TVias. The 

 lower part, he says, was in coarse sandstone with lounded pebbles, 

 evidently Bunter conglomerates, and he considers this fixes their 

 easterly limit in this region. To the north-east of Charnwood Forest 

 they are developed much further east, however. It is probable the 

 thickness assigned to the Lower Keuper is excessive and that half of 

 this may be Bunter Sandstone. 



The boring at Cow Pasture, 800 yards north-east of the church 

 (380 O.D.), as given by Mr. Plant and corrected by Professor Brown, 

 is as follows 



547 



At 500 feet an igneous rock was met with. The Trias here has 

 thinned out considerably as it approaclies tlie pre- Carboniferous 

 ridge. At Lindley Hall in the extreme south 660 feet of Trias 

 were pierced, some of which^ at the base, were probably Lower 

 Keuper Sandstone. 



Since the Orton Sandstone forms so distinct a feature locally and is 

 probably to be correlated with the Castle Donington, Kegworth, and 

 Diseworth Beds in the Red Marl, we propose to give them this name, 

 Orton-on-the-Hill Sandstone Group, to distinguish them from those at 

 a higher horizon in the Red Marl at Dane Hills, Croft, Narborough, 

 and elsewhere. 



