﻿part 1] IGNEOUS EOCKS OE THE BRISTOL DISTRICT. 



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In two near the middle of the quarry (4 and 5) massive trap was 

 well exposed, and in one (6) at the northern end of the quarry the 

 underlying limestone was penetrated. These excavations, although 



Fig. 2. — Sketch of the little old quarry by the railway, 250 yards 

 north of Bleadon Sf Uphill Station. (Length = about 

 30 yards.) 



6 



Fig. 3.— Bough plan showing the excavations in the little old 

 quarry by the railway, 250 yards north of Bleadon Sf 

 Uphill Station. 



Line of rails 



Position of excavations indicated by numbers i to 6. 

 Scalei-i inch= about o^yards 



they do not prove whether the trap is a sill or a lava-flow, show that 

 it extends as a hand, perhaps 4 feet thick, across the floor of the 

 quarry. 



