f 



1856.] BINNEY PERMIAN ROCKS OF SCOTLAND. 



Fig. 1 . — Section near Ballochmoyle Bridge, 



139 



a. Red-coloured sandstone, false-bedded ; 60 to 70 feet. 

 5. Red sandstone. 

 c. Breccia ; 30 feet. 



Further up the river, a mass of amygdaloidal trap cuts off the 

 breccia-beds on their rise, and thus prevents their lower portions 

 from being seen ; but about half a mile further up the stream towards 

 Catrine, red marls and red and purplish sandstones, of great thick- 

 ness, make their appearance, dipping slightly to the west. In some 

 of the latter there are slight traces of fossil plants and beds of ripple- 

 marked sandstones. 



Fig. 2. — Section from the Glasgow and South-western Railway to 



beyond Catrine. 



Railway. 



Ballochmoyle 

 Bridge. 



Lindsay 

 Bank. 



V 



a. Red sandstone. 



b. Breccia, dipping W. at an angle of 8°. 



e. Dyke of amygdaloidal trap ; running N.W. — S.E. 



d. Red, purple, and variegated marls and sandstone ; dipping W. 



The breccia near Ballochmoyle Bridge dips due west at an angle of 

 8°. Some of the pieces of trap are rounded and others quite angular. 

 The beds are divided by thin veins of sparry matter. The cementing 

 paste has much the appearance of felspathic ash. After the trap- 

 dyke is passed, and its breadth must be near a third of a mile, the 

 sandstones and marls of Catrine Cliff occur. They dip very slightly 

 to the west. As you pass through Catrine to Lindsay Bank you 

 come to a great thickness of red and variegated marls and sandstones, 

 some of the latter being ripple-marked flags, which near Lindsay 

 Bank dip due west at an angle of 30°. I did not go up the river so 

 far as Sorn ; but, from the large fragments of breccia seen in the 

 Water of Ayr, in the river above Lindsay Bank, I suspect that the 

 Ballochmoyle Bridge deposit may again occur further up the river. 

 All the beds about Catrine appeared to me to be very like Permian 



