236 ■wtnot: : geolo&y of kbtch. [paet ii. 



and the coaly shales with ZamicB, &c., near Goonaree oeeurring in a 

 position which (if not faulted would be apparently lower than these 

 marine beds to the west-south-west and south) comes too near the latter 

 to bear out the supposition that they represent higher beds of the 

 Jurassic formation than are elsewhere exposed, unless its thickness alters 

 greatly J nor would it be safe on such evidence as exists to assume 

 that any portions of the plant beds are of cretaceous age. These 

 coaly shales occupy a place with regard to the lower marine fossil 

 zone, just appearing at Sairee, somewhat analogous to that of the 

 coaly beds near Trombow or the carbonaceous shales near Seesaghud; 

 that is to say, they are separated from the lower fossils by a consider- 

 able amount of nearly unfossiliferous rocks ; but this country, although 

 traversed by faults, exhibits nothing to prove the existence of so large 

 a downthrow as would be required to bury the great thickness of upper 

 beds, without marine fossils, overlying the rocks at Trombow. If, then, 

 these marine upper beds are as conformable to the rest of the Jurassic 

 series as they appear to be, it is probable that the upper group has 

 changed greatly in its extension westwards both as to its thickness and 

 fossil contents, while the rocks retain their usual aspect; this change 

 with regard to the fossils being perhaps first indicated to the north 

 of Oogulree, where a few probably marine shells were found as already 

 mentioned. 



The shales which surround the apparently Jurassic rocks east-south- 

 east of Lukput are red, variegated, brown, yellow 

 Lubput. 



and white, often ferruginous and interstratified with 



marls and laterites. Some deep crimson ferruginous boley beds are 

 worked for exportation to form a red dye. Their upper portion on 

 the northern side is a lateritie clay, which weathers away to a fine 

 rusty dust. 



This is succeeded by hard silicious sub-crystalline sandstone dip- 

 ping to the north at 20°, immediately overlying which are the marly 

 ( 236 ) 



