SEC. 9.] COUNTRY WEST OF DHENODUE. 217' 



by several strong ramps. In the part of this nearest to the village, 

 the rocks are greatly disturbed, dipping to the north at high angles, 

 and a bed of coarse, ferruginous, quartzose grit, about 3 feet thick, 

 contains obscure casts of large bivalves, one of which resembled Trigonia 

 Smeeii, both rock and shells much resembling the beds and some of 

 the contained fossils which overlie the Zamia bearing shales at Nurrha. 

 Although the place has a faulted appearance and the high dip is very 

 local, no distinct throw cotdd be made out. The rocks in the vicinity 

 have the usual aspect of the upper beds, and the balance of evidence is 

 in favor of this being another instance in which marine remains occur, 

 though rarely, in the otherwise plant-bearing strata of the upper group. 



The following is a carefully-measm-ed north and south section 

 across the edges of the more highly-inclined beds, the horizontal thick- 

 nesses deduced in the usual manner :— 



Descending order. 



11. — Soft white sandstone ... ... ... dip N. 45° 



10. — Bed and wWte, variegated flaggy shale .. . ... „ „ 



9. — Nearly blank, some white sandstone here and there... 

 8. — Variegated, purple and white, blotched and purple, 



ferruginous beds, obliquely laminated .. . ... „ „ 



7. — White sandstone with ferruginous layers ... „ N. 50° 



6, — Sandy ferruginous purple beds ... ... „ „ 



5. — White sandstone, very coarse ,,. ... „ „ 



4. — Coarse, purple and yellow sandstone, with ferruginous 



layers ... ... ... ... „ „ 



3. — Coarse reddish and yellow sandstone ... ... „ „ 



.2. — Purple, ferruginous sandstones, with quartz grains, in 



which a band containing obscure casts of marine 



shells occurs ... ... ... ... „ „ 



1. — Flaggy, greenish white sandy beds ... ... „ „ 



V94 6 

 (A vertical silicious east and west ramp of 3 feet, one foot very silicious). 



The in-egular outcrop boundary of the stratified traps along the 



Stratified traps to the south-western side of the central plain here 



westofMhurr. • -j ^^ -li l ^ i ■■ 



coincides generally with a strongly marked es- 

 carpment formed of the upper Jurassic rocks, overlaid by the abruptly 



( 217 .) 



Ft. 



In. 



... 35 







... 28 







... 10 







... 35 







... 91 



6 



... 15 







... 268 







... 101 



6 



... 95 



6 



... 15 







to vertical 100 







