1G4 • W. BLANFOED, WESTERN IXDTA. [PaUT IT. 



4. Alternations of fine and coarse and gritty sandstone, with bands of 



conglomerate and of sandy clay — the latter more or less nodular, mot- 

 tled -with ferruginous markings, and containing highly fermginous 

 gritty concretions. In the conglomeritic hands are rolled pieces of 

 ironstone, apparently of oxydised clay ii'on ore, together with small 

 quartz pehhles. Just ahove one of the clay hands there is a bed, 4 to 

 5 feet thick, of ironstone, apparently a sandy red hjematite, which 

 appears to he so rich that it might he worked as an ore. 

 The above beds dip at angles varying from 5° to 20", to south-20°- 

 east. 



5. Fine sandstone dipping S. E. at ahont 5° : 



6. Massive grits, chiefly composed of quartz sands much false hedded and 



white in colour, resembling some of the coarser beds of the Damudas, 

 except that, as a rule, they are harder and less felspathic : 



7. Massive fine white sandstone, speckled yellow, somewhat gritty, with 



interstratifications of yellow shales. Millstones are cut from these 

 beds, which being free from joints and not difficult to work, are 

 well adapted for building stones. Blocks of great size might be pro- 

 cured. Dip. 10° to S. 25° E. : 



8. Thin sandy shales and calcareous flags containing oysters. In these there 



is a band of nodular limestone : 



9. Hard coarse grits and conglomerates. 



A small fault appears to occur here^, and trap is brought in. This 



may be due, however, not to faulting, but to unconformable superposition. 



Trap continues for 40 or 50 feet ; then beds similar to the last are 



repeated, and upon them, fine massive sandstone with shaly sandstone 



resting upon it. This is the highest bed seen, and it is covered by trap. 



The above section extends for a mile, and as the average dip is not 



less than 7°, there must be 600 or 700 feet of 



beds exposed, unless some unseen fault produces 



a repetition. It will be seen hereafter that this is not nearly the full 



thickness of these rocks as exposed some distance further, about 25 miles 



to the south-west. 



( 3-2G ) 



