XXXIV. ABSTRACT OF PROCEEDINGS. 



continuity. So far as we know, so great an apparent thickness 

 of pillow lavas has not been elsewhere described and raises very 

 interesting problems as to the depth of the sea and other con 

 ditions under which they were formed. 



The northern face of the Kangat range slopes steeply down to 

 a small lowland in the abnormally wide valley of the Manning 

 Eiver, and is evidently due to differential erosion and soft rocks 

 in the river valley which are bounded by a line of faulting, as has 

 been observed by one of us in the neighbourhood of Bowling Alley 

 Point on the Peel River. Crushed and steeply dipping clayshales 

 and phyllites lie north-east of the broad zone of spilites, and the 

 low land in the river bottom consists on the south bank of a soft 

 pinkish claystone, which dips so steeply where it comes into con- 

 tact with the Devonian rocks (by the small bridge over the rail- 

 way cutting just beyond the sharp bend west of Somerset Station) 

 that it becomes very difficult to see the line of fault. This pink 

 claystone contains a few Permo-Carboniferous Lamellibranchs. 

 North of the Manning River the first cutting exposes a series of 

 conglomerates with a steep dip varying from N. 50° W. at 40° W. 

 to N. 20° W. at 70°, very like the Comerford conglomerate in the 

 Lower Marine Series, and in which the following forms were seen : 

 Deltopecten illawarrensis, Spirife?'a, Martiniopsis subradiata, and 

 Polypora(?J, and more than a mile further east beyond Mount 

 George Station, the railway cutting lies in marine micaceous 

 mudstone dipping from N. 25° E. at 70° to N. at 30°, which traced 

 into the north contain Fenestella, a small Productus and indeter- 

 minable casts, and occasional erratics of quartzite and granite, 

 one-eighth of an inch in diameter, and rise into hills composed of 

 a type of tuffaceous sandstone with a few boulders. These all 

 seem to be Permo-Carboniferous. Immediately north of the rail- 

 way at Mount George, however, lies the northern boundary fault 

 of this small infaulted Permo-Carboniferous area, and north of 

 this lies two masses of very schistose serpentine, the one at Mount 

 George Station a quarter of a mile wide, and the other in Wool- 

 .shed Creek half a mile to the west. Between these outcrops lie 



