176 ON THE GEOLOGY AND PETROGRAPHY OF BATHURST, N.S.W., 



Speaking of the country on the Western Road, between Junc- 

 tion Hill and Bathurst, he says,* "The rounded blocks, which 

 when free upon the surface, appear to be immense boulders, or 

 erratic blocks, are not such, but large glandular or globular masses, 

 often connected by veins, and evidently intruded subsequently ; 

 these may be seen in many places in the road-side sections, 

 imbedded in coarse granite, traversed by quartz veins in all 

 directions. 



" The foot of the hill is composed of disintegrated granite } 

 forming a loose sand. About one mile east of the river the granite 

 is overlaid by clay slate, ' killas.' Granite, with fragmentary 

 trap-rock, appears to form the whole of the country to Macquarie 

 and Bathurst plains ; the plains are alluvium, and, judging from 

 the debris in the water-runs, most probably investing granite. 



" Lead mines were reported as occurring at Brucedale, near 

 Peel, about eight miles from Bathurst, a little eastward of north, 

 the residence of Mr. W. Suttor ; the road then contains much 

 micaceous sand and quartz pebbles. 



" On descending the last hill, about two miles from the house, 

 blocks of decomposing granite are occasionally observed ; upon 

 crossing the creek it is found, in place upon a ridge running nearly 

 east and west, associated with mica slate, much disturbed, passing 

 into clay slate ; the dip of the clay slate is west north west. 



" To the eastward of south, half a mile from Mr. Suttor's house, 

 a mine has been opened, in which the following varieties of ore 

 have been found : — 



" Sulphuret of lead, with arsenical pyrites. 

 " Green phosphate of lead, in veins in the clay slate. 

 " Arsenio-phosphate of lead, and 

 " Argentiferous sulphuret of lead. 

 " The cross lodes make their way west north west through clay 

 slate, the angle of dip being 50°. 



* Geological Survey Papers, laid upon the Council Table by the Colonial 

 Secretary and ordered by the Council to be printed ; 2nd December, 1851. 



