BY T. GRIFFITH TAYLOR. 



331 



section 

 like a 



About 500 yards due west from the Lake at this point one 

 reaches the top of the ridge and arrives at a cluster of mine- 

 shafts varying in depth from 5 to 40 feet. This patch of gravel 

 is oval in shape, with the long axis W.N.W. and half-a-mile 

 long (see Plate vii.). The shafts have been abandoned for 

 several years and do not seem to have yielded much gold. How- 

 e\ev, they enabled one to make the rough geological 

 shown at B, fig. 2. The boulders were shaped much 

 potato for the most part, and 

 distributed through a deep red 

 clay. They varied in size from a 

 few inches to 2 feet in diameter. 

 The junction of the boulders and 

 slates was marked by a very hard 

 layer of pebbles (3") cemented by 

 a ferruginous material. At the 

 centre of the field, pipeclay was 

 struck at lower levels. 



Continuing the traverse to- 

 wards the west (see Section, 

 fig.l) slates and quartz reefs were 

 crossed. Brooke's Creek, which 

 flows through a rather narrow 

 valley, with steep bluffs (evidence 

 of youth and uplift) was reached. 

 This creek, which had a fine flow of water (February, 1907), 

 is probably an old tributary of the "Lake George River," 

 which has been revived by the slight uplift which probably 

 accompanied the senkuugsfeld. Enquiring for elevated gravels, 

 I was informed of the Diamond Hill Diggings, which lie 

 half-a-mile from Brooke's Creek in the sharp bend it makes 

 to the west (see Plate vii.). Here occurs another patch 

 of gravels, practically identical in form with that at Grove 

 Creek, with the same direction, W.N.W. The area is about 200 x 

 100 yards, and the lower 15 feet of the deposit (see A, fig.2) consists 

 of a laminated pipeclay. Here, again, the boulders consist chiefly 



Fig.2.— Vertical sections in alluvial 

 shafts. A. Central portion of 

 elevated gravels; Diamond Hill. 

 B. Southern margin of elevated 

 gravels; Grove Creek. 



