544 GREAT SERPENTINK BELT OF NEW SOUTH WALES, v., 



and Tam worth lay on the same horizon, and that at Moonbi was 

 rather older, though all might be classed as of Middle Devonian 

 age(ll). 



On account of the lithological nature of the granite at Moonbi, 

 and the characteristic topography of the areas occupied by that 

 rock, Mr. E. C. Andrews concluded that it was the equivalent of 

 the sphene-granite-porphyry of northern New England, which 

 invades Permo-Carboniferous sediments, and is presumably of 

 early Mesozoic age(12). 



A beautiful illustration of the red "marble" of Nemingha has 

 been published by the Technological Museum, and notes made 

 thereon by Mr. Laseron(13). 



In the first part of the present series of papers, the writer 

 stated that the Moonbi limestone was on the same horizon as 

 that at Seven Mile Creek, and accepted the view of Messrs. 

 David and Pittman, that the latter was the faulted equivalent 

 of the Tam worth and Moore Creek limestones. He doubted the 

 unconformity between the agglomerates of Cleary's Hill, north 

 of Tamworth, and the underlying claystones, and considered 

 that the former was the equivalent of the Baldwin Agglomerates, 

 and formed the lower part of the Upper Devonian system, which 

 lay conformably on the Middle Devonian rocks. In addition, it 

 was suggested that there was a strong fault running approxi- 

 mately in the valley of the Peel and Cockburn Rivers(14). 



This divergence in the conclusions drawn from palseontological 

 and stratigraphical evidence as to the correlation of the lime- 

 stones, and the different interpretation placed on the agglomer- 

 ates, were clearly matters calling for investigation. Moreover, 

 it seemed possible that, by detailed mapping, horizons of refer- 

 ence might be discovered, by which the tectonics of the district 

 might be worked out, and a closer approximation made to the 

 true thickness of the formations present, than was formerly pos- 

 sible. There were also the problems of the conditions for the 

 depositi(m of radiolarian sediments, and the mode of origin of 

 the "intrusive tuffs." 



The area studied stretches along the northern side of the Peel 

 River from Moore Creek to JS'emingha Creek, a distance of 



