572 



GRKAT SKMPENTINE-BELT OF NEW SOUTH WALES, V., 



map of this is given in Text-fig. 13. It recalls some of the 

 features of the Hyde's Creek complex(l7). The western side of the 

 area sketched consists of normal, steeply dipping, banded chert, 



Dolerite 



Md^neNfe-Keratophyre 

 Breccia & AfJfSlomerar 



m " 



Tuff wifh pebbles 



Fig.13. — Sketch Map, Macllveen's Igneous Complex (Neniingha Parisli). 

 which, at its contact with the keratophyre, is impregnated with 

 haematite, or is changed into red jasper. The line of contact runs 

 in a N.N.E. direction for half a mile, and then is deflected into a 

 direction a little west of north. The keratophyre, east of this 

 line, varies from a rock with very little iron-ore, to one rather 

 rich in magnetite, which has been more or less replaced by 

 haematite. There are also vesicular and slaggy varieties, as at 

 Hyde's Creek. The keratophyre includes large fragments of 

 limestone, and an intimate, breccia-like mixture of limestone, 

 chert, and magnetite-keratophyre; it is also traversed by small 



