234 ftREAT SERPEXTINE-BELT OF NEW SOUTH WALES, vi., 



serpentine at Crow Mountain. North of Crow Mountain Creek, 

 the serpentine commences to widen out. Where it crosses 

 Eumur Creek, the western portion is a well marked zone of 

 serpentine-oossan, here a beautiful flesh-pink carbonate-rock with 

 clear green chalcedonic segregations (1, Pt. iii., p. 678). The cross- 

 section of the serpentine bands, from west to east, is approxi- 

 mately as follows : — 



Pink carbonated serpentine with limonitic bands... 20 j'ds. 



Massive and schistose bastite-serpentine 100 ,, 



Altered dolerite (fine-grained and gieen) ... ... 20 ,, 



Highly silicified "Eastern" rocks ... ... ... .30 ,, 



Grey schistose serpentine ... ... ... ... 100 ,, 



Silicified and contorted phjdlites 10(j ,, 



Black schistose serpentine ... ... ... ... 6 ,, 



Vesicular lime-rock, etc. ... ... ... ... 4 ,, 



400 yds. 



A quarter of a mile south of Eumur Creek is a roughly 

 circular patch of coarsely crystalline albite-rock occurring in the 

 serpentine (1, Pt. iii., p. 691). 



The serpentine gradually widens northwards near Woods' 

 Reef, where it is two miles wide, and splits into two great lobes 

 as shown in the map. One is crossed by Ironbark Creek in a 

 deep gorge. The rock is chiefly schistose and bastite-serpentine, 

 with occasional dykes of peculiarly altered dolerite(l, Pt. iii., 

 p. 6 90). East of Woods' Reef, and again east of Crow Mountain, 

 are small parallel sills of serpentine. In the serpentine on 

 Ironbark Creek, Porter has noted the occurrence of a vein of 

 garnet with vesuvianite(25). The mapping of the Crow Mountain 

 serpentine is a modification of Stonier's map of 1896(21); that of 

 Woods' Reef is a modification of Pittman's unpublished map of 

 1881(9), for the use of which I am indebted to the Geological 

 Survey. 



North of Ironbark Creek, there is no serpentine for three miles. 

 It commences again at the old Paling Yard Diggings, which were 

 described briefly by Anderson in 1888(12). It is composed of 

 schistose serpentine to the south, but reaching the Paling Yard 



