10 



can be traced across Hunter Gully and over the eastern ridge. 

 On this ridg^e the limestone has a considerable spread, and the 

 intervening phyllites have been somewhat altered by the 

 intrusion of quartz veins, which has given these beds a hard 

 and siliceous texture, and developed in connection with the 

 limestone much black cherty-quartz. This hardening of the 

 beds has led to their making prominent features on the top 

 of the ridge. 



The beds can be easily followed down the eastern slopes^ 

 into Cock's gully; the irregularities of the strike (as shown on 

 the map) are occasioned by the beds following around the 

 projecting spurs at the head of the gully. They next pass over 

 the saddle of the Montacute Mine ridge, where the limestone 

 just touches the east and west boundaries of Sees. 5528 and 

 5584. From thence it slopes very gradually, at a low angle- 

 of dip, along the eastern side of the hill, which carries it ta 

 the south of the northerly bend in the Sixth Creek (Sec. 5529) 

 and into a north and south valley, which has its confluence 

 with the Sixth Creek at the bend just referred to. The out- 

 crop along the slope is somewhat obscured by bracken thickets, 

 but it can be followed by surface stones, and about half-way 

 down the hill it is seen in strong features at a prospector's 

 costeen. 



The limestone can be well seen on the opposite side of 

 the valley, but at a different angle. A small fault (probably 

 an extension of the same as that in which the Montacute Mine 

 is situated) has led to differential readings of dip and strike on 

 either side of the valley, and has given a southerly thrust to 

 the beds on the western side of the fault. On the eastern side* 

 the dip is south-east, at about 28^^, while on the western side 

 the dip is south, at 18°. 



The easterly trend of the limestone, from this point, can 

 be easily followed through Sec. 5529, where it follows the face 

 of the hill, parallel with the Sixth Creek, and crosses the latter 

 a little before it makes a we.sterly bend near the eastern side 

 of the section mentioned. A quartzite underlies this lime- 

 stone and forms a low scarp that can be followed for most of 

 the distance from the eastern side of Hunter Gully, over the 

 saddle of the Montacute Mine ridge, and to the limits of its 

 outcrop, described above. 



Outcrop (c). A third bed of bluish limestone occurs in 

 Hunter Gully, a little higher up than Limestone (h). It 

 crosses the gully, but appears to run out on the eastern ridge 

 near the eastern boundary of Sec. 5527. In the north and 

 south valley (referred to above), confluent with the Sixth 



