247 



ridge, it appears on the south side of the old Montacute minCj 

 and is strongly developed in the Sixth Creek, on the same 

 line of strike : and also in a tributary of the Sixth Creek. Sec- 

 tion 5524. 



Another line of strike of these beds, roughly parallel to 

 the preceding, is met with on the ridge separating the Cork- 

 screw Valley from Pinkerton Gully. In the latter the lime- 

 stone becomes faulted, and is thrown down, on the east side 

 of the gully, towards the bottom; then, passing over the east 

 ridge, it again crosses the Sixth Creek, not far from the lat- 

 ter's confluence with the Torrens, From thence, with a strike 

 east, slightly north, it passes over a steep hill, and is found 

 in the grounds of Mr. Hersey and Mr. Batchelor, on the fol- 

 lowing rise. Maintaining the same general direction, the 

 limestone follows the bed of the Torrens eastward, outcrop- 

 ping for half a mile before reaching the junction of Kangaroo 

 Greek with the Torrens, and is continued beyond that point 

 to the old drive, known as "Anstey's Mine," which was worked 

 in this limestone, and is now beautifully coated with stalag- 

 mitic drapery. 



Two other outcrops of this limestone occur in the bed of 

 the Torrens, in each of which the strike is nearly at right 

 angles to those just described. The more westerly of these 

 outcrops occurs in the southerly bend of the river in Section 

 333. The stone is a dolomitic limestone of a buff colour, and 

 is about 150 feet in thickness. On its southern side it is cut 

 off by an east and west fault, accompanied by great masses of 

 ironstone of metasomatic origin. The beds dip 20*^ west of 

 south, at from 35° to 45°. The limestone follows the left 

 bank of the river for about 200 yards from the angle of the 

 bend, when it rises to the bank at an increased angle of dip. 

 This outcrop is apparently an isolated fragment of no great 

 extent, determined b}^ fault planes. 



On the east side of the same bend in the river, and nearly 

 opposite the confluence of the Sixth Creek, another outcrop 

 of this limestone can be seen in the bed of the Torrens. It 

 is similar m character and thickness to the one last described, 

 and has a like strike and dip, but on parallel lines. Locally 

 it is known as the "Marble Bar." 



This line of outcrop extends in a south-easterly direction 

 for about a quarter of a mile. when, in the grounds of Mr. 

 Hersey, it is cut by a strike fault and ends abruptlv. Here 

 also, as in the case of the faulting of the limestone on the 

 west side of the river bend, the fault zone is marked by meta- 

 somatic deposits, and has been opened out in a small' quarrv 

 for ironstone flux. In the opposite direction the limestone 

 follows the gully in a northerly strike, passing through Sec- 



