52 



near camp. It is exposed in cliffs of the creek both above 

 and below where the road crosses the creek. The beds are 

 horizontal and up to 12 ft. in thickness; the base of the 

 beds is, usually, a few feet higher than the normal level 

 of the creek. The limestone varies from soft, loosely-cemented 

 globular concretions to a compact rock, often finely brecciated. 



Went up small creek, adjacent to the camp, going north. 

 At a distance of 200 yards, up the creek, the rocks were found 

 to be argillaceous flags: dip S. 20° W. at 75°, increasing to 

 85^. At a further distance of 200 yards, further up, thick 

 beds of dolomitic limestone, in rolling folds, with an average 

 dip of 40°. These beds show some extraordinary effects of 

 crush — laminated, contorted, broken, passing into crush 

 conglomerate in which dolomitic limestones and shales are 

 mixed together. This broken area extends for a, width of 

 50 yards, giving no evidence of dip, and is underlain by con- 

 torted slaty flags, with a dip S. 20 E. at 80°. 



A little higher up the creek, another bed of dolomite 

 (or dolomitic limestone), 9 ft. in thickness, is included in 

 disturbed and broken slates which are in vertical position. 

 Thick quartzites follow a ridge that forms the crest of a 

 very pointed and conspicuous hill on the north side of the 

 camp, and are underlain by very thick dolomite, with a dip 

 of 25°. These beds occupy the creek for one-eighth of a 

 mile, are finely crystalline in texture, and, in quantity, 

 sufficient to rebuild the Westminster Houses of Parliament. 

 The thick dolomite is followed, in descending order, by 

 laminated shales, at a dip of 80°, including a bar of dolomite, 

 and these are underlain by a dark-coloured contact (garnet) 

 rock, which has undergone alteration by contact with an 

 igneous dyke. 



A greenish, basic dyke, 24 yards wide, runs up the face 

 of the hill on the eastern side of the creek, and outcrops on 

 top, on the south-western side of the saddle from which rises 

 the precipitous peak of quartzite, already referred to. It is 

 20 yards wide at the top of the hill and throws out lateral 

 dykes. 



Higher up the creek the section shows rotten purple 

 shales having a strike S. 20° W. with dip at 90°. 



The country now becomes more or less reticulated with 

 basic dykes, over a breadth of a quarter of a mile, or more. 

 One very prominent dyke that intersects the creek is 25 yards 

 wide, bordered by shales on the one side and quartzites on 

 the other, which show contact metamorphism. 



Followed up the main north-eastern creek for a while. 

 In the alluvial of this and other creeks were pebbles of 

 brecciated limestones, as well as ''greenstones" derived from 

 intrusive dykes. Crossing the low range, on the eastern side, 



