86 VOLCANIC AREA OF EAST MORETON, ETC., DISTRICTS, Q., 



and porphyry, solvsbergite and basic rock (Text figs. 2 and 8). 

 Mt. Delaney is capped above 800 feet with rhyolite. The base 

 of the mountain, which probably overlies Neurum granite, is 

 composed of a very knotted granulite, which becomes less and 

 less knotted as we ascend. The knotted structure is due to 

 metamorphism by the underlying granite. Mt. Mee is partly com- 

 posed of phyllites, slates and mica schists, partly of glaucophane 



7- G"«"a.rlt.te. 



t do. 



10 Kc-.ili.Sek. 

 M. Breccia. 

 S Slite. 

 8. Quartets. 



Fig. 8. -Section from Mt. Delaney to Delaney 's Creek Store along E F in Plate vi. 



schists, anthophyllite schists and later basalts. Some of the 

 hornblendic schists appear to be interbedded with the phyllites. 

 Probably they represent highly altered tuffs and lavas erupted in 

 the period of sedimentation which saw the phyllites deposited. 

 They are probably coseval with the greenstone dykes, and intrude 

 the older strata (Plate vi., and Text figs. 9, 10). 



In the Cooran district we meet with the Palaeozoic rocks of 

 Gympie age, about one mile west of Cooran, along the railway 

 line. These are very hard, metamorphic slates, quartzites and 

 schists. Similar rocks occur on the Woondum Tableland and 

 round the base of Mt. Pinbarren. They are highly contorted, 

 faulted, and are traversed by quartz reefs and igneous dykes. 



The soft shaly Kin-Kin phyllites, not unlike Bendigo graptolite 

 slates in handspecimens, do not seem to be as old as Gympie, but 

 further research is needed. They are highly contorted and rich 

 in quartz veins. The adjoining Burrum strata probably overlie 

 them unconformably. 



In the Eumundi-Cooroy railway cuttings (Text fig. 11b) the 

 lavas and tuffs, and occasionally tuffaceous sandstones, are seen 



