BY II. I. JENSEN. 77 



About 4| or 5 miles west of Caboolture the junction between 

 the Palaeozoic phyllites and Triassic sediments is encountered. 

 The phyllites form a belt which narrows towards the north-east 

 and widens in a southerly direction. They cut out altogether at 

 Big Hill, where the sandstones abut on Woodford granite.* West 

 of the phyllites we have a belt of pyritiferous slate and mica 

 schist which also widens towards the south. These formations 

 support a forest vegetation and form a good pastoral country. 

 The vanishing of the Palaeozoic rocks at Big Hill is probably due 

 to a fault running N.W.-S.E., and having a downthrow to the 

 N.E. of at least 500 and probably more than 1,000 feet. The 

 phyllites, mica schists and slates belong to the Gjmipie formation. 

 At Terror's Creek, in the Pine River Valley, a mass of granite 

 occurs; this mass is bordered with slate and mica schists which 

 gradually pass into the less metamorphosed shaly phyllites. The 

 alteration of soft phyllites to hard mica schists and slates is 

 evidently due to the great intrusion of granite in Post-Gympie 

 time. 



Between Peregian and Noosa Heads enormous sandhills line 

 the coast, some of which reach a height of several hundred feet. 

 The sand is kept together by the fleshy creepers, Mesembryan- 

 themum rp-qtiilaterale and Sccevola suaveolns. North of the Noosa 

 River, between Lake Cootharaba and the sea. there is a veritable 

 range of sand reaching a height of 300 feet in Teewah (Seewah) 

 Hill. 



(b) The D'Aguilar Range. — This range extends from the 

 vicinity of Enoggera near Brisbane and Mt.G'rossby near Ipswich, 

 on the south, northwards to the Blackall Range, into which it 

 merges to the west of Landsborough. The highest peaks are Mt. 

 Nebo, Mt. DAguilar (2,438), Mt. Samson (2,251) and Mt. Mee 

 (1,550). Mt. Kobble-Kobble and Mt. Byron are situated on 

 spurs of it. The part of this range which lies north of Mt. Mee 

 is a mere watershed between the Stanley River and east-flowing 

 streams (height 600 ft,). Between Mt. Mee and Mt. DAguilar 



* See Text figs.2-3. 



