BY H. I. JENSEN. 



83 



recent elevation. The average elevation is about 250 feet. At 

 Pomona a peak, Mt. Cooroora, rises abruptly to a height of 1,250 

 feet; and at Cooran there is a similar peak, Mt. Cooran (950 feet). 

 These are composed of columnar, orthophyric comendite, and 

 recall to mind the Glass House Mountains. Surrounding the 

 base of Mt. Cooroora, and stretching thence in a N.N.E. direction, 

 is a belt of country bestrewn with rounded pebbles and boulders 

 of granite, quartzite, slate and porphyry. This appears to be the 

 outcrop of the basal conglomerates of the coal-measure sandstone. 



i i||piiiL- -»/««!. 



* >. *■ 



R - Old filler Gravel . 



B- Basalt . TV - Tracer 



C • Conglomerate , Q ,.(|I/A 



G ■ Cravel ; T- Ti^aceoas sands t-one' i^.-.^z . 



(to***** * 7 'W !"<&»-* '>v 



■ •■'". '..:■.:: 

 S " TRIAS JURA sandstone 

 K - K.n-Kin Phyll.Us 



Fig. 7. -Plan of country round Cooran. 



Going eastward we cross, successively, outcrops of fine gravels, 

 tuffaceous sandstones, and fine-grained sandstone, finding our- 

 selves soon on typical coal-measure sandstone, with exceedingly 

 poor soil stretching to Tewantin on the coast (Text fig. 7). About 



