PROCEEDINGS OP SECTION C. 185 



LiUle Woody Island. — This island is made up of the same series 

 of marine rocks that one finds on the N.W. side of Woody Island. 



The most noticeable feature about the strata here is that, although 

 the strike is 40° W. of N., the dip of the beds is in a direction 50° E. 

 of N.,and at an angle varying from 20° to 30° in different places. We 

 then have the strata of Woody Island and Little Woody Island respec- 

 tively representing the opposite legs of a denuded anticline whose axis 

 is somewhere between the two and striking in a direction 40° W. of N. 

 (see Plate VI., Fig. 2). 



Similar cherts and sandstones to those occurring on Woody Island 

 are found here, and they contain Belemuites, Maccoyella, Nucula, &c., 

 in abundance. 



Rocky Patch off Fraser Island. — In the same line of strike as the 

 rocks of Little Woody Island, and just off Fraser Island, in a S.E. 

 direction, there is exposed at low tide a small area of cherts similar 

 lithologically and in fossil contents to the cherts of Little Woody 

 Island. The dip is 25°, dir. 50° E. of N. 



Undoubtedly this rocky patch is an extension of the N.E. leg of 

 the anticlinal fold just as the cherts, &c., of Picnic Island and Duck 

 Islands are extensions of the S.'W. leg of the anticline (see Plate lY., 

 Fig. 2). 



Round Island. — This island is made up of freshwater sediment.;, 

 there being no marine representatives at all. The beds are shales 

 containing abundant carbonaceous remains, but not concentrated to 

 any degree, and a white loosely aggregated argillaceous sandstone 

 which seems to be rather characteristic of the freshwater beds of the 

 area. The strike is the same as that of the beds on Woody Island, 

 and the dip is 20°, dir. 50° W. of S. — that is, these beds form part of 

 the S.W. leg of the anticlinal fold above referred to. 



Dayman Point, Urangan. — This is the nearest point on the main- 

 land to Round Island, and the outcropping rocks here are seen to be 

 sandstones and shales horizontally bedded. Carbonaceous remains are 

 abundant, and in the sandstones at this point are the remains of tree- 

 trunks in many cases largely replaced by iron oxide and pyrites. 

 One trunk 25 feet long and 9 inches in diameter was seen imbedded 

 in the sandstone. 



This point seems to mark the axis of a synclihe, as it will be shown 

 that to the west of this point the dip is in a N.E. direction (Plate VI., 

 Fig. 2). 



Pialha and Point Vernon. — To the west of Dayman Point, and iii 

 the neighbourhood of Pialba roimd towards Point Vernon, the fresh- 

 water series is again met with, and consists of sandstones and shales 

 striking 40° W. of N. and dipping 30° in a north-easterly direction. 

 We thus have the S.W. leg of a synclinal fold whose axis lies in a 

 direction N.W. and S.E. through Dayman Point. At Point Vernon 



