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PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 27, 



" I had no opportunity of ascertaining the relative position of this 

 formation, and the volcanic grit of Kakaunui : the latter on the coast 

 is exposed to the height of eight or ten feet, and dips to the south at 

 a considerable angle ; it contains a great variety of crystalline volcanic 

 products, as hornblende, augite, garnets, &c. It is covered uncon- 

 formably by the usual diluvial beds of gravel and clay, as in the an- 

 nexed sketch. 



Fig. 3. — Section of the Coast at Kakaunui. 



Clay without organic remains. 



Diluvial gravel, consisting chiefly of quartz, trap, 

 amygdaloids, &c. 



" A mile south of Kakaunui, strata of a tertiary blue clay first ap- 

 pear ; they contain numerous shells of species that inhabit the neigh- 

 bouring sea, corals, a few traces of fishes, and small portions of wood. 

 In some localities the clay is capped by a thin layer of sandstone. 



" The following section of the coast will show the relative position 

 of this tertiary clay. 



Section of the Coast near Kakaunui Point. 



1. Diluvial clay, 2. Gravel. 



3. Indurated sandstone with shells. 



4. Blue clay with shells- 



5. Volcanic grit, at Kakaunui Point. 



" Midway between the Bluff and Moeraki, the clay contains layers 

 of septaria, varying from one to five feet and more in diameter. Hun- 

 dreds of these nodules, which had been washed out of the undermined 

 clay chffs by the encroachment of the sea, were scattered along the 

 beach, as represented in the sketch, fig. 5. Some were subglobular. 



Fig. 5. — Onekakara Bay, looking northwards. 



1 . Diluvial clay. 



2. Gravel. 



3. Tertiarv clav. 



4. A group of Septarian boulders, called 



bv the whalers the " Ninepins.' 



5. The" White Bluflf. 



