72 



The till has the character of a red clay with bluish streaks, 

 and rises suddenly in the cliff face in the form of one or two 

 nodular inliers, around and over which the sediments of the 

 Eocene sea has gathered. The clay carries erratics to a limited 

 extent, but numerous stones of this character, liberated by the 

 waste of the cliffs, lie at their base and along the beach. 



About a mile further to the westward the glacial clay is again 

 seen in a much more important exposure, extending in a line of 

 cliffs for about a mile in an east and west direction. The cliff 

 face has a maximum height of about 50 feet, and the thickness 

 and character of the strata vary within the distances of a few 

 yards in a very remarkable manner. The following two sections 

 can be seen on the same horizon within a distance of less than 

 one hundred yards : — 



EASTERN SECTION. 



1. Recent — Travertine limestone ... ... ... 20 feet 



Dark-coloured clay ... ... ... 10 " 



White and pink-coloured argillaceous 

 sands, base not exposed; thickness 

 above sea level ... ... ... 20 " 



2. Pre- Tertiary 

 {Glacial) — 



2. Pre-Tertiary 

 {Glacial) — 



WESTERN SECTION. 



f Travertine limestone ... ... ... 3 " 



1. Recent — -J Calcareous sand rock, (?) raised beach 8 " 



[Travertine limestone ... ... ... 6 " 



Dark to reddish clay ... ... ... 6 " 



White kaolinised clay with red patches, 

 angular grit and erratics ; thickness 



above sea level ... ... ... 27 " 



In the second of the above cliff sections there is what 

 may be a raised beach deposit intercolated between two beds 

 of travertine. It is composed, to the extent of three-fourths 

 of its mass, of water-worn calcareous sand, and the remainder 

 of fine quartz sand. The bed does not exhibit false bedding, 

 as it would probably have done had it been wind blown, and, 

 in weathering, it splits up by vertical jointing which gives it 

 an appearance of a decomposed basaltic rock. If it be a 

 raised beach, the lower bed of travertine in the section re- 

 presents an old land surface that was (subsequent to its forma- 

 tion) submerged below high-water mark, and, at a later 

 period, was raised again and received its second deposit of 

 travertine limestone. 



The white kaolinised glacial clay of this section is a re- 

 markable bed, and has a peculiar chalk-like appearance as 

 seen in the cliff face, but the presence of undoubted erratics 

 scattered promiscuously through its mass, places its origin 



