356 
NOTES ON THE COAST SECTIONS BETWEEN IIAYBURN WYKE 
AND FILEY. 
BY C. FOX-STRANGWAYS, F.G.S., OF THE GEOLOGICAL SURVEY. 
(Prepared for the Field Excursion to Scarborough, 
July, 1897,) 
The area to be visited during this Field Excursion consists 
entirely of beds belonging to the Middle and Lower Oolites. % 
To the north of Hayburn Wyke are the Staintondale Cliffs, 
which are composed entirely of the Estuarine Series of the 
Lower Oolite, with the three marine divisions of the Eller 
Beck Bed, the Millepore Bed, and the Grey Limestone Series. 
The marine bands of the Millepore Beds and the Grey Limestone 
come to the shore on eitlier side of Cloughton Wyke, where 
they form conspicuous reefs, which can be examined at low water. 
Between this point and Scarborough the coast is formed by 
the sandstones of the Upper Estuarine Series. 
At Scarborough the Middle Oolites first reach the coast 
and form the bold and prominent headland of the Castle 
Hill. This ma}^ be considered as one of the typical Oxfordian 
sections, nearly the whole of this series being exposed in a 
vertical cliff 250 feet in height. The summit of this cliff, 
with the exception of a thin covering of Boulder Clay, is 
capped by about 20 feet of Oolitic Limestone, representing the 
lower part of the Lower Limestone ; below this comes about 
37 feet of Passage Beds very full of a small Ostrea, Gervillia 
aviculoides, and Pecten subfihrosus. These rest on 18 feet of soft 
sands with large calcareo-siliceous concretions forming the upper 
part of the Lower Calcareous Grit, the lower beds of w^hich pass 
gradually down into the sandy shales of the Oxford Clay. 
By a fault which passes close to the entrance to the Castle 
the Kellaways Rock is throw^n up on the west side, and a fine 
section of these sandstones, here about 80 ft, thick, is exposed 
in the North Cliff. The Cornbrash is seen at places beneath 
this rock, while the lower part of the cliff is occupied by the 
shales and sandstones of the Estuarine Series, 
