*i. SECTION AT WORTON. 145 



Rubble and shelly oolite with Ostrea crassa, Pholadomya, &c. (elsewhere Trigonia). 

 Rubble or concretionary pisolitic bed. 

 Rough gritty bed, resting on upper lias. 



These are subjacent to slaty beds of the Stonesfield series. 



Passing- toward the Cherwell, in the country round Deddington, 

 we find the lias capped by irony and sandy bands instead of oolite. 



The following notes on the strata at Worton, written in 1854, 

 will serve as an index for this peculiar series in a large part of the 

 area between the Evenlode and the Cherwell. 



Diagram XXV IL Strata at Worton. 



h. Soil, with pebbles of the northern drift. 



g. Pale plank beds/ sandy and shelly layers. Four feet. (Rhynchonella, Ostrea, 



Ceromya.) 

 f. Chocolate-coloured iron ore, twisted and in concentric masses, half a foot ; some 



oolitic grains : this is a rich ore. 

 e. Pale stony bands with plants. One foot. 



d. Pale sands with dispersed masses of poor shelly iron ore, five and a half feet. 

 c. Limestone. Two feet. 



In the series c to f occur Myacites, Lucina, Pholadomya, Pleurotomaria, 



Nautilus lineatus, Belemnites giganteus. 

 b. Red clay, a mere parting with water, 

 a. Upper lias clay. Thirty or forty feet. 



At Stow-Nine-Churches, near Weedon-Beck, the series of strata 

 belonging to the Bath oolite period was thus observed (1870) : 



Great oolite of various kinds, white or ferruginous in places, especially 



near the top. Fossils in plenty, including Clypeus Plotii . . 3 feet - 

 The base not clearly seen. 



L 



