to6 



Bed 



MIDDLE ALBIAN STRATIGRAPHY 



Li t h ology 



1 1 



10 



First concretionary stone band of the Gaize. 



Silty glauconitic mid-grey clay at base becoming siltier and 

 lighter in colour upwards as clay content decreases. 

 Phosphatic and pyritic nodules occur scattered throughout. 



Definite break in sequence at the base 



Tough mid-grey, sparsely shelly slightly glauconitic clay, 

 silty at base, becoming progressively less silty upwards. 

 Scattered shells occur throughout. 



Dark grey-greenish glauconitic loam with scattered shells. 

 Thin seams ot light-rinded brown phosphatic nodules occur 

 as shown. The basal line contains gritty phosphatic nodules, 

 the uppermost line contains septarian phosphatic nodules. 



Dark grey- black greenish tinged glauconitic loam; a little 

 pebbly with very scattered gritty phosphatic nodules and 

 shells. 



Definite break in sequence ot the base. 



Dark grey-green glau 

 nodules, ana shells. 



conitic loam with small phosphatic 



Transitional bed with dark qrey sandy clay content increasinq 

 upwards. Dark brown phosphatic nodules at top and bottom. 3 



Brownish sand with a 1-2 inch bed of pure running grit at the 

 base. The sand is slightly glauconitic in the lower half, but 

 upper half is seamed with glauconitic wisps. 



Hard dark brown very pebbly indurated grit with a few 

 phosphatic nodules. 



Mottled brown and dirty yellowish sand with a few brownish 

 clay wisps, becoming ferruginous in the upper foot or so. 



Heavily bioturbated mottled loam consisting of a churned-up 

 mass of grey sandy clay brown and dirty white sand in 

 wisps and pockats. Bed becomes more sandy downwards, 

 and contains scattered soft buff phosphatic nodules. 



Ft 



3EE>_(EE 



Ins M 

 12- 



10- 



9- 



4 a- 



10. 



7-> 



6- 



1 

 10 5- 



3- 



2- 



1 - 



0- 1 



FlG, 47. Section in Poudingue and Gault in the sea-cliff immediately to the NE. and below 

 the cliff-top car-park, Octeville, Pays de Caux. 



