part 1] GAULT A:N^D lower GEEEKSAIS^D K^EAE LEiaHTOII. 



7 



Fig. 3. — Profile section at tlie northern end of Harris's pit, 

 Shenley Hill, August 19S0. Stir face (at Ireahaway), ahotit 

 383 feet O.D. 



W. 



E. 



5^ ^^^M^-\ 

 ^■"'^ ..,v 



•^V,. 





4b 



Scale. 



r!0 feet 



-5 



10 feet 



^■.-■■V 



z. 



ZY 



ThicTcness in feet ^ 

 Brown clay-soil witli flints, passing down into — 1 



Pale-grey marly Gault, with massive structure, disturbed and 

 5 probabl}' more or less sliding, with a few stones in the upper 



part, and some obscure bedding towards the bottom 5 to ft 



o a. Band of phosphatic nodules of all sizes up to 6 or 8 inches in 

 diameter, containing many fossils, in very fossiliferous pale- 

 grey clay ; some of the nodules pale grey, others black and 

 showing scars of adherent Plicatulae, polyzoa, etc. ; both kinds 

 generally much corroded on the upper side, and the smaller 

 nodules frequently embedded in a regrowth of concretionary 



phosphate ('compound' nodules) .; ^ 



Ammonites abundant but mostly'' fragmentarj^, the majority 

 belonging to the keeled ' rostratus ' group, but others akin to 

 ' auritus,' ' splendens,' etc. ' Inoceramus sulcatus ' also 

 abundant. (See further, p. 53.) 



4 b. Gault obscured by slips about 8 



[' At 8 to 10 feet above the base ' of the Gault Dr. Kitchin & 

 Mr. Pringle found ' a HojoUtes of the tuherculatus group ' and 

 others including ' a large involute hoplitid of flattened discoid 

 form ' apparently representing ' one of the several series whose 

 members are commonly united under the favoui'ite collective 

 name S. splendens.' ' At this level and in the overl3'ing part of 

 the clay there occur large crushed examples of Inoceramus 

 sulcatus Park.'] 

 f (Upper Step). Excavation in slipping ground : material mainly 

 the pale top clay, but mixed in places towards the bottom 

 4. •{ with darker and more platy blue clay which yielded a fragment 



1 of ' Ammonites splendens ' 3 



l^(Lower Step). Gault in place, but with slide-planes in places, 

 indicating movement under the slip; dark-blue (drying greyish- 



