136 



GEOLOGY OP THE ISLE OF WIGHT. 



Fig. 36. 



Vertical Section of the Beds at the North-East Corner of Headon 

 Hill. {Scale, 8 feet to the inch.) 



(Reproduced, by permission, from the Quart. Journ, Geol. 

 Soc, vol. xxxvii. (1881), p. 91.) 



WJ 



ft 



ft. in. 

 1 



6i-8 



ro: 



«^ 



3^ 



n.-2 ft. 

 Gin. 

 6 in. 



ft. in. 



1 10 



9 2 



3 



3 



8 



2 6 



G 

 1-1 3 



2i-4 G 



8 G 

 seen. 



Part of thick Limrusa limestone. LimncBafusiformis, &c. 

 Laminated greenish clay, with broken Paludina. 



Whity-brown to buff sands, with layers of li^nitic matter. 





Greyer sands below I Palwdinalenta. 



Lignite. 



■ Vicarya concava, Marginella vit- 

 tata,NerUina concava, Melania 

 murieata, &c. 



Limncea limestone soft and crumbling, with a thin lignite attop. 

 Verdigris-green clay, with rootlets. 

 iM)i««a-limestones. 



Greenish-grey clays, 

 ventricosum bed with 



x^c^- 



m 



.hl 



stiff green clays with conchoidal fracture in drying. 

 Ovster-bed towards the base. 



CFusus labiatus, Mel.fasciataM, muri- 



Pi<,v ViPPrM-niiif? o^rpvpi- ' ^"^'^' -^«»*»^«' aperta, Cer. variahile. 

 Clay, becoming gie>er^ ^ pseudocinctum, Ostrea velata, 



Mytihis affinis, Corbicula obovata, 

 Lucina colvellensis. 



below. Fossils. 



Alternating grey and ochry clays. 



fCyth. incrassafa, Mactra fasti' 

 giata. My a angtistata. Cor- 

 bieula obovata, Nucula lissa, 

 N. headonensis. Trig, deltoi- 

 dea, Fusus labiatus, Canccll. 

 clongata, Melanopsis fusi- 

 forniis. Valuta spinosa, Vic. 

 concava, Natica Studeri. 

 Thin grey sandy clays, weathering brown. 



" Venus-hed," richest por- 

 tion, contains scattered 

 flints, brown sandy clay 

 becoming green clay and 

 sand below. Fossils. 



Cytherea incrassata, &c. scattered thi-oughout. 

 Mya angtistata, especially near base. 



Chocolate-brown or f Trig, deltoidea. Cer. pseudocinctum, 

 blackish sands. I Natica labellata, Melan. fusiformis. 



Trigonocxlia-hed, 



Blackish-brown sands, Neritina bed { V,rrc.'i£'' 



.•> Very still tenacious clay. 



iiwj«(®a-limestone, " How-Ledge lime- ( L. longiscaia,fusi' 

 stone." I formis, &c. 



Whity-brown or yellow sands and sand-rock, with layers of 

 Paludina and Pofamomya. 



;P'Wv\^Vn| 



[The base concealed by tumble and undercliS.] 



