480 



THE GEOLOGIST, 



DESCRTPTIO^T OY THE SECTION OF THE UPPER GREEI?'- 

 SANB AT THE UNDERCLIFF, IN THE ISLE OF WIGHT. 

 By Me. Make: W. Noemah^. 

 As the practical value of local details is admitted by all geologists, I 

 have contributed the following statement of the Upper Greensand strata 

 strata in the Isle of "Wight, thinking it might prove of interest to the 

 readers of the Geologist. 



The following table will convey at a glance the relative position 

 and thickness of the beds, and will serve to make the general observa- 

 tions more readily intelligible : — 



SECTION OF THE UPPER GREENS AND. 



Geey Chalk oe Chalk Mael. 



[ Scale 

 set. 





a 



o 



LowEE Chalk oe Chalk Mael. 

 A 



t> 





^ Uppee Geeensand. 













1 



Very fossiliferous. 



2— Chloritic Marl 





3 



Fossiliferous. 



8— Great Chert Bed - - - - - 





6 



Fossils. One of the beds of 

 chert contains fossil coni- 

 ferous wood, silicified. 



4 — Rag or Tblue limestone, and sandy 

 beds and cherty sandstone .. 



} 



94. 



Bones of Saurians. 







27 





6 — Freestone beds, alternating with 



\ 



31 



Fossils rare. Those found 

 are chiefly Pectens, and 

 are well preserved. 



7 — Sandstone beds, containing sandy" 

 concretions, with beds of rag, 

 including the " Whill Rag," 

 and terminating with the "Big 

 Rag Bed." ------ 





39 



Fossils. Siphonice, Ammon- 

 ites, GryphxcBy Serjpulce, 

 SfC. 



8 — " Malm Bed," consisting of beds" 

 of tough sandstone, with layers 

 of rag in detached masses or 





52 

 to 

 60 



Fossils. Ammonites, EchU 

 rdtes, Astacus, ^c. 



9 — A thick layer of sandy concretions, "] 

 mottled with black,and differing | 

 both in texture and substance i 

 from the beds above, the lower { 

 portion of which is termed the 1 

 " Kubble Gnnlt.."- . - 



to 

 109 



Fossils. Lima, Inoeeramu$, 

 Serpulce, ^c. 

















Note.— The figures in the first column denote the average thickness of the 

 beds described ; the second column gives the total thickness of the whole series. 



