40 



PROCEEDINGS 



OF 



THE GEOLOGICAL SOCIETY. 



POSTPONED PAPERS. 



On the Newer Tertiary Deposits of the Sussex Coast. 

 By R. Godwin-Austen, Esq., F.R.S., F.G.S. 



[Read November 7, 1855*.] 



Contents. 



I. The land bounding the eastern portion of the English Channel. 



English coast : Dorset, Hants, Sussex. 



French coast : Somme, Seine Inferieure, Eure, Calvados. 



II. Detrital accumulations of the east end of the Channel Basin. 



Dorset and Hants, Isle of Wight, Sussex, 



III. Deposits of the Sussex-levels, above the gravel. 1. Mud-deposit, with Lutra- 



ria rugosa. 2. Yellow Drift-clay. 3. Marine gravel above the Drift-clay, 

 and its equivalents. 4. The Brick-earth. 5. Equivalents of the Brick-earth. 



IV. Indications of recent changes of level. 1. Solent. 2. Portsmouth. 3. Isle 



of Wight. 4. Pagham and its neighbourhood. 



V. Summary. 



At the Meeting of the British Association held at Ipswich in 1851, 

 I called the attention of the Geological Section to the evidences of 

 repeated oscillations of level of no remote date, which were to be ob- 

 served in parts of the coast of Cornwall, Devon, the Channel Islands, 

 and the Cotentin — an area comprising the western opening of the 

 English Channelf . I was fully aware that like changes were to be 

 traced round its eastern extremity, but many circumstances tending 

 to render the evidence less distinct in that direction, the subject was 

 reserved for separate consideration. 



§ I. The land bounding the eastern portion of the English Channel. 



English Coast. 



Dorset and Hants. — It will be seen, by reference to any geological 

 map of England, that the great bay west of Portland corresponds 



* For the other Communications read at this Evening's Meeting, see Quart. 

 Journ. Geol. Soc. vol. xii. p. 1 &c. 



t Several papers by the author, relating to the English Channels and the 

 superficial accumulations along its coasts, and on the drift-gravels of the south of 

 England, may be referred to in the Quart. Journ, Geol. Soc, vol. vi. p. 69; vii. 

 p. 118 and p. 278 ; xi. p. 112. See also papers by Sir R. Murchison on the FUnt 

 Drift, op. cit. vol. viii. p. 349 ; Mr. Trimmer on theErratic Tertiaries, vol. ix. 

 p. 282; and Mr. Martin's paper, vol. xii. p. 134. 



