Table of British Formations. 



f CRETACEOUS 



WEALDEN 

 SERIES 



^ j OOLITIC 

 , l SERIES 



and 

 LIAS 



LTRIASSIC . . 



f PERMIAN . . 



CARBONIFE- 

 ROUS 



OLD RED 



.5 J | SANDSTONE, & 

 p., DEVONIAN 



SILURIAN . . 

 i LAURENTIAN 



Post-tertiary 



( Newer Pliocene 



< Older Pliocene 



Miocene . . 



Upper Eocene 



< Middle Eocene 

 \ Lower Eocene 



TABLE OF THE BRITISH FORMATIONS. 



Recent. . . . Alluvia, peat, and estuarine beds now forming, &o. 

 River and estuarine alluvia, and some peats, with 

 human remains and works of art ; whales, 

 seals, &c., bones of Mammoth, and other land 

 mammalia ; flint implements, raised beaches, 

 -j and bone caves, &c., in part. Latest traces of 



British glaciers. 



I Great glacier moraines, and boulder clays with 

 | marine and freshwater interstratifications. 

 L Forest bed of Norfolk, Chillesford beds, and 



Norwich Crag, with land mammalia, &c. 

 J Red Crag. 

 t Coralline Crag. 



Bovey Tracey and Mull beds, with igneous rocks. 

 / Hempstead beds \ 



I Bembridge beds f Freshwater river beds, with 

 1 Osborne beds . | marine interstratification. 

 I Headon beds . ) 

 ] Bracklesham and ) -.-. 

 t Bagshot beds f Jvli 

 I London Clay. Marine. 



4 Woolwich and Reading beds and Thanet sand. 

 (. Freshwater, estuarine, and marine. 

 Chalk . . . ,\ 

 Upper Greensand 

 Gault .... } Marine. 

 Lower Greenland 

 Atherfield Clay . , 



SShies^ands d I Freshwater river beds, estuarine and lagoon beds. 

 Purbeck beds ' ) with marine interstratifications. 



Portland Oolite 



Upper . 



Middle 



Lower 



and sand . 



Kimeridge Clay 



Coral Rag . . 



Oxford Clay . 

 j Cornbrash 

 1 Forest Marble 



Bath or Great 

 ! Oolite . . . 

 j Stonesfleld Slate 

 : Inferior Oolite I 

 t and Sand . . ' 



/ Upper Lias Clay 



J Marlstone (Middle Lias) . . 



1 Lower Lias Clay and Limestone 



I Rhsetic beds. Passage beds J 



( Upper. New Red Marl (Keuper). Salt LaVe. 



4 Lower. New Red Sandstone (Bunter). Lake deposits, probably 



( salt, but perhaps partly fresh or bz-ackish. 



Marine in middle and south of 

 England. Between the Inferior 

 Oolite and Great Oolite, partly 

 freshwater and terrestrial, in 

 Northamptonshire, Lincolnshire, 

 and Yorkshire. 



( Coal-measures and Millstone grit. Partly terrestzial, freshwater, 



and marine. 



j Carboniferous limestone and shales. Chiefly marine, and in north 

 \ of England, and Scotland, partly terrestrial and freshwater. 



' ] Lower } Freshwater lakes. Devonian marine. 



Marine. 



[Upper Silurian 

 Lower Silurian 

 and Cambrian. Probably marine and freshwater beds interstratified. 

 Marine. 



