TABLE OF STRATIFIED ROCKS. 



c 



SYSTEMS. 



FORMATIONS. 



LIFE PERIODS. 







c 



Terrestrial, Alluvial, Kstuarine, and 





















EECENT 



\ 



Majine Beds of Historic, Iron, 















a 





£? 





\ 



Hronze, and Neolithic Ages 















t' 





a 





r 



Peat, Alluvium, Loess 















a *? 





^ 







Valley Gravels, Brickearths 















? s 





o 



PLEISTOCENE 



i 

 i 



Cave-deposits 















.5 ^ 





5- 



(250 ft.) 



Raised Beaches 















£ 



o 











Palaeolithic Age 















ft 





-_ 





I 



Boulder Clay and Gravels 



















PLIOCENE 



r 



Norfolk Forest-bed Series 





c5 







X 



Norwich and Red Crags 

















c 



sA 



(100 ft.) 



X 



Coralline Crag (l)iestian) 

















c • 



.5 



MIOCENE 



(125 ft.) 



{ 



QLningen Beds Freshwater, <fec. 







. E 





of 3 



Q. S 







EOCENE 



(2,600 ft.) 



\ 



Fluvio-marine Series (Oligocene) 







I s 



a f 





aS 



C3 -O 











cs K a 



6 1 









( 



Maestricht Beds 









o -— 







CRETACEOUS 



\ 



Chalk 







|°fi 



fi.5 



d 





(7,000 ft.) 



i 



Upper Greensand 

 Gault 







s7 « ™ 



K a -S 



W 



c 

 is; 





NEOCOMIAN 



{ 



Lower Greensand 

 Wealden 



e 



. cM = 





*3 







r 



Purbeck Berts 

 Portland Beds 



ft 



<= a, & w ° 





Pi 

 c . 



pa 





JURASSIC 



(3,000 ft.) 



1 



Kimmeridge Clay (Solenhofen Beds) 

 Corallian Buds 

 Oxford Clay 



if <; o ti 

 2 * ° a W 



„ 



<; 









Great Oolite Series 



P* "♦- ? "S 



a. 



P, 









Inferior Oolite Series 





*= ci 



"A 

 C 

 O 



02 







L 



Lias 







11 







C 



Rhaetic Beds 



r- M 





1* 







TRIAS SIC 



J 



Keuper 



3 









n 





r 



(3,000 ft.) 



I 



Muschelkalk 

 Bunter 



5 

 a 



o 













PERMIAN or 



( 



Red Sandstone, Marl '/ „ . . 

 Magnesian Limestone, &c. j - 6eensteln 











DTAS 



< 



] be 







— — » 









) 



Red sandstone and Conglomerate 



a 













(500 to 3,000 ft.) 



V 



Rothliegende 



Pi 













CARBONIFEROUS 



\ 



Coal Measures and Millstone Grit 















(12,000 ft.) 



i 



Carboniferous Limestone Series 









S-, 



d 





DEVONIAN & OLD 



, 



Upper Old Red Sandstone 









a jji 



o 





RED SANDSTONE *) 



Devonian 









■a C=i 



c 





(5,000 to 10,000 ft.) 



I 



Lower Old Red Sandstone 









a 

 o 







( 



Ludlow Series 









< 





SILURIAN 



■J 



Wenlock Series 









Pi 





(3,000 to 5,000 ft.) 



I 



Llandoverv Series 

 .May Hill Series 











c 





ORDOVICIAN 





Bala and Caradoc Series 

 Llandeilo Series 









Pi 





(5,000 to 8,000 ft.) 



} 



Llanvirn Series 







oT . 



-p. 







I 



Arenig and Skiddaw Series 







a. as 









Tremadoc Slates 







4J g 



— 

 P. 





CAMBRIAN 



Lingula Flags 







43 _3 

 a -3 







(20,000 to 30,000 ft.) 



Menevian Series 







a S 









Harlech and Longmynd Series 







c g 





EOZOIC— 



1 



Pebidian, Arvonian, and Dimetian 





Q" 1 







ARCH^!A.N 



Huronian and Laurentiau 









I 



(30,000 ft.) 















1 





