TABLE OF STRATIFIED ROCKS. 



L_ 



SYSTEMS. 



FORMATIONS. 



LIKE- PERIODS. 



EECEWT 



PLEISTOCENE 



(250 ft.) 



Terrestrial, Alluvial, Estiiarine, and 

 Marine Beds of Historic, Jron, 

 Bronze, and Neolithic Ages 



Peat, Alluvium, Loess 



Valley Gravels, Brickeartlis 



Cave-deposits 



Raised Beaches 



Palfeolithic Ape 



Boulder Clay and Gravels 



PLIOCENE 



(100 ft.) 

 MIOCENE 



(125 ft.) 



EOCENE 



(2, COO ft.) 



^ ' Norfolk Korest-bed Series 



/ Norwich and Red CraRS 



t Coralline Crag (Diestian) 



r 



< (Eningen Beds Freshwater, &c. 



Fluvio-marine Series (Oligocene) 

 Bagshot Beds "1 ,,, ,.,. -, , , 



London Tertiaries/<^""""^^'"«= ^^^^^ 



CKETACEOUS 



(7,000 ft.) 



NEOCOMIAN 



JURASSIC 



(3,000 ft.) 



TRIASSIO 



(3,000 ft.) 



PERMIAN or 

 DYAS 



(500 to 3,000 ft.) 



CARBONIFEROUS j 



(12,000 ft.) ' 



DEVONIAN & OLD j 



RED SANDSTONE \ 



(5,000 to 10,000 ft.) '■ 



SILURIAN 



(3,000 to 5,000 ft.) 



ORDOVICIAN I 



(5,000 to 8,000 ft.) I 



CAMBRIAN 



(20,000 to 30,000 ft.) 



Maastricht Beds 



Chalk 



Upper Greensand 



Gault 



Lower Greensand 



Wealden 



Purbeck Beds 



Portland Beds 



Kimnieridge Clay (Solenhofen Beds) 



Corallian Beds 



Oxford Clay 



Great Oolite Series 



Inferior Oolite Series 



Lias 



.la 



Rhaetic Beds 

 Keuper 

 Muschelkalk 

 Bunter 



E .E 



•Z .5 x: .S >_ 



a B3 o 

 C £ E 



^ s 



c c 



e:^ 



Red Sandstone, Marl > „ , 



Magnesian Limestone. &c. ) '^•^chstein 

 Red .Sandstone and Conglomerate 

 Rothliegende 



Coal Measures and Millstone Grit 

 Carboniferous Limestone Series 



Upper Old Red Sandstone 



Devonian 



Lower Old Red Sandstone 



Ludlow Series 



Wenlock Series 



Llandovery Series 



May Hill Series 



Bala and Caradoc Sciies 



Llandeilo Series 



Llanvirn Series 



Arenig and Skiddaw Series 



Tremadoc Slates 



Lingula Flags 



Menevian Series 



Harlech and Longmynd Series 



EOZOIC- 

 ARCH^EAN 



(30,000 ft.) 



Pebidian, Arvonian, and Dimetiun 

 Huronian and Laurentiau 



o c 



