338 



Geology. — On the Order of Succession of Rocks, 



A TABULAR VIEW 

 Of the known Rocks of the Crust of the Earth, 







No. ! 



Feet. 







41 



Alluvium 





ARY 



Pi . 



40 



1 Diluvium 





2 « 



39 



1 Upper fresh Water 



60 



1— 1 





38 



Upper Marine 



160 



TER 



go 



37 



1 Lower fresh Water, Gypseous 



170 





36 



London Clay 



110 







35 



Plastic Clay 



very 

 variable 







34 



Chalk with Flints i 



700 







Qi 

 oo 



Upper Green Sand 



100 







10 



vxUdli 



150 







ol 



Lower Green Sand 



250 







Qfl 

 oU 



weaiQ i^iay 



300 









Hastings Sand 



400 







ila 



Puvbeck Limestone 



250 ' 





Order. 



■61 



X oriidna uoiiie 



120 



.RY. 



26 



Kimmeridge Clay 



500 



25 



Coral Rag 



150 





< 



24 



Oxford Clay 



600 



^ 



a 



a 



23 



Cornbrash 



30 



o 

 o 





22 



Forest Marble 



i 50 



m 



M 



21 



Bradford Clay 



1 50 



D 



20 



Great Oolite 



1 130 







19 



Fuller's Earth 



1 140 







18 



Inferior Oolite 



1 180 _ 







17 



Lias 



1 50t> 







16 



Variegated or red Marie 



1 500 







15 



Muschelkalk 



1 300 







14 



New red Sandstone 



1 300 







13 



Zechstein 



1 ouu 







12 



Exeter red Conglomerate 



1 ouu 







11 



Coal Beds 



1 lUUU 





^ pi 



10 



Millstone Grit and Shale 



1 7qo 





S o 



9 



Carboniferous Limestone 



1 8.10 





So 



8 



Old red Sandstone 



j 15^10 







7 



Greywacke 



1 







6 



Transition Limestone 





TRATS 

 TIO] 



Hi 



^ pi 



5 



Alum Slate 

 Whetstone Slate 

 Flinty Slate 



/ 



HARY. 



go 



4 



Serpentine 

 Greenstone Slate 

 Talcose Slate 

 Hornblende Rocks 

 Primary Limestone 



— )— 



i 









Mica Slate 





fii 



(6 



3 





U H 



S 2 o 



2 



Gneiss 







« 3 PS 



1 



Granite 



r 



^ : 



! 



I 



