1857.] 



PHILLIPS OOLITE AND LIAS, YORKSHIRE. 



89 



S CQ <n 

 % % * 



ft in. 

 Calcareous bed, with BelemnitesAalemis at the top, Ostrea 



Marshii, &c 2 4 



Sulphureous laminated shale, with nodular ferruginous 



top 1 8 



or 











4 



™< 



o 



9 







On the north side of the island, as already observed, the upper 

 part is wanting — the uppermost bed seen is the band of ironstone- 

 balls with Avicula. 



The next series of beds, marked e 1, is found nearly alike on both 

 sides of the island in the upper members, but very unlike in the 

 lower members. 



Commencing in the south, we have, mostly of freshwater 

 estuary origin, — 



Hard sharp laminated sandstone, with thin lines of shale ft. in. 



and distinct vertical joints t 5 



Shale, dark and " coaly " at top and bottom, the middle 



occasionally resembles " seat earth " 5 



" Pipy '-' white sandstone, passing downward to " seat 



earth," and still lower to shale with ironstone pins 5 



Lumpy sandstone, partly dotted with ironstone, jet, and 



wood. Forms resembling Lutraria, Modiola, but not 



known for certain to be organic 2 ft. 6 in. to 



Dark laminated curled Coal shale, with many plants, and 



especially Equisetitescolumnaris. Here isa" sulphur *line " 

 Sandy grey laminated shales, or sandstone, a little pipy ... 

 Shales, with a thin sandstone layer and dark Coal bands, 



many plants 8 ft. to 



Sandstone laminated with shale lines and lumps — thin coaly 



layers, Equisetites, and other plants 4 



Sandstone with thin partings, bands, and lumps of iron-ore, 



and plants, — very variable in thickness and composition. 20 

 Below is the Oolite with Cricoporae, marked d. 



In the cliffs on the north side of the island we have, wholly or 

 mostly of freshwater or estuary origin, — 



Brown sharp laminated sandstone, with fine shale 



Pale shale 4 ft 



Dark shale 2 ft 



Soft pipy sandstone 2 ft. 6 in 



Pale pipy shale 1 ft. 6 in. 



Dark shale 1 ft. 3 in. 



White pipy sandstone 3 



Dark shale and Coal in waved laminae {Equi- 

 setites) 6in. 



Pipy pale sandstone lOin. 



Coaly shale 6in. 



Laminated shaly sandstone or sandy shale 



Pale lamiuated sandstone and shale 1 ft. 6 in. 



Dark laminated shale 1 ft. 3 in. 



Lumpy white sandstone lft. 9 in. 



Pale shale, with very fine and numerous plants and 

 ironstone pins, — Anodox 1 ft. 8 in. 



Shale with Coal streaks (pyritous layer at top) 

 .". lft. 3in. 



Coal bed, crossed by " cleat," and of marine or 

 1^ mostly marine origin lft. 



* Such yellow lines are marked by efflorescent sulphate of iron and some free 

 sulphur, derived from decomposed bisulphuret of iron. 



} 







in. 

 



Coal 

 Series. 



6 



4 3 



1 10 



1 10 



8 5 



