Fossiliferous Deposit at Bielsbeck. 



43 



were carried down until the Keuper Marl was reached, or the 

 work was stopped by the influx of water. They were supple- 

 mented by several bore-holes put down to determine the extent 

 of the deposit. 



The sections revealed in the pits were as follows : — 



Section I. 



Feet. Inches. 



Surface soil . . . . . ... . o 9 



Sand, with small pieces of ang-ular chalk and flint . 2 o 



Gravel of rounded chalk and sub-ang-ular flint . . i 6 

 Silty blue-black marl or loam, the upper surface very 

 irreg-ular and penetrated by 'pipes' and pockets 



of g'ravel from the bed above .... 3 9 



Marl as above, "with specks of vivianite . . . i o 



Black marl 6 o 



Lig-hter-coloured marl, passing- downwards into 



g-ravel (chiefly flints) ...... 7 6 



Total depth reached . 22 6 



Sertio)i 2. 



Feet. Inches. 



Surface soil ........ o 9 



Sand .......... 1 9 



Gravel ......... 2 d 



Dark silt}- marl, with gravel . ' . . . .2 6 



Dark marl ......... 4 o 



Lighter marl . . . . , . . . 4 o 



^5 o 



Section J. 



Feet. Inches. 



Soil .......... I o 



Sand .......... 2 o 



Gravel ......... 3 o 



Grey marl, passing downwards into black . . 7 6 



Coarse gravel ........ o 6 



Solid Keuper Marl, blue ...... 3 o 



Solid Keuper Marl, red ...... i o 



18 o 



Section 



Feet. Inches. 



Soil .......... o 9 



Sand . . . .3 6 



Gravel ......... i 6 



Keuper ^Nlarl, its surface dipping at i in 3 towards 



the old marl pit . . . . ... .1 3 



.7 o 



1908 February i. 



