Geology 



We next continued our journey to B.H. 2, where we 

 found that the cores indicated the following section : 



Feet. 



270 Keuper Sandstone. 

 360 Permian Limestone. 



87 Brown Sandstone. 



ii Black Shale with Pterinopecten papyraceus. 



The occurrence of the black shale with Pterinopecten 

 papyraceus beneath a brown sandstone very similar to 

 the Coal Hill Sandstone was very encouraging, as we 

 should, in all probability, find the clay ironstone nodules 

 and the " Top Seam" of Coal Hill, and boring opera- 

 tions were, therefore, at once recommenced. 



It will be remembered that at Coal Hill 30 feet of 

 grey shale intervened between the Pterinopecten Shale 

 and the coal, and here at B.H. 2 the drill passed through 

 32 feet and then penetrated the coal. 



We could ascertain little with regard to the quality 

 of the seam, as the drill failed to bring up a core of 

 the coal owing to its friability, but the thickness appeared 

 to be the same as at Coal Hill. 



Leaving instructions to continue the boring with the 

 object of proving the " Bottom Seam," we now returned 

 to B.H. i, where we found that the drill had passed 

 below the base of the marls and into the Keuper 

 Sandstone, at a depth of 230 feet. As the occurrence 

 of rock-salt is usually confined to the marls, it was 

 considered useless to continue the bore to a greater 

 depth, and we therefore started on the return journey 

 to Lyell with the object of making arrangements to 



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