47 



STRATA OF HALIFAX. 



The Flagstone Rock. — The series of beds of shale rag, and freestone 

 known by the above name, lie on the Lower Coal measures, and occupy 

 the heights of Ringby, Catherine Slack, Queensbiiry, North and 

 Southowram and Elland Edge This formation is very variable. At 

 Ringby, it consists of a great thickness of shale, rag, ashlar and freestone, 

 at Northowram, many of the upper beds are missing, but the lower stone 

 beds are more persistent. 



The following is a section of one of Messrs. Cordingley's quarries at 

 Ringby, taken October 16th, 18G6r Each bed was carefully measured, 

 and afterwards the line was strung from the top to the bottom of the 

 quarry in order to correct the previous measurement of each bed. There 

 was only a difference of a few inches in the two results. 



Et. In. 



1. Thin bedded stone (Fence stufF) 13 



2. Shale 6 



3. Stone 9 6 



4. Shale 4 3 



5. Rag ; 2 7 



6. Stone 2 8 



7. Eag 6 8 



8. Stone 3 



9. Kag 3 



10. Shale 2 2 



jj^ 11. Stone 3 2 



■ 12. Kag 7 3 



M^ 13. Bottom Stone 11 



I Sv 

 -Ba 



Dip ot the Strata 3 degrees to South East. 68 9 



Most of these beds retain their relative position and character across 

 Swale's moor, but we have a slight variation at the edge of the moor facing 

 Barehead, as the following section wiU shew : — 



rt. In. Ft. In. 



Soil 6 3 



Rubble (broken up rag and shale) 15 of „„ /. 



Rag 10 or ^^ *» 



Bagg7 Stone 4 0} 



