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XLVII. Contributions to the Geology of Northumberland and 

 Durham. By N. J. Winch, Esq. F.G.S. # A.L.S. 

 [Concluded from p. 204.] 

 Section of the Strata of one of the Pits at Blenkinsop near 

 Toadholes, sunk in the year 1 826. 



Isabella Pit. Fa. Yds. Ft. In. 



SURFACE soil, clay, &c 3 10 



P Plate or shale ..! 12 6 



Soft gray slaty sandstone .. 1 1 



Plate .. 5 2 3 



Hard white and yellow slaty sandstone 6 10 6 



Plate 3 116 



Limestone 4 



Plate 4 3 



Coal 10 5 



29 1 2 5 



The pit called the Deep Pit, at Blenkinsop, was 56 fathoms; 

 the upper part all clay, the lower strata corresponding with 

 the above section. 



Dip of the coal seam 1 yard in 9 yards. 



Regular dip to 10 o'clock a.m. 



No whin dykes ; there are up and down carts. An out-burst 

 of the coal seam at Little Angerton, in the township of Blen- 

 kinsop, 4 feet 6 inches in height. The seam varies from 

 4 feet 5 inches to 4 feet 8 inches in thickness. The colliery is 

 wrought at present (1830) by a drift or tram- way. Only one 

 workable seam. There is a small seam of crow coal 10 inches 

 thick, but not workable. 



I now give a statement of the sinking of another pit at the 

 same colliery (not now at work), called the John Pit. 



Fa. Yds. Ft. In. 



\_>iay . .. ... ••• ... ... . .. ••• ••• 



Soft blue plate 



Gray post or girdles ... 



Soft gray post ditto with water 



Soft gray beds • 



Blue plate 



Limestone* 



Crow coal 



Gray thill 



White post girdles 



Blue plate 



v Oill ... ... ... ... ... ... ... ... 



25 2 6 



* A large kibbe or tub of fine lead ore was found in this stratum when 

 sinking the pit. 



Third Seizes. Vol. 3. No. 16. Oct. 1833. 2 N « 



