Shafts	Index	Shafts

Geology encountered   Thickness   Depth   m.   m. Gravel    0.91     0.91 Strong gravelly clay, with large tumbling stones    3.66     4.57 Blue metal stone    0.46     5.03 COAL - Five-Quarter Seam    1.98     7.01     COAL    1.32          Band    0.15          COAL    0.51      Grey metal    1.07     8.08 White post, mixed with brown whin    1.07     9.14 Grey post stone    0.30     9.45 White post stone    0.61     10.06 Grey post stone    0.46     10.52 Brown soft post    0.46     10.97 Grey metal stone    0.30     11.28 White post, with brown whin    0.61     11.89 Blue metal stone    3.66     15.54 Black metal stone    0.30     15.85 COAL    0.05     15.90 Whin girdle    0.30     16.20 Black metal stone    0.46     16.66 COAL    0.23     16.89 Grey metal    1.02     17.91 Blue metal    2.90     20.80 Brown whin    0.25     21.06 Grey post    0.76     21.82 Grey metal, with post girdles    4.57     26.39 Blue metal, with ironstone band    0.91     27.30 COAL - Main Coal Seam    2.08     29.39     COAL, cannel    0.28          COAL    1.80

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887

  original entry for sinking/boring number 1271 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887"

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