Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Ashlar work    12  3     12  3 * Sand and gravel, metal tubbing, with 450 galls, of water    41  10     54  1 Sand and gravel, wedging crib    0  10     54  11 Broken white post, metal tubbing    6  4     61  3 Do., wedging crib    0  9     62  0 Do., metal tubbing    0  3     62  3 Do., metal tubbing    5  11     68  2 Do., wedging crib    0  6     68  8 Do., rough clad, with deals    19  4     88  0 COAL - Towneley Seam    6  5     94  5     Splint    0  9            Brass band    0  1            Splint    1  0            COAL, good, but tender    1  7            Soft clay band    0  8½            COAL, good strong    2  3½        Strong black thill    3  9     98  2 White post, with many sandy gullets and water (deals)    18  4     116  6 Strong post    5  8     122  2 COAL - Tilley Seam    2  1     124  3 Strong thill    1  6½     125  9½ Grey post, mixed with whin girdles    5  9     131  6½ Blue stone, mixed with whin girdles    7  2     138  8½ White post, mixed with whin girdles, partings, and water    18  4     157  0½ Blue stone    1  0     158  0½ COAL - Hand Coal Seam    1  2½     159  3 Thill    1  3½     160  6½ Blue stone, with post and whin girdles    6  0     166  6½ COAL - Five-Quarter Seam    3  8     170  2½     COAL, good              Thill    2  6     172  8½ Post, with whin girdles    7  6     180  2½ Blue stone, with post girdles    7  4     187  6½ Blue stone    3  6     191  0½ COAL - 6/4 Seam    4  6     195  6½     COAL, good quality, but tender at the bottom              Thill    3  7     199  1½ Post    4  0     203  1½ Blue stone, with post girdles    24  4     227  5½ COAL - Yard Seam    3  3     230  8½     COAL, with band of 2 ins.              The strata between the Yard and Horsley Wood Seams is about as follows:-    0  0     230  8½ Thill stone    6  0     236  8½ Blue stone, with post girdles    8  0     244  8½ Post, with girdles    13  0     257  8½ Blue stone    9  0     266  8½ Post    7  0     273  8½ Blue stone    2  0     275  8½ COAL - Horsley Wood or Brockwell Seam    3  0     278  8½     COAL, good    2  7            Splint    0  5        * This gravel bed is of very large stones, which appear to have been rolled over in a river. Among the gravel several nuts and the remains of wood were found.    0  0     278  8½ The gravel appears to have been formerly the bed of the river, and is much thicker on the West side of the shaft than on the other. In the side at the top of the pit some pistol balls, arrow heads, and two curiously formed horse-shoes were found.    0  0     278  8½

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 1568 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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