Shafts	Index	Shafts

Geology encountered   Thickness   Depth   m.   m. Sunk to the scaffold    45.87     45.87 Box    7.67     53.54 Strong white post    1.47     55.01 Blue metal    3.02     58.04 COAL - Main Coal Seam    1.68     59.71 Brown metal    0.66     60.37 Grey metal, with post girdles    0.58     60.96 Grey metal, with post girdles    6.76     67.71 Grey post    2.59     70.30 Grey metal    1.78     72.08 Grey post    0.97     73.05 Grey metal stone, with post gridles    5.26     78.31 COAL - Maudlin Seam    1.42     79.73 Grey metal stone    2.01     81.73 Strong white post    0.28     82.01 Strong grey metal stone, with post girdles    3.94     85.95 Grey metal stone    1.50     87.45 Strong white post    2.67     90.12 COAL - Low Main Seam    1.42     91.54 Brown metal    0.41     91.94 Grey metal stone    1.19     93.14 Grey metal stone, with post girdles    1.93     95.07 Strong grey metal stone, with hard girdles    1.35     96.41 Blue metal    0.51     96.92 COAL - Brass Thill Seam    0.86     97.79 Strong grey metal stone, with post girdles    0.61     98.40 Strong grey post, with a mixture of whin    0.30     98.70 Grey metal stone    0.18     98.88 COAL    0.15     99.03 Grey metal stone    2.69     101.72 Strong white post    1.55     103.27 Grey metal stone    0.30     103.58 Strong post, with a mixture of whin    0.76     104.34 Grey metal stone    0.91     105.25 Strong post    0.15     105.41 Grey metal    0.18     105.58 Strong post    0.91     106.50 Grey metal stone, with post girdles    1.55     108.05 Strong grey post    0.20     108.25 Grey metal stone, with post girdles    0.86     109.11 Brown post    0.84     109.95 Grey metal stone, with girdles    3.76     113.71 COAL - Hutton Seam    1.45     115.16

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 1310 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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