Shafts	Index	Shafts

Geology encountered   Thickness   Depth   m.   m. Walling    4.27     4.27 Mild freestone    11.58     15.85 Shelly post, mixed with coal pipes    0.51     16.36 Post    5.08     21.44 Mild black metal    0.33     21.77 Post    8.41     30.17 Grey metal    1.37     31.55 Blue metal    1.07     32.61 COAL, burns to white ash    0.46     33.07 Soft fire clay    1.22     34.29 COAL, goaf — Benwell Main Coal Seam, broken strata    4.80     39.09 Fire clay (on to wood wedging cribs)    1.45     40.54 Grey metal and whin girdles    4.34     44.88 Post, mixed with whin    4.60     49.48 Grey metal, with whin girdles    1.35     50.82 Post, with gullets and water (originally wedged off)    4.65     55.47 COAL    0.08     55.55 Fire clay    0.61     56.16 Grey metal and iron girdles    2.62     58.77 Post    3.56     62.33 COAL    0.10     62.43 Fire clay, mixed with iron balls    0.38     62.81 Strong grey metal    7.21     70.03 COAL    0.08     70.10 Coarse fire clay    0.61     70.71 Grey metal    1.50     72.21 COAL - Tyne Level Seam    0.33     72.54 Fire clay    0.10     72.64 Post and coarse strong metal    1.63     74.27 Whin    0.41     74.67 Grey metal, with iron girdles    4.57     79.24 Grey metal, with iron girdles    2.74     81.99 Blue metal, with iron girdles    1.65     83.64 Post, with whin    4.57     88.21 Blue metal and post girdles    1.83     90.04 COAL, goaf — Beaumont Seam    7.92     97.96 Thill stone, to metal wedging crib laid on post    1.52     99.49 Strong white post, no partings    4.90     104.39 COAL - Hodge Seam    0.13     104.52 Grey metal, mixed with iron    1.42     105.94 Grey post, with metal partings, very strong    10.41     116.35 Troubly metal    2.34     118.69 COAL    0.08     118.77 Fire clay    0.25     119.02 Grey metal    3.38     122.40 Brown post    7.31     129.71 COAL - Stone Coal Scam    0.46     130.17 Good fire clay    0.48     130.65 Coal pipe (this coal much thicker than the Engine Pit)    0.10     130.75 Coarse fire clay or metal    3.17     133.93 Post, mixed with whin    7.14     141.07 Grey metal and post girdles    1.22     142.29 COAL - Low Main or Lower Busty Seam    1.02     143.30     COAL, top    0.10          Black band, or badger    0.10          COAL, good    0.81      Good fire clay    0.30     143.61 COAL, coarse and brassy    0.10     143.71 Grey metal and black stone, with iron girdles    4.62     148.33 COAL - Three-Quarter Seam    0.66     148.99     COAL    0.43          Dark fire clay band    0.08          COAL, bottom    0.15      Grey metal    1.55     150.54 Dark grey post    5.11     155.65 Dark grey metal, with girdles    5.18     160.83 White post    3.91     164.74 COAL - Denton Low Low Main or Brockwell Seam    0.97     165.70     COAL, good    0.91          Splint    0.05      Fire clay, good, on to scaffold    0.38     166.08 Grey metal    1.52     167.61 COAL    0.18     167.79 Post, with metal partings    6.83     174.62

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 1375 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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