Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Clay and gravel    6  10     6  10 Limestone    29  2     36  0 Yellow sandstone    4  0     40  0 Light sandstone    13  0     53  0 Soft red sandstone    9  0     62  0 Blue metal    5  0     67  0 Hard post    2  0     69  0 Mild sandstone, with water    16  6     85  6 Blue metal    0  6     86  0 Grey metal    6  0     92  0 Blue metal    11  0     103  0 Hard post girdle    1  0     104  0 Blue metal    1  2     105  2 Dark metal, with coal pipes    1  0     106  2 Fire-clay    6  8     112  10 Blue metal, with grey beds    5  0     117  10 Dark metal    3  0     120  10 Fire-clay, with water    3  2     124  0 Blue metal    0  6     124  6 Blue metal, with grey beds    7  6     132  0 Light post    6  0     138  0 Grey post    11  0     149  0 Blue metal    1  0     150  0 Light post girdle, with water    1  0     151  0 Dark metal, with coal pipes    3  0     154  0 Extra hard post, into    9  3     163  3

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910

  original entry for sinking/boring number 2854 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910"

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