Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Flaggy sandstone, with shaly partings below    7  0     7  0 Blue shale    4  0     11  0 Sandy shale    1  0     12  0 Blue shale    3  0     15  0 Hard blackish sandstone    0  6     15  6 Soft sandy shale    0  6     16  0 Dark grey micaceous sandstone, with annelid markings on surface planes    3  0     19  0 COAL    1  2     20  2 Hard fine grained silicious sandstone    0  6     20  8 Soft sandstone of irregular texture    1  2     21  10 Sandstone, with soft ferruginous concretions    2  0     23  10 Sandy shale    0  6     24  4 Yellow sandstone, irregularly bedded, with many large concretions    4  0     28  4 Sandy micaceous shale, variegated and foliated with worm tracks and ripple marked surface planes    3  0     31  4 White greyish yellowish flags of fine grained sandstone, with ripple marked and worm track surfaces    8  0     39  4

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 2696 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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