Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Soil at outset    8  0     8  0 Freestone    57  0     65  0 Dark metal    2  0     67  0 Limestone (8-Yard Limestone)    26  9     93  9 Black dant    2  2     95  11 COAL    0  2     96  1 Grey beddy freestone    6  0     102  1 Freestone    40  0     142  1 Blue metal    1  0     143  1 Limestone, mixed with red ochre    0  2     143  3 Beddy limestone and metal    0  4     143  7 Whinstone    15  0     158  7 Hard white stone    1  3     159  10 Freestone    48  0     207  10 Dark blue metal, with iron nodules    10  2     218  0 Dark blue metal, with iron nodules    7  4     225  4 COAL, coarse brown, with spar    0  7     225  11 Whinstone, white at top and dark blue towards bottom coal, a stone run and mixed at top    2  7     228  6 COAL, coarse, with sulphate of iron    0  3     228  9 Dark thilly metal    2  9     231  6 Grey thill stone    11  3     242  9

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894

  original entry for sinking/boring number 1781 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894"

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