Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Soil, clay, etc.    12  0     12  0 Plate and shale    18  0     30  0 Strong freestone    16  0     46  0 Plate and shale    6  0     52  0 Freestone    50  4     102  4 Plate and shale    21  7     123  11 Limestone    23  0     146  11 Plate and strong shale    10  0     156  11 Freestone    18  0     174  11 Strong grey plate    15  0     189  11 COAL    3  3     193  2

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 1921 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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