Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Clay    192  0     192  0 Grey beds    51  0     243  0 Limestone    6  0     249  0 Whetstone beds (altered shale)    3  0     252  0 Great Whin Sill    150  0     402  0 Whetstone beds (altered shale)    33  0     435  0 Plate    18  0     453  0 Limestone    7  6     460  6 Plate    15  0     475  6 Freestone    12  0     487  6 Plate    45  0     532  6 Limestone (so-called Jew Limestone)    13  6     546  0 Freestone    9  0     555  0 Plate    12  0     567  0 Limestone    3  0     570  0 Freestone and plate (seven beds)    30  0     600  0

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 1721 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"

  main page for Settlingstones (Witherite)