Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Outset    6  0     6  0 Soil and gravel    9  6     15  6 Freestone    7  0     22  6 Grey beds    9  6     32  0 COAL    0  6     32  6 Freestone    6  0     38  6 Grey beds    12  0     50  6 Coarse band of ironstone    0  11     51  5 Plate    2  6     53  11 Coarse band of ironstone    0  7     54  6 Plate    7  0     61  6 COAL - Upper Hall Seam    1  3     62  9 Girdle    0  7     63  4 Plate    6  10     70  2 Limestone    1  0     71  2 Black limestone    1  5     72  7 Plate (top of north borehole near the office)    18  6     91  1 COAL - Furnace Seam    1  3     92  4

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume A-B, published by the North of England Institute of Mining & Mechanical Engineers, 1878

  original entry for sinking/boring number 0098 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume A-B, published by the North of England Institute of Mining & Mechanical Engineers, 1878"