Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Outset    4  6     4  6 Brown sandy soil    1  3     5  9 Sand, with a little water    4  3     10  0 Fine loamy clay    27  4     37  4 Strong stony clay    13  6     50  10 Brown freestone ramble    15  2     66  0 Pudding stone (resembling gravel)    0  10     66  10 Light blue stone    7  6     74  4 Grey metal, jointy    10  5     84  9 COAL (leader of a dyke downcast to the North)    0  3     85  0 Soft thill stone    4  0     89  0 Grey metal stone    7  3     96  3 Brown freestone (foundation)    18  2     114  5 Bored :—    0  0     114  5 Black stone    4  8     119  1 COAL    1  9     120  10 Thill stone    1  6     122  4 Brown stone    2  4     124  8 Blue stone    1  6     126  2 COAL    0  7     126  9 Grey thill stone    1  7     128  4 Blue stone    5  7     133  11 Grey metal stone    7  1     141  0 Post stone (set away the water)    12  1     153  1          9  0     153  1     Sea Level    0  0     153  1          3  1     153  1 Blue stone    14  10     167  11 COAL - Hutton Seam    4  6     172  5

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885

  original entry for sinking/boring number 0933 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885"

  main page for Frankland Colliery