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 Shafts  Index  Shafts 

Percy Main Colliery

Flatworth Pit

Flatworth Pit, Percy Main Colliery

Shaft Details

Approximate surface level 146 feet above sea (Ordnance datum)

Switch to measurements in:  fathoms, feet & inches, or metres





























































































Geology encountered   Thickness   Depth
  ft. in.   ft. in.
Outset    5  0     5  0
Soil    1  0     6  0
Brown gravelly clay    6  0     12  0
Sand    0  10     12  10
Blue gravelly clay    1  3     14  1
Clay and sand    0  9     14  10
Blue gravelly clay    16  6     31  4
Sand    0  10     32  2
Sand and clay    1  4     33  6
Sand, with water    2  0     35  6
Blue gravelly clay    57  2     92  8
Sand and clay    6  0     98  8
Blue gravelly clay    47  4     146  0
Blue gravelly clay    2  11     148  11
Brown metal and brown post, with water    37  0     185  11
Grey metal, with post girdles and water    4  0     189  11
Broken post, with water    21  0     210  11
Grey post, with metal balls    4  0     214  11
Blue metal stone    27  0     241  11
Black stone, mixed with coal    3  0     244  11
Grey metal stone    7  0     251  11
Red and blue metal stone    5  0     256  11
Grey scamy post    7  0     263  11
Red and blue metal    6  0     269  11
Low ground stone, grey post, and much water    53  0     322  11
Brown and grey post, with water    2  0     324  11
Red and blue metal    4  0     328  11
Low ground stone, coal    1  0     329  11
Grey thill stone    7  0     336  11
Black stone    2  0     338  11
Grey whin    1  0     339  11
Grey metal stone    16  0     355  11
COAL - 60 Fathoms Coal    1  2     357  1
Grey thill stone    2  0     359  1
Grey scamy post    34  0     393  1
Blue metal stone    18  0     411  1
Brown whin    6  0     417  1
Scamy post    12  0     429  1
Black stone    2  0     431  1
COAL    1  4     432  5
Grey thill stone    3  0     435  5
Blue metal stone, with water    13  0     448  5
Grey scamy post    12  0     460  5
Grey metal stone    6  6     466  11
COAL, foul    0  6     467  5
Grey thill stone    13  4     480  9
COAL, foul    1  2     481  11
Grey thill stone    5  7     487  6
White post    3  6     491  0
Blue metal stone, with whin    12  0     503  0
Black stone    3  0     506  0
White post girdles    8  0     514  0
COAL - 70 Fathoms Coal    0  5     514  5
Grey thill stone    18  9     533  2
White post (called the 70 Fathoms Post)    80  0     613  2
Grey metal    18  0     631  2
Grey post girdle    3  0     634  2
Black stone    23  6     657  8
Post - Main Post    62  0     719  8
COAL - High Main Seam    6  6     726  2

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887

  original entry for sinking/boring number 1531 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume L-R, published by the North of England Institute of Mining & Mechanical Engineers, 1887"

  main page for Percy Main Colliery

 


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