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 Shafts  Index  Shafts 

Montagu Main Colliery

Caroline Pit

Section of Strata sunk through in the Caroline Pit, Montagu Main Colliery

Shaft Details

Closed: 1959

Approximate surface level 260 feet above sea (Ordnance datum)

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





























































































Geology encountered   Thickness   Depth
  ft. in.   ft. in.
Walling    14  0     14  0
Mild freestone    38  0     52  0
Shelly post, mixed with coal pipes    1  8     53  8
Post    16  8     70  4
Mild black metal    1  1     71  5
Post    27  7     99  0
Grey metal    4  6     103  6
Blue metal    3  6     107  0
COAL, burns to white ash    1  6     108  6
Soft fire clay    4  0     112  6
COAL, goaf — Benwell Main Coal Seam, broken strata    15  9     128  3
Fire clay (on to wood wedging cribs)    4  9     133  0
Grey metal and whin girdles    14  3     147  3
Post, mixed with whin    15  1     162  4
Grey metal, with whin girdles    4  5     166  9
Post, with gullets and water (originally wedged off)    15  3     182  0
COAL    0  3     182  3
Fire clay    2  0     184  3
Grey metal and iron girdles    8  7     192  10
Post    11  8     204  6
COAL    0  4     204  10
Fire clay, mixed with iron balls    1  3     206  1
Strong grey metal    23  8     229  9
COAL    0  3     230  0
Coarse fire clay    2  0     232  0
Grey metal    4  11     236  11
COAL - Tyne Level Seam    1  1     238  0
Fire clay    0  4     238  4
Post and coarse strong metal    5  4     243  8
Whin    1  4     245  0
Grey metal, with iron girdles    15  0     260  0
Grey metal, with iron girdles    9  0     269  0
Blue metal, with iron girdles    5  5     274  5
Post, with whin    15  0     289  5
Blue metal and post girdles    6  0     295  5
COAL, goaf — Beaumont Seam    26  0     321  5
Thill stone, to metal wedging crib laid on post    5  0     326  5
Strong white post, no partings    16  1     342  6
COAL - Hodge Seam    0  5     342  11
Grey metal, mixed with iron    4  8     347  7
Grey post, with metal partings, very strong    34  2     381  9
Troubly metal    7  8     389  5
COAL    0  3     389  8
Fire clay    0  10     390  6
Grey metal    11  1     401  7
Brown post    24  0     425  7
COAL - Stone Coal Scam    1  6     427  1
Good fire clay    1  7     428  8
Coal pipe (this coal much thicker than the Engine Pit)    0  4     429  0
Coarse fire clay or metal    10  5     439  5
Post, mixed with whin    23  5     462  10
Grey metal and post girdles    4  0     466  10
COAL - Low Main or Lower Busty Seam    3  4     470  2
    COAL, top    0  4       
    Black band, or badger    0  4       
    COAL, good    2  8       
Good fire clay    1  0     471  2
COAL, coarse and brassy    0  4     471  6
Grey metal and black stone, with iron girdles    15  2     486  8
COAL - Three-Quarter Seam    2  2     488  10
    COAL    1  5       
    Dark fire clay band    0  3       
    COAL, bottom    0  6       
Grey metal    5  1     493  11
Dark grey post    16  9     510  8
Dark grey metal, with girdles    17  0     527  8
White post    12  10     540  6
COAL - Denton Low Low Main or Brockwell Seam    3  2     543  8
    COAL, good    3  0       
    Splint    0  2       
Fire clay, good, on to scaffold    1  3     544  11
Grey metal    5  0     549  11
COAL    0  7     550  6
Post, with metal partings    22  5     572  11

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 1375 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 Montagu Main Colliery

 


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