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 Shafts  Index  Shafts 

Jarrow Colliery

Alfred Pit

Account of Strata sunk through in the Alfred Pit, Jarrow Colliery. Commenced June 29th, 1801.

Shaft Details

Sunk: 29 Jun 1801

Approximate surface level 55 feet above sea (Ordnance datum)

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







































































































































Geology encountered   Thickness   Depth
  ft. in.   ft. in.
Clay    61  10     61  10
Dry sand, mixed with clay    5  0     66  10
Sand, with about 300 gallons of water per hour near the top    7  0     73  10
Gravel, full of large whin and freestone tumblers, some about 4 feet in diameter    6  6     80  4
COAL, outburst    0  10     81  2
Blue metal: water cribbed off    10  0     91  2
Post girdle    0  8     91  10
Grey metal    5  0     96  10
Black stone    5  0     101  10
Grey metal, with about 250 gallons of water per hour    9  0     110  10
COAL    1  6     112  4
Grey thill    1  6     113  10
Grey metal, with about 900 gallons of water per hour    3  0     116  10
Soft cashy parting    0  2     117  0
Grey post, with grey metal partings    7  0     124  0
Grey metal    4  4     128  4
Black slaty stone    0  6     128  10
COAL    1  6     130  4
    COAL    0  4       
    Soft white band    0         
    COAL    1         
Grey thill    2  0     132  4
Grey metal, mixed with post    3  4     135  8
White post, with metal partings, and about 7,000 gallons of water per hour    6  4     142  0
Grey metal stone part of water tubbed off    2  8     144  8
White post    1  10     146  6
Blue stone: more water tubbed off    3  6     150  0
Grey metal, with scares of post    1  6     151  6
Black stone    5  6     157  0
Grey metal    1  2     158  2
COAL    0  8     158  10
Strong grey thill    3  6     162  4
Grey metal, clouded with post and post girdles    9  6     171  10
Post girdles, with metal partings    1  4     173  2
Post girdle, very strong    2  0     175  2
Grey metal, with scares of post    2  0     177  2
White post    7  7     184  9
Grey metal, with scares of post    2  7     187  4
Blue stone    6  5     193  9
Post girdle, with metal partings    6  0     199  9
Grey metal, with scares of post    1  0     200  9
Blue metal stone    4  0     204  9
Post, with grey metal balls    5  0     209  9
Strong white post, inclining to whin at bottom    10  0     219  9
COAL, 8 inches thick on south side and 2 inches on north side    0  5     220  2
Grey thill    1  0     221  2
Grey and blue metal stone, mixed with girdles    8  0     229  2
Black stone    0  4     229  6
COAL    0  2     229  8
Fine blue stone    72  11     302  7
Black stone    4  6     307  1
COAL    0  9     307  10
Soft white band    0  3     308  1
COAL, mixed with black slate    2  0     310  1
Grey thill    2  6     312  7
Post, with grey metal balls    6  8     319  3
Strong white and green post, with dark red partings and green scares of fire-stone    44  2     363  5
Blue metal, with balls of coal    9  7     373  0
COAL    0  5     373  5
Dark grey thill    1  8     375  1
White thill, mixed with post    1  2     376  3
Blue metal    0  3     376  6
White thill, mixed with post    1  10     378  4
Blue metal    0  6     378  10
White thill, mixed with post    4  4     383  2
COAL    0  3     383  5
Grey thill    0  10     384  3
White post, mixed with whin    3  0     387  3
Scamy post    3  4     390  7
Blue metal stone    2  4     392  11
Post girdle    1  0     393  11
Blue metal    5  6     399  5
Black stone    1  6     400  11
COAL    2  1     403  0
    COAL    0  10       
    Black slaty band    0  4       
    COAL    0  11       
Grey posty thill    4  0     407  0
Grey metal stone mixed with whin and ironstone girdles    24  0     431  0
Blue metal stone, mixed with iron girdles    13  0     444  0
Black stone    5  8     449  8
COAL    0  4     450  0
Grey thill    2  0     452  0
Grey scamy post    6  0     458  0
Grey post, mixed with whin    2  0     460  0
Blue metal    3  11     463  11
COAL    0  1½     464  0½
Grey thill    3  0     467  0½
Greyish post    13  3     480  3½
Blue metal    3  6     483  9½
COAL    0  9½     484  7
Strong dark grey thill    4  3     488  10
Blue metal    5  6     494  4
Whin, mixed with post girdles    2  6     496  10
Blue metal    6  8     503  6
Brassy whin girdle    0  8     504  2
COAL, with a black slaty band 3 inches thick    0  7     504  9
Strong grey thill    7  6     512  3
Blue metal    10  0     522  3
COAL    1  3     523  6
Grey thill    3  0     526  6
Dark grey posty thill    3  0     529  6
Blue and grey metal, with thin post girdles    4  0     533  6
Strong white post: Seventy Fathoms Post    41  0½     574  6½
Blue metal    2  3     576  9½
Post    1  3     578  0½
Black stone    0  6     578  6½
COAL - Seventy Fathom Seam    0  9     579  3½
Grey thill    3  0     582  3½
Strong grey metal stone    5  0     587  3½
Post    3  6     590  9½
Blue metal    3  6     594  3½
Black stone    0  1     594  4½
Grey thill    3  0     597  4½
Blue metal, with post and ironstone girdles    7  8     605  0½
Post: generally called the Seventy Fathoms Post    55  0     660  0½
Post, with metal partings    7  0     667  0½
Black stone    4  0     671  0½
Grey metal, mixed with post    7  0     678  0½
Grey metal    1  6     679  6½
Black stone    17  0     696  6½
Thill, mixed with grey metal    7  8     704  2½
Strong white post    51  0     755  2½
COAL - High Main Seam    6  2     761  4½
    COAL    3  6       
    Slaty band    0  1       
    Splint    0  1       
    COAL    2  6       

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910

  original entry for sinking/boring number 2801 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910"

  main page for Jarrow Colliery

 


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