Shafts	Index	Shafts

Geology encountered   Thickness   Depth   ft. in.   ft. in. Soil    1  7     1  7 Sand and gravel    27  0     28  7 Limestone    57  0     85  7 Yellow sand (water got near the bottom, which increased to 6 tubs of 60 gallons an hour)    110  9     196  4 Confused post    2  0     198  4 Grey metal stone (first wedging crib laid at top of grey metal)    5  0     203  4 Red metal, with water    7  0     210  4 Black band, with water    0  4     210  8 Soft red metal and water    19  11     230  7 Soft blue metal, with water (second wedging cribs laid about 3½ fathoms into this blue metal)    66  6     297  1 Whinstone, with water (had 70 tubs of 60 gallons per hour)    0  6     297  7 Black metal, with water    1  4     298  11 COAL    1  8     300  7 Grey thill (third wedging crib laid at this thill, and stopped the whole of the water — had in all 36 tubs of 80 gallons per hour)    0  5     301  0 White post (got a little water in this post)    3  0     304  0 Soft red metal    5  0     309  0 Grey and red post (on entering this post the large feeder was got, and was drawn out of bottom with gin; pumps were then put in, and at 9 fathoms into post, laid fourth crib; the water was only partially stopped)    60  0     369  0 Soft blue metal    0  6     369  6 Soft black metal    0  6     370  0 Blue metal, with bands of coal    3  4     373  4 Grey metal stone, with post girdles and water (laid two more cribs in this metal, and stopped all the water)    11  1     384  5 Black metal    7  0     391  5 Grey thill    1  6     392  11 COAL, and a drift driven through to Carolina Pit    2  0     394  11 Grey thill    1  0     395  11 Grey post, with water (last wedging crib laid on the bottom, and tubbing all got in, but not wedged, owing to the breaking of malleable iron shaft; this crib afterwards cut out, and metal substituted)    3  7     399  6 Total depth to where left off in 1827, when the water overpowered the engines, and as measured when resumed on Nov. 15th, 1831    0  0     399  6 Strong white post    3  5     402  11 Dark post    2  0     404  11 Strong white post    1  8     406  7 Strong grey metal to where was laid a wedging crib, which carried the whole of the water    3  11     410  6 Grey metal    3  10     414  4 Blue metal    20  1     434  5 COAL    0  6     434  11     COAL    0  2            Band    0  1            COAL    0  3        White thill    1  5     436  4 Post    3  0     439  4 Very strong grey metal, mixed with whin and ironstone girdles, upon which a crib (wood) was laid, but afterwards cut out    7  3     446  7 Blue stone    6  3     452  10 Black stone    0  5     453  3 COAL    0  10     454  1 Thill stone    1  10     455  11 Post, to where two metal wedging cribs are laid, the water has been accumulating for the last 5 fathoms, which is all borne up by this crib, and the pit quite dry — engine, 1 stroke in about 6 minutes    0  11     456  11 Post (continuation of the above)    7  10     464  9 Grey metal, mixed with whin    2  2     466  11 Post    4  8     471  7 Blue metal    10  0     481  7 COAL    4  9     486  5     COAL    1  9            Band    0  11            COAL    2  1½        (A drift driven through to Carolina Pit, and got water)    0  0     486  5 Thill stone, in which are laid two metal wedging cribs that carried all the feeders    2  4     488  9 Grey and white post    1  10     490  7 Grey metal    1  10     492  5 White post, with water (about 300 gallons per minute)    1  10     494  3 White post, with blue metal partings, very thin    33  5     527  8 Blue metal    0  6     528  2 White post, with two thin blue metal partings (one at the bottom)    2  11     531  2 COAL    1  11     533  1 Black stone    1  0     534  1 White thill    5  6     539  7 Grey metal, in which two wedging cribs are laid to carry and tub off the water    4  11     544  6 Grey metal (continued)    19  0     563  6 Post, with threads and water    2  9     566  3 Blue stone    0  8     566  11 Strong post    9  4     576  3 Post, with partings and water (about 90 gallons a minute)    38  9     615  1 COAL    0  4     615  5 Thill    3  8     619  1 Grey metal, with threads, to where a wedging crib is laid for the purpose of securing the pit    0  3     619  4 Grey metal (continued below the crib)    3  0     622  4 Grey metal, mixed with post girdles    12  8     635  0 Black stone    16  0     651  0 COAL    1  0     652  0 Thill    6  10     658  10 Post, mixed with grey metal    8  7     667  5 Strong post to two metal wedging cribs    2  5     669  10 Post, very close and strong, without any water (drew the pumps after finishing the last tub)    44  7     714  5 Grey metal, with post girdles, in which there were three leaders of dykes, apparently dipping to West, and very soft    18  0     732  5 Blue metal    1  6     733  11 COAL - Three-Quarter Seam    6  6     740  5     COAL, with about 20 inches of coarse top coal, and coarse coal at the bottom    6  6        Black thill    1  10     742  3 Very strong grey metal    7  9     750  0 Ironstone girdle    0  4     750  4 White thill stone and seggar clay, mixed with grey metal    14  7     764  11 Grey metal    0  0     764  11 Black metal    0  8     765  7 COAL, mixed with stone    1  10     767  5 Thill    2  6     769  11 Blue and grey metal    4  10     774  9 COAL    0  1     774  10 Strong grey metal, inclining to post    16  0     790  10 White post, at bottom of which a leader of a dyke was discovered    7  8     798  6 Grey metal    4  9     803  3 COAL - Five-Quarter Seam    1  9     805  0     COAL, in which is a trouble rising to East 4 feet    1  9        Thill    7  4     812  4 Black stone    1  6     813  10 Grey metal, with post girdles    7  2     821  0 Post    9  10     830  10 Black stone    0  6     831  4 Grey metal    14  10     846  2 Post    1  0     847  2 Grey metal    1  2     848  4 Whin    1  5     849  9 Blue stone (much disturbed and broken, and at about 3 fathoms into it got the leader of a trouble rising to the East)    32  1     881  10 COAL (supposed Main Coal, but only found on the West side of the leader got in the blue stone above)    6  6     888  4 Very mild blue metal    35  6     923  10 COAL - Low Main Seam    7  7     931  5     COAL, good    5  6            Black swad    0  3            COAL, bottom    1  10        Black stone    0  3     931  8 Grey metal    20  5     952  1 Post    1  1     953  2 Black stone    1  3     954  5 COAL, splinty    2  2     956  7 Black stone, mixed with coal    3  10     960  5 Grey metal    1  0     961  5 Strong post, with grey metal partings    15  6     976  11 Blue metal, mixed with grey metal girdle    7  0     983  11 Very soft black metal    5  4     989  3 COAL    0  10     990  1 Black thill    2  10     992  11 White post    0  6     993  5 Grey metal    1  6     994  11 White post (walled off)    4  8     999  7 Grey metal, mixed with post girdles    9  4     1008  11 Black stone    0  9     1009  8 COAL    1  8     1011  4     COAL    0  7            Band    0  2            COAL    0  11        Black stone    1  10     1013  2 Grey metal, mixed with post girdles    2  6     1015  8 Grey metal    5  6     1021  2 Whin, mixed with post    2  4     1023  6 Grey metal    1  6     1025  0 Black stone    5  2     1030  2 Grey metal    1  6     1031  8 Whin, mixed with post    0  6     1032  2 Grey metal, mixed with post girdles    6  6     1038  8 Blue stone    0  9     1039  5 Black stone    0  2     1039  7 COAL - Hutton Seam    4  5     1044  1     COAL, good    3  11½            COAL, coarse    0  6        Thill    1  8     1045  9 COAL    1  1     1046  10     COAL, coarse and brassy    0  6            COAL, coarse    0  7        Sunk below seam as sump :—    0  0     1046  10 Black stone    0  6     1047  4 Thill    2  0     1049  4 Grey metal    16  9     1066  1 Black stone    0  8     1066  9      0  5     1067  2 Thill    3  0     1070  2

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume C-E, published by the North of England Institute of Mining & Mechanical Engineers, 1881

  original entry for sinking/boring number 0804 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume C-E, published by the North of England Institute of Mining & Mechanical Engineers, 1881"

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