St. Helen's Colliery
Emma Pit
Strata sunk through in the Emma Pit, St. Helen's Colliery. October, 1831
Shaft Details
Sunk: Oct 1831, Closed: 31 Dec 1926
Approximate surface level 365 feet above sea (Ordnance datum)
Switch to measurements in:
fathoms, feet & inches, or metres

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|
| Geology encountered |
Thickness |
|
Depth |
| |
ft. |
in. |
|
ft. |
in. |
| Brown soil |
0 |
8 |
|
0 |
8 |
| Brown clay |
5 |
0 |
|
5 |
8 |
| Sand |
0 |
2 |
|
5 |
10 |
| Brown broken post |
6 |
3 |
|
12 |
1 |
| Grey metal stone |
3 |
6 |
|
15 |
7 |
| Black stone, with clay |
1 |
0 |
|
16 |
7 |
| Grey metal stone |
13 |
5 |
|
30 |
0 |
| Grey post, with metal partings and whin |
11 |
5 |
|
41 |
5 |
| Grey metal |
3 |
11 |
|
45 |
4 |
| Black stone |
1 |
8 |
|
47 |
0 |
| COAL |
0 |
6 |
|
47 |
6 |
| Strong grey metal stone |
7 |
2 |
|
54 |
8 |
| White post, with metal partings |
5 |
8 |
|
60 |
4 |
| Grey metal stone |
5 |
1 |
|
65 |
5 |
| COAL |
1 |
8 |
|
67 |
1 |
| Grey metal, with ironstone balls |
4 |
6 |
|
71 |
7 |
| Strong white post and water |
5 |
5 |
|
77 |
0 |
| Whin |
1 |
3 |
|
78 |
3 |
| White post |
4 |
2 |
|
82 |
5 |
| Dark grey metal |
18 |
3 |
|
100 |
8 |
| Black stone |
7 |
11 |
|
108 |
7 |
| COAL |
0 |
2 |
|
108 |
9 |
| Thill |
4 |
0 |
|
112 |
9 |
| Grey post |
5 |
5 |
|
118 |
2 |
| Whin |
0 |
6 |
|
118 |
8 |
| Strong grey metal, with ironstone |
1 |
11 |
|
120 |
7 |
| Grey metal post, with metal partings |
5 |
6 |
|
126 |
1 |
| Black stone |
0 |
2 |
|
126 |
3 |
| Strong grey post, with water |
6 |
9 |
|
133 |
0 |
| Strong grey metal |
12 |
2 |
|
145 |
2 |
| Strong grey post |
1 |
2 |
|
146 |
4 |
| Black stone |
1 |
6 |
|
147 |
10 |
| Grey metal |
2 |
8 |
|
150 |
6 |
| COAL - Yard Coal or Harvey Seam |
3 |
9 |
|
154 |
3 |
| COAL, top, coarse and splinty |
0 |
4 |
|
|
|
| Danty parting |
0 |
0 |
|
|
|
| COAL,good |
3 |
0 |
|
|
|
| Black swad |
0 |
0½ |
|
|
|
| COAL, bottom, tender |
0 |
4½ |
|
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Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894
original entry for sinking/boring number 1652 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume S-T, published by the North of England Institute of Mining & Mechanical Engineers, 1894"
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