Greenlawalls Colliery
Lady Pit
Section of Strata sunk through in the Lady Pit to the Bulman and Cowper Eye Seams, Greenlawalls Colliery
Shaft Details
Approximate surface level 238 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. |
| Blue clay |
6 |
9 |
|
6 |
9 |
| White freestone |
34 |
0 |
|
40 |
9 |
| COAL - Hardy Seam |
3 |
6 |
|
44 |
3 |
| COAL |
2 |
0 |
|
|
|
| Limestone |
0 |
10 |
|
|
|
| COAL |
0 |
8 |
|
|
|
| Brown metal |
1 |
6 |
|
45 |
9 |
| Limestone |
0 |
6 |
|
46 |
3 |
| COAL - Diamond Seam |
5 |
6 |
|
51 |
9 |
| COAL |
1 |
6 |
|
|
|
| Shale |
2 |
0 |
|
|
|
| COAL |
2 |
0 |
|
|
|
| Soft blue shale |
0 |
5 |
|
52 |
2 |
| White freestone |
1 |
10 |
|
54 |
0 |
| Hard white freestone |
2 |
2 |
|
56 |
2 |
| Soft blue metal |
0 |
4 |
|
56 |
6 |
| Black metal |
0 |
8 |
|
57 |
2 |
| White metal |
2 |
9 |
|
59 |
11 |
| COAL |
0 |
2 |
|
60 |
1 |
| Shale |
3 |
10 |
|
63 |
11 |
| Hard white freestone |
4 |
6 |
|
68 |
5 |
| Blue shale |
5 |
9 |
|
74 |
2 |
| Freestone |
2 |
4 |
|
76 |
6 |
| Freestone bands |
6 |
6 |
|
83 |
0 |
| Blue shale |
14 |
0 |
|
97 |
0 |
| Freestone band |
1 |
0 |
|
98 |
0 |
| COAL |
0 |
9 |
|
98 |
9 |
| Black shale |
0 |
9 |
|
99 |
6 |
| COAL - Bulman Main Seam |
4 |
9 |
|
104 |
3 |
| COAL, top |
1 |
2½ |
|
|
|
| Chalk stone |
0 |
0½ |
|
|
|
| COAL, splint |
0 |
9 |
|
|
|
| COAL, rough |
0 |
7 |
|
|
|
| Band stone |
0 |
3 |
|
|
|
| COAL, ground |
1 |
1 |
|
|
|
| Chalk stone |
0 |
1 |
|
|
|
| COAL, smithy |
0 |
9 |
|
|
|
| Shale |
1 |
0 |
|
105 |
3 |
| Limestone |
1 |
3 |
|
106 |
6 |
| COAL |
0 |
6 |
|
107 |
0 |
| Shale |
21 |
0 |
|
128 |
0 |
| Freestone |
11 |
0 |
|
139 |
0 |
| Limestone |
1 |
4 |
|
140 |
4 |
| Tills |
0 |
10 |
|
141 |
2 |
| Limestone |
2 |
0 |
|
143 |
2 |
| COAL |
0 |
6 |
|
143 |
8 |
| Freestone bands |
2 |
10 |
|
146 |
6 |
| COAL |
2 |
8 |
|
149 |
2 |
| COAL |
0 |
6 |
|
|
|
| Tills |
1 |
0 |
|
|
|
| COAL |
1 |
2 |
|
|
|
| Freestone bands |
10 |
0 |
|
159 |
2 |
| Freestone |
12 |
6 |
|
171 |
8 |
| Shale |
4 |
6 |
|
176 |
2 |
| Freestone bands |
13 |
3 |
|
189 |
5 |
| Tills |
4 |
0 |
|
193 |
5 |
| Limestone |
2 |
0 |
|
195 |
5 |
| COAL |
0 |
8 |
|
196 |
1 |
| Tills |
3 |
0 |
|
199 |
1 |
| COAL - Three-Quarter Seam |
2 |
8 |
|
201 |
9 |
| COAL, top |
1 |
2 |
|
|
|
| Limestone |
0 |
3 |
|
|
|
| COAL |
1 |
1 |
|
|
|
| Tills |
3 |
0 |
|
204 |
9 |
| COAL |
0 |
6 |
|
205 |
3 |
| Tills |
4 |
0 |
|
209 |
3 |
| Limestone |
1 |
4 |
|
210 |
7 |
| COAL - Cowper Eye Seam |
2 |
6 |
|
213 |
1 |
| COAL, splint |
1 |
2 |
|
|
|
| Macket |
0 |
3 |
|
|
|
| COAL, ground |
1 |
1 |
|
|
|
| Shale |
3 |
0 |
|
216 |
1 |
| Limestone |
1 |
6 |
|
217 |
7 |
| Tills |
2 |
0 |
|
219 |
7 |
|
Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885
original entry for sinking/boring number 0990 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Volume F-K, published by the North of England Institute of Mining & Mechanical Engineers, 1885"
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