Craghead Colliery
Oswald Pit
Account of Strata sunk through in the Oswald Pit, Holmside Royalty, 1878
Shaft Details
Sunk: 1878, Closed: 11 Apr 1969
Approximate surface level 639 feet above sea (Ordnance datum)
Switch to measurements in:
fathoms, feet & inches, or metres
 
|
|
|
|
| Geology encountered |
Thickness |
|
Depth |
| |
ft. |
in. |
|
ft. |
in. |
| Soft blue metal, through hade of fault |
178 |
0 |
|
178 |
0 |
| Grey metal |
2 |
0 |
|
180 |
0 |
| Black metal |
20 |
0 |
|
200 |
0 |
| COAL - Five-Quarter Seam |
4 |
0 |
|
204 |
0 |
| COAL, good |
3 |
3 |
|
|
|
| COAL, splint |
0 |
9 |
|
|
|
| Grey post, with iron girdles |
23 |
0 |
|
227 |
0 |
| Dark brown whin |
1 |
8 |
|
228 |
8 |
| Strong white post |
8 |
4 |
|
237 |
0 |
| Grey post |
23 |
8 |
|
260 |
8 |
| COAL - Main Coal Seam |
5 |
2 |
|
265 |
10 |
| COAL, coarse |
0 |
10 |
|
|
|
| COAL, good |
4 |
4 |
|
|
|
| Fire-clay |
2 |
0 |
|
267 |
10 |
| White post, with coal pipes |
15 |
2 |
|
283 |
0 |
| Soft grey metal |
24 |
0 |
|
307 |
0 |
| Strong white post |
11 |
3 |
|
318 |
3 |
| Grey post |
6 |
0 |
|
324 |
3 |
| Grey metal |
12 |
0 |
|
336 |
3 |
| Strong white post |
3 |
0 |
|
339 |
3 |
| Strong grey post girdles |
9 |
4 |
|
348 |
7 |
| Post girdle |
1 |
6 |
|
350 |
1 |
| Strong grey post |
3 |
4 |
|
353 |
5 |
| Strong white post |
48 |
0 |
|
401 |
5 |
| COAL - Maudlin Seam |
3 |
2 |
|
404 |
7 |
| COAL |
1 |
10 |
|
|
|
| COAL and stone |
1 |
4 |
|
|
|
| Grey metal, with post girdles |
31 |
0 |
|
435 |
7 |
| COAL - Low Main Seam |
3 |
1 |
|
438 |
8 |
| Grey metal, with post girdles |
4 |
6 |
|
443 |
2 |
| Strong white post, with whin balls |
8 |
6 |
|
451 |
8 |
| Whin |
1 |
3 |
|
452 |
11 |
| Grey metal, with iron girdles |
14 |
7 |
|
467 |
6 |
| COAL - Hutton Seam |
3 |
7 |
|
471 |
1 |
| COAL |
3 |
3 |
|
|
|
| COAL, coarse |
0 |
4 |
|
|
|
| Fire-clay |
6 |
0 |
|
477 |
1 |
| COAL, splint |
1 |
3 |
|
478 |
4 |
| Strong grey metal |
9 |
0 |
|
487 |
4 |
|
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 2776 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"
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