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Dawdon Colliery
Castlereagh Pit
Account of Strata sunk through in the Castlereagh Pit, Dawdon Colliery
Shaft Details
Sunk: 05 Oct 1907, Closed: 25 Jul 1991
Approximate surface level 110 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. |
| Soil |
1 |
0 |
|
1 |
0 |
| Clay |
5 |
6 |
|
6 |
6 |
| Gravel |
4 |
6 |
|
11 |
0 |
| Strong marl, with limestone girdles |
50 |
10 |
|
61 |
10 |
| Limestone, with strong marl partings |
32 |
7 |
|
94 |
5 |
| Marl, with gullets |
15 |
7 |
|
110 |
0 |
| Marl, with gullets |
69 |
0 |
|
179 |
0 |
| Hard grey limestone |
34 |
6 |
|
213 |
6 |
| Yellow limestone, with red marl |
13 |
2 |
|
226 |
8 |
| Hard grey limestone |
65 |
7 |
|
292 |
3 |
| Grey and yellow limestone |
17 |
6 |
|
309 |
9 |
| Yellow limestone |
22 |
0 |
|
331 |
9 |
| Hard grey limestone |
5 |
6 |
|
337 |
3 |
| Hard grey limestone in panels |
30 |
7½ |
|
367 |
10½ |
| Marl slate |
2 |
1 |
|
369 |
11½ |
| Soft shale |
0 |
1¼ |
|
|
|
| Hard shale |
1 |
11¾ |
|
|
|
| Fish bed |
1 |
0½ |
|
371 |
0 |
| Blue-grey sand |
75 |
0 |
|
446 |
0 |
| Brown-grey sand |
17 |
4 |
|
463 |
4 |
| Very hard post girdle |
1 |
0 |
|
464 |
4 |
| Dark grey shale, with red shale bands |
21 |
0 |
|
485 |
4 |
| COAL |
0 |
3 |
|
485 |
7 |
| Grey shale |
2 |
5 |
|
488 |
0 |
| COAL |
4 |
4½ |
|
492 |
4½ |
| Grey post |
2 |
2½ |
|
494 |
7 |
| Seggar-clay |
11 |
8 |
|
506 |
3 |
| COAL |
0 |
10 |
|
507 |
1 |
| Grey shale |
5 |
9 |
|
512 |
10 |
| Dark grey shale |
2 |
10 |
|
515 |
8 |
| COAL |
0 |
1¾ |
|
515 |
9¾ |
| Dark grey shale |
0 |
10¼ |
|
516 |
8 |
| Grey post, with shale partings |
9 |
9 |
|
526 |
5 |
| Very hard grey post |
1 |
1 |
|
527 |
6 |
| Grey post, with shale partings |
12 |
0 |
|
539 |
6 |
| Dark grey shale |
0 |
9 |
|
540 |
3 |
| Grey shale |
0 |
4 |
|
540 |
7 |
| Post girdle |
0 |
2 |
|
540 |
9 |
| Grey shale |
0 |
3 |
|
541 |
0 |
| COAL |
3 |
5 |
|
544 |
5 |
| COAL |
1 |
5 |
|
|
|
| Band |
0 |
1½ |
|
|
|
| COAL |
1 |
10½ |
|
|
|
| Seggar-clay |
4 |
5 |
|
548 |
10 |
| Grey shale |
3 |
3 |
|
552 |
1 |
| COAL |
0 |
7 |
|
552 |
8 |
| Seggar-clay |
10 |
10 |
|
563 |
6 |
| Grey shale |
5 |
6 |
|
569 |
0 |
| Grey shale, with patches of post |
18 |
0 |
|
587 |
0 |
| Grey shale, with post girdles |
6 |
5 |
|
593 |
5 |
| Grey post |
1 |
10 |
|
595 |
3 |
| Grey shale |
7 |
0 |
|
602 |
3 |
| Grey shale, with patches of post |
41 |
0 |
|
643 |
3 |
| Grey shale, with post girdles |
4 |
0 |
|
647 |
3 |
| Grey shale, with patches of post |
3 |
0 |
|
650 |
3 |
| Grey shale |
12 |
8 |
|
662 |
11 |
| Grey shale, with post girdles |
10 |
10 |
|
673 |
9 |
| COAL |
0 |
7 |
|
674 |
4 |
| Dark seggar-clay |
1 |
10 |
|
676 |
2 |
| Dark grey shale |
4 |
1 |
|
680 |
3 |
| Grey post |
4 |
5 |
|
684 |
8 |
| Bastard post |
1 |
0 |
|
685 |
8 |
| Grey post |
5 |
5 |
|
691 |
1 |
| COAL |
0 |
10 |
|
691 |
11 |
| Seggar-clay |
7 |
7 |
|
699 |
6 |
| Grey shale |
15 |
9 |
|
715 |
3 |
| Grey shale, with post girdles |
4 |
4 |
|
719 |
7 |
| Seggar-clay |
8 |
8 |
|
728 |
3 |
| Grey shale |
15 |
3 |
|
743 |
6 |
| Grey post, in beds |
75 |
0 |
|
818 |
6 |
| Grey post, with patches of grey shale |
3 |
0 |
|
821 |
6 |
| Grey post |
23 |
1 |
|
844 |
7 |
| COAL |
0 |
4 |
|
844 |
11 |
| Seggar-clay |
2 |
4 |
|
847 |
3 |
| Grey post, in beds |
4 |
10 |
|
852 |
1 |
| Grey shale |
4 |
10½ |
|
856 |
11½ |
| COAL |
0 |
3½ |
|
857 |
3 |
| Seggar-clay |
5 |
6 |
|
862 |
9 |
| Grey shale, with panels of post |
13 |
0 |
|
875 |
9 |
| COAl |
0 |
6 |
|
876 |
3 |
| Seggar-clay |
0 |
11 |
|
877 |
2 |
| Grey post |
14 |
1 |
|
891 |
3 |
| Grey shale |
29 |
7 |
|
920 |
10 |
| COAL |
3 |
1 |
|
923 |
11 |
| Seggar-clay |
4 |
10 |
|
928 |
9 |
| Post |
14 |
1 |
|
942 |
10 |
| Grey shale |
0 |
6 |
|
943 |
4 |
| Grey post |
30 |
5 |
|
973 |
9 |
| COAL - Three-Quarter Seam |
2 |
6 |
|
976 |
3 |
| COAL |
2 |
6 |
|
|
|
| Grey post, with shale partings |
3 |
1 |
|
979 |
4 |
| Grey post |
4 |
11 |
|
984 |
3 |
| Grey shale |
5 |
2 |
|
989 |
5 |
| COAL |
1 |
1 |
|
990 |
6 |
| Seggar-clay |
7 |
0 |
|
997 |
6 |
| Grey shale |
9 |
10 |
|
1007 |
4 |
| Grey shale, with post girdles |
5 |
0 |
|
1012 |
4 |
| Grey post |
14 |
0 |
|
1026 |
4 |
| Grey shale, with post girdles |
9 |
0 |
|
1035 |
4 |
| Grey shale |
16 |
6 |
|
1051 |
10 |
| COAL |
0 |
11 |
|
1052 |
9 |
| Seggar-clay |
0 |
6 |
|
1053 |
3 |
| Grey post |
9 |
1 |
|
1062 |
4 |
| Grey shale |
5 |
4 |
|
1067 |
8 |
| COAL, splinty |
0 |
8 |
|
1068 |
4 |
| Seggar-clay |
0 |
6 |
|
1068 |
10 |
| Grey post, with shale partings |
13 |
10 |
|
1082 |
8 |
| Grey shale |
16 |
8 |
|
1099 |
4 |
| Grey post |
4 |
0 |
|
1103 |
4 |
| COAL, splinty |
0 |
4 |
|
1103 |
8 |
| Seggar-clay |
1 |
8 |
|
1105 |
4 |
| Grey shale |
7 |
4 |
|
1112 |
8 |
| COAL, splinty |
0 |
8 |
|
1113 |
4 |
| Seggar-clay |
0 |
6 |
|
1113 |
10 |
| Grey post |
21 |
6 |
|
1135 |
4 |
| Grey shale, with post girdles |
8 |
0 |
|
1143 |
4 |
| Grey shale |
18 |
0 |
|
1161 |
4 |
| Grey post |
6 |
0 |
|
1167 |
4 |
| Grey shale |
11 |
5 |
|
1178 |
9 |
| COAL - Five-Quarter Seam |
6 |
4 |
|
1185 |
1 |
| COAL |
0 |
8 |
|
|
|
| Grey band |
0 |
3 |
|
|
|
| COAL |
2 |
3 |
|
|
|
| Grey band |
0 |
0½ |
|
|
|
| COAL |
2 |
3 |
|
|
|
| Grey band |
0 |
2 |
|
|
|
| COAL |
0 |
8½ |
|
|
|
| Seggar-clay |
10 |
1 |
|
1195 |
2 |
| Strong grey post |
23 |
1 |
|
1218 |
3 |
| COAL |
0 |
8 |
|
1218 |
11 |
| Seggar-clay |
2 |
2 |
|
1221 |
1 |
| Grey shale |
12 |
0 |
|
1233 |
1 |
| COAL |
1 |
9 |
|
1234 |
10 |
| Seggar-clay |
2 |
6 |
|
1237 |
4 |
| Grey shale |
16 |
9 |
|
1254 |
1 |
| Grey post |
15 |
0 |
|
1269 |
1 |
| Grey shale |
6 |
3 |
|
1275 |
4 |
| COAL |
4 |
8 |
|
1280 |
0 |
| COAL |
3 |
7 |
|
|
|
| COAL, splinty |
1 |
1 |
|
|
|
| Black shale |
3 |
0 |
|
1283 |
0 |
| Grey shale |
8 |
0 |
|
1291 |
0 |
| Grey post |
7 |
8 |
|
1298 |
8 |
| Grey shale |
22 |
7 |
|
1321 |
3 |
| COAL - Main Coal Seam |
4 |
10 |
|
1326 |
1 |
| COAL |
4 |
10 |
|
|
|
| Seggar-clay |
2 |
0 |
|
1328 |
1 |
| Black stone |
2 |
0 |
|
1330 |
1 |
| Grey post |
6 |
7 |
|
1336 |
8 |
| Grey shale, with post girdles |
10 |
0 |
|
1346 |
8 |
| Grey shale |
27 |
0 |
|
1373 |
8 |
| Hard grey post |
2 |
8 |
|
1376 |
4 |
| Grey post |
12 |
4 |
|
1388 |
8 |
| Grey post, with shale partings |
5 |
0 |
|
1393 |
8 |
| Grey post |
2 |
2 |
|
1395 |
10 |
| Grey shale |
3 |
0 |
|
1398 |
10 |
| COAL - Maudlin Seam |
4 |
0 |
|
1402 |
10 |
| COAL |
1 |
0 |
|
|
|
| Band |
0 |
4 |
|
|
|
| COAL |
2 |
8 |
|
|
|
| Seggar-clay |
5 |
6 |
|
1408 |
4 |
| Grey shale, with post girdles |
7 |
8 |
|
1416 |
0 |
| COAL - Brass Thill Seam |
2 |
9 |
|
1418 |
9 |
| COAL |
0 |
7 |
|
|
|
| Band |
0 |
3 |
|
|
|
| COAL, good |
1 |
2 |
|
|
|
| COAL, with brass |
0 |
9 |
|
|
|
| Seggar-clay |
6 |
0 |
|
1424 |
9 |
| Grey shale |
6 |
0 |
|
1430 |
9 |
| Grey shale, with ironstone girdles and post panel |
23 |
5 |
|
1454 |
2 |
| COAL - Low Main Seam |
4 |
2½ |
|
1458 |
4½ |
| COAL |
4 |
2½ |
|
|
|
| Seggar-clay |
3 |
11½ |
|
1462 |
4 |
| Grey shale, with ironstone girdles |
37 |
4 |
|
1499 |
8 |
| COAL, on north side only |
1 |
7 |
|
1501 |
3 |
| Seggar-clay |
4 |
0 |
|
1505 |
3 |
| Grey shale, with post girdles |
5 |
6 |
|
1510 |
9 |
| Grey shale |
1 |
3 |
|
1512 |
0 |
| COAL |
0 |
4 |
|
1512 |
4 |
| Grey shale |
6 |
8 |
|
1519 |
0 |
| COAL |
0 |
5½ |
|
1519 |
5½ |
| Grey shale |
3 |
3½ |
|
1522 |
9 |
| Grey shale, with post girdles |
4 |
4 |
|
1527 |
1 |
| Grey post |
27 |
10 |
|
1554 |
11 |
| Hard grey post |
12 |
2 |
|
1567 |
1 |
| COAL - Hutton Seam |
6 |
2¼ |
|
1573 |
3¼ |
| COAL, top |
0 |
2½ |
|
|
|
| Band |
0 |
0¾ |
|
|
|
| COAL, good |
4 |
6 |
|
|
|
| Band |
0 |
5 |
|
|
|
| COAL, bottom |
1 |
0 |
|
|
|
| Seggar-clay |
11 |
0 |
|
1584 |
3¼ |
| Grey post |
5 |
2¾ |
|
1589 |
6 |
| Grey shale |
10 |
4 |
|
1599 |
10 |
| Black shale |
2 |
0 |
|
1601 |
10 |
| Grey shale |
9 |
0 |
|
1610 |
10 |
| Black shale |
0 |
6 |
|
1611 |
4 |
| Ironstone girdle |
1 |
0 |
|
1612 |
4 |
| Seggar-clay |
6 |
6 |
|
1618 |
10 |
| Hard grey post |
13 |
0 |
|
1631 |
10 |
| Leafy post |
6 |
0 |
|
1637 |
10 |
| Grey post |
6 |
1 |
|
1643 |
11 |
| Black shale |
0 |
7½ |
|
1644 |
6½ |
| COAL |
0 |
6½ |
|
1645 |
1 |
| Seggar-clay |
3 |
1 |
|
1648 |
2 |
| Grey post |
2 |
8 |
|
1650 |
10 |
| Grey shale, into |
8 |
6 |
|
1659 |
4 |
|
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 2632 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"
main page for Dawdon Colliery
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