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Dean and Chapter Colliery
Dean Pit
Account of Strata sunk through in the Dean Pit, Dean and Chapter Colliery, Ferry Hill, 1904
Shaft Details
Sunk: 1904, Closed: 15 Jan 1966
Approximate surface level 131.06m above sea (Ordnance datum)
Switch to measurements in:
feet & inches, or fathoms, feet & inches


 

 

 

 

 
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| Geology encountered |
Thickness |
|
Depth |
| |
m. |
|
m. |
| Loamy clay and stones |
1.68 |
|
1.68 |
| Brown shale |
1.37 |
|
3.05 |
| Black shale |
0.46 |
|
3.51 |
| Grey metal |
2.64 |
|
6.15 |
| Brown metal |
0.30 |
|
6.45 |
| Blue metal |
8.86 |
|
15.32 |
| Black shale |
0.53 |
|
15.85 |
| Blue metal |
3.05 |
|
18.90 |
| Black shale |
0.18 |
|
19.07 |
| Blue metal |
0.56 |
|
19.63 |
| COAL - Three-Quarter Seam |
0.36 |
|
19.99 |
| Black shale |
0.18 |
|
20.17 |
| Blue metal |
5.26 |
|
25.42 |
| Whin panel |
0.25 |
|
25.68 |
| Blue metal |
0.25 |
|
25.93 |
| White post |
0.48 |
|
26.41 |
| Blue metal, with post girdles |
2.29 |
|
28.70 |
| COAL - Five-Quarter Seam |
1.60 |
|
30.30 |
| Soft seggar-clay |
0.08 |
|
30.38 |
| Grey metal, with post girdles |
6.81 |
|
37.18 |
| COAL |
0.13 |
|
37.31 |
| Grey metal, with post girdles |
10.97 |
|
48.28 |
| Strong grey post |
2.24 |
|
50.52 |
| COAL - Main Coal Seam |
1.55 |
|
52.07 |
| COAL |
0.36 |
|
|
| Band |
0.23 |
|
|
| COAL |
0.97 |
|
|
| Seggar-clay |
1.37 |
|
53.44 |
| Blue metal |
1.98 |
|
55.42 |
| Grey post |
5.18 |
|
60.60 |
| White post |
1.83 |
|
62.43 |
| Grey metal, with post girdles |
3.53 |
|
65.96 |
| Soft blue metal |
7.31 |
|
73.28 |
| Grey post |
0.30 |
|
73.58 |
| COAL |
0.53 |
|
74.11 |
| COAL |
0.13 |
|
|
| Seggar-clay |
0.13 |
|
|
| COAL |
0.28 |
|
|
| Black stone |
0.51 |
|
74.62 |
| Grey metal |
1.60 |
|
76.22 |
| COAL |
0.51 |
|
76.70 |
| Seggar-clay |
1.83 |
|
78.53 |
| Blue metal |
1.52 |
|
80.06 |
| COAL |
0.20 |
|
80.26 |
| Grey metal, with post girdles |
11.79 |
|
92.07 |
| COAL - Low Main Seam |
0.51 |
|
92.58 |
| Seggar-clay |
0.81 |
|
93.39 |
| Grey metal, with iron stone girdles |
10.36 |
|
103.75 |
| White post, with metal girdles |
4.67 |
|
108.43 |
| COAL |
0.46 |
|
108.89 |
| Grey metal, with post girdles |
2.06 |
|
110.94 |
| COAL |
0.25 |
|
111.20 |
| Soft seggar-clay |
0.20 |
|
111.40 |
| Hard dark grey post |
0.43 |
|
111.81 |
| Leafy grey post |
5.44 |
|
117.24 |
| Grey metal |
3.10 |
|
120.34 |
| Black stone |
0.05 |
|
120.39 |
| COAL |
0.66 |
|
121.08 |
| COAL |
0.10 |
|
|
| Dant |
0.08 |
|
|
| COAL |
0.15 |
|
|
| Band |
0.08 |
|
|
| COAL |
0.25 |
|
|
| White post |
0.23 |
|
121.31 |
| Leafy grey metal |
7.01 |
|
128.32 |
| COAL - Hutton Seam |
0.66 |
|
128.98 |
| Grey post |
4.11 |
|
133.09 |
| Grey metal, with post girdles |
2.13 |
|
135.22 |
| Black stone |
0.51 |
|
135.73 |
| Hard seggar-clay |
1.68 |
|
137.38 |
| Leafy blue metal |
1.22 |
|
138.60 |
| Hard grey post |
17.78 |
|
156.38 |
| Hard grey with patches of whin |
15.34 |
|
171.72 |
| Blue metal |
2.03 |
|
173.75 |
| Black stone, with coal |
2.36 |
|
176.12 |
| Seggar-clay |
1.37 |
|
177.49 |
| Grey post |
15.32 |
|
192.80 |
| Dark grey leafy post |
1.37 |
|
194.18 |
| Dark blue metal |
1.17 |
|
195.34 |
| COAL - Harvey Seam |
1.22 |
|
196.56 |
| Seggar-clay |
4.06 |
|
200.63 |
| Blue metal |
3.12 |
|
203.75 |
| Black stone |
1.57 |
|
205.33 |
| COAL |
0.18 |
|
205.50 |
| Blue metal |
2.79 |
|
208.30 |
| Grey post, with metal girdles |
7.72 |
|
216.02 |
| Black stone |
0.61 |
|
216.63 |
| COAL |
1.37 |
|
218.00 |
| COAL |
0.30 |
|
|
| Hard seggar-clay |
0.63 |
|
|
| COAL |
0.43 |
|
|
| Blue metal |
10.26 |
|
228.26 |
| Black band |
0.28 |
|
228.54 |
| COAL - Top Busty Seam |
0.89 |
|
229.43 |
| Very hard seggar-clay |
1.78 |
|
231.23 |
| Grey post |
1.17 |
|
232.40 |
| COAL - Bottom Busty Seam |
0.81 |
|
233.21 |
| Dant |
0.13 |
|
233.34 |
| Seggar-clay |
0.41 |
|
233.75 |
| Leafy white post |
12.65 |
|
246.40 |
| Blue and black shale |
2.67 |
|
249.06 |
| COAL |
0.43 |
|
249.49 |
| Grey post, with ironstone girdles |
5.23 |
|
254.73 |
| COAL |
0.28 |
|
255.01 |
| Black stone |
4.67 |
|
259.68 |
| COAL |
0.10 |
|
259.78 |
| Dark grey leafy post |
5.61 |
|
265.39 |
| Black stone |
0.76 |
|
266.16 |
| COAL - Brockwell Seam |
1.47 |
|
267.63 |
| COAL |
0.15 |
|
|
| COAL, splint |
0.15 |
|
|
| COAL |
1.17 |
|
|
| Hard seggar-clay, mixed with post |
0.61 |
|
268.24 |
| Grey post |
5.41 |
|
273.65 |
| Blue metal |
1.42 |
|
275.07 |
| Seggar-clay, mixed with blue metal |
8.48 |
|
283.55 |
|
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 2713 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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