Photographs - Copyright Stuart Tomlins


Clipstone

Mansfield, Nottinghamshire.

 

 

Background

In 1922 the shafts of Clipstone Colliery were sunk to exploit the Top Hard seam. In the 1950s the shafts were deepened to their current 920m depth to provide access to other seams.

After being closed by British Coal in 1993, the colliery was reopened under the control of RJB Mining in April 1994.

In the past the mine worked the Top Hard seam and the High Hazles seam.
The most recently worked seams are the Yard, at an approximate depth of 870m, and the Deep soft, at an approximate depth of 760m.

The IMC report of 1998 tells us that the current licence held by RJB Mining applies only to the Yard seam. This seam thickness varies from 1.1m - 1.3m and has a sulphur content of 2.0% and a chlorine content of 4.0%
The reserves of this seam lay within a block, the boundaries of which are defined by geological conditions to the north, and by abandoned mineworkings and surface constraints to the west and south.

The Blackshale seam, laying approximately 11m below has not been mined, nor is it likely to be due to it's high dirt content.

This table shows the information of the General Section at Clipstone Colliery:

 

 
STRATA
Section
cm
Interval
metres
Depth
metres
SURFACE
     
BASE OF PERMIAN
 
170
170
High Main Seam
61
173
343
Mansfield Marine Band
NA
56
399
Clowne Seam
61
44
443
Main Bright Seam
23
16
459
High Hazles Seam
117
61
520
Top Hard Seam
183
63
583
Dunsil Seam
97
15
598
Clay Cross Marine Band
NA
113
711
Deep Soft Seam
107
52
763
Deep Hard Seam
36
12
775
Low Main Seam
175
60
835
Threequarter Seam
43
13
848
Yard Seam
158
25
873
Blackshale Seam
122
11
884

 

The Present and Future

The IMC report, compiled in 1998, states that the Yard seam is expected to be exhausted shortly after completion of the then present five year plan.
The report goes on to state that Clipstone has no prospects beyond those identified in the five year plan, it's future being dictated by it's ability to remain cash positive.

The final comments on the future prospects of Clipstone Colliery in the IMC report tells us that if all faces work as planned and there is no significant deterioration in seam thickness and quality which could shorten the remaining life of the mine, then the colliery will cease production in June 2003.

Clipstone Colliery

 

 

Ayle - Betws - Blenkinsopp - Clipstone - Daw Mill - Ellington - Gleision - Harworth - Hatfield Main - Hay Royds
Hill Top - Kellingley - Longannet - Monument - Maltby -Phoenix and Hopewell - Prince of Wales - Rossington
The Free Miners - The Selby Complex - Thoresby -Thorne - Tower - Welbeck - The Nottingham Coalfield
Mining 2000 Conclusions