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South Pit abbreviated shaft section

There is a difference of about 33ft. between measurements made in 1947 and the shaft section records for the 1922 deepening. The abandonment plans show the levels of the various insets in the South shaft and these correlate with the 1947 measurements. Although there are shaft records for the sinking of the North pit to the Top Hard seam, those for the South pit down to this level do not appear to have been preserved.

It seems that the discrepency arose because the shaft record for the North pit was used for the reference levels when deepening the South pit.

Just as with the North pit, the term “surface level” refers to the bottom deck running-on level (ROL) at bank height - perhaps 10ft above rock head. This is the survey height above Ordnance Datum (aod).

  • depths in black:     taken from shaft section book
  • depths in orange:   taken from 1947 measurements
  • depths in yellow:    taken from drainage plans
  • depths in white:     taken from mine abandonment plans
    		•
  • Surface:   508 ft above sea level / Ordnance Datum
  • ROL:         Bottom Deck 507.73ft; Top Deck 514.11ft (aod)

      • 1524ft:      Top Hard seam floor (extrapolated)

      ”pit bottom roadways at shaft side 16ft high” [4]

      1525ft:      Top Hard inset

      1526ft:       Top Hard bottom deck

      1560ft:      Top Hard bottom deck

      1590ft:      bottom of old brickwork

      1599ft:        coal   - 10in

    • 1609ft:        Dunsil seam and inset

      • 1609ft:       Dunsil seam floor

      1643ft:        coal + dirt + coal -  43in Dunsil

      1669ft:        coal   - 5in

      1641ft:       1st Waterloo inset

      1642ft:      1st Waterloo inset (extrapolated)

    • 1643ft:        1st Waterloo  inset

      • 1675ft:        coal   - 36in   1st Waterloo

      1695ft:        coal   - 4in   Waterloo marker

      *1704ft:       2nd Waterloo  seam floor

      1728ft:        coal   - 28in   2nd Waterloo

      1831ft:        coal   - 16in   3rd Waterloo

      1849ft:        coal   - 6in

      1886ft:        coal   - 14in   4th Waterloo

      1925ft:        coal +clunch+coal -  7in+27in+7in   1st Ell

      2086ft:        coal   - 14in

      2098ft:        coal   - 7in   ? Brown Rake

      2134ft:        coal   - 61/2in   Chavery

      2155ft:        coal + bat + coal  - 24in Sitwell

      2184ft:        coal -  5in   ? Roof Soft

      2210ft:        coal -  21/2in

      2218ft:        coal + dirt + coal -  38in Deep Soft (Top Coal ) 

      2242ft:        coal + bat + coal  - 61/2in

      2245ft:        coal -  9in Deep Soft (Bottom Coal )

      2248ft:       coal - 12in  (Deep Hard Roof Coal)

      2280ft:        coal -  12in   Deep Hard Roof Coal

      2273ft:       Deep Hard seam floor

    • 2290ft:        Deep Hard inset

      • 2292ft:       Deep Hard middle deck

    • Running on level:          Middle deck 2291ft        (1783.23ft bod)

      • 2305ft:        coal -  38in  Deep Hard 

      2345ft:        coal + dirt + coal -  34in   1st Piper (Upper Coal)

      2367ft:         “shaft filled to here at some point”

      2524ft:       black shale with cockle beds (10yd)

      2529ft:        coal -  54in     Tupton / Low Main

      2546ft:        coal -  33in     Three Quarter

      2553ft:        coal -  16in

      2637ft:         coal -  38in   Yard (inferior)

      2705ft:         coal -  411/2in Blackshale

    • 2697ft:        shaft bottom

      • 2703ft:         shaft bottom

      2711ft:         shaft bottom

     

    Sources:    

    1. G A Longden’s shaft section record sheets (FoPP archive)
    2. Book copy of shaft record sheets (FoPP archive)
    3. Mine water drainage plans  (FoPP archive)
    4. Mine abandonment plans (Coal Authority Records Office)
    5. Concealed coalfield of Yorkshire and Nottinghamshire (Mem. Geol. Survey 1951)
    6. The geology of the country around Chesterfield, Matlock and Mansfield, 1967 Smith E. et al

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    13 Dec, 2011

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    09:40:38 PM
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