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 from closure plans)

”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 from closure plans)

• 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