North (? Nightingale) Pit  abbreviated shaft section

The term “surface level” refers to the bottom deck running-on level (ROL)  at pit bank height and is about 15ft above rock head.  This is the survey height above Ordnance Datum (aod).

• depths in black:           taken from shaft section records

• depths in white:           taken from abandonment plans

• depths in yellow:          taken from drainage plans

• comments in blue:        taken from shaft section records

• comments in purple     taken from shaft section records

• comments in brown:     taken from shaft filling specification

 

• Surface:                  514.16 ft above  sea level

• Running on level:   Bottom deck 514.16ft;  Top deck 520.58ft (aod)

90ft:          soft and hard beds of blue limestone

                  “350galls of water per min.”

151ft:        hard mingled rock:    [Basal Permian Breccia] [5]                                “top of  Lower Permian Marls” [2]

                   “450gall per min.”

247ft:        “base of Permian unconformable on Middle Coal Msrs” [2]

286ft:        coal   -  6in

303ft:        coal  -  1.5in

325ft:        coal  -  14in

330ft:        grey sandstone rock 10ft.

                 “the water inflow overwhelmed the 15 inch sinking pumps.”

338ft:        grey sandstone rock 10ft

                  “650gall per minute.”

348ft:        grey sandstone rock 10ft;   s/stone rock (with water) 20in.

                  “heavy feeder of water from a 1.5ft square fissure, 800gall/min.”

358ft:        sandstone rock 7ft.

                 “35gall per min.”

362ft:       rock 4in.

                 “25gall per min.”

410ft:        grey rock 12in.

                 “3in fissure running E-W filled with quartz. 5gall per min.”

        421ft:        coal  -  14in

        436ft:        pale bind with stone 3ft.

                  “1/2gall per min.”

451ft:        coal - 24in  underlain by 17in of fireclay:    [High Main]

                ”identified by re-survey in 1947” [2]

457ft:        coal  -  6in

463ft:        coal  -  8in

512ft:        coal  -  8in

547ft:        coal  -  31/2in

576ft:        coal  -  11in

579ft:        coal + clunch + coal + batt + coal -  64in:   [Wales]

                “seam found Feb 1st  1876 lying level” [1] 

581ft:        coal  -  6in

655ft:        black cank  14in

                 [Mansfield Marine Band (inferred)]  [6]

656ft:        coal  -  6in

~700ft:        old water lodge [5]

746ft:        coal  -  5in  on top of 60in saddle back. Inferior coal 14in

839ft:        coal  -  3in

863ft:        coal  -  2in

888ft:        [Clowne Marine Band] [6]

                  “dark bind with thicker beds of ironstone & cockle shells” [1]

894ft:         coal  -  29in:    [Clowne]

916ft:         coal  -  2in

960ft:         batt + coal + clunch  (repeated  6 times) -  96in:   [Mainbright]

1010ft:       coal  -  9in

1214ft:       coal  -  23in @ 1 in 56  NE60^o: [High Hazels]

                “found and sampled approx. June 1946 - FE” [2]

1302ft:       coal  -  20in @ 1 in 24  N  [1st St. Johns Coal]

1344ft:       coal  -  10in      [2nd St. Johns Coal]

1464ft:       coal  -  81/2in

1511ft:       coal + batts  -  7in @ 1 in 20  E

1548ft:       coal  -  66in:    [Top Hard]

                 “seam reached Feb 15th. 1877” [1]  

1560 ft:      Top Hard inset

• Running on level:     Bottom deck 1559ft    (1045.38ft bod)

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

1575ft:       bottom of shaft (1877) [1]

~1610ft:        old sump drift [5]

• 1697 ft:      2nd Waterloo inset

1773ft:       bottom of shaft (1950)

• 1773ft:       shaft bottom

 

References:    

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