An Interesting Paper.

[John]

The concealed coalfield of Yorkshire and Nottinghamshire

Long and does have a fair amount of errors in it, like calling the Deep Hard seam the Parkgate seam. The Parkgate is lower than the Deep hard and one of it's other names is the Piper seam. It was worked at several Nottinghamshire pits. Seams in the lower measures were, Deep Soft, Deep Hard, No1 Piper, No2 Piper, probably one seam in south Notts, Tupton, (also known as "Furnace" or Low Main), Ashgate then Blackshale. There are a few more lower, but not heard of anyone working them or even know how thick they were. Jeeze, the Blackshale at Cotgrave is well over 1000 yards deep!

Whoops!! The link! www.archive.org/stream/cu31924004549956/cu31924004549956_djvu.txt

[erichall]

Re -The Concealed Coal seams of Yorks and Notts.

Classification of and naming of the various coal seams in Yorks and Notts always provides discussion since one could work at neighbouring Collieries and find the names of the seams varying from pit to pit, even though the seams were the same.
I worked in the S.Barnsley Area where the workable seams in ascending order were:
Silkstone, Parkgate, Flockton, Fenton (Low and Top if it split into two), Lidgett, and Swallow Wood
I then moved 25 miles into the N.Derbyshire area which was bounded by the S.Barnsley and N.Notts areas. Here I came across the following:
Blackshale, Deep soft, Deep Hard, Piper, Clowne and Two Foot Seams.
Seam names often varied locally, and with the varying thicknesses of the seams were worked in some collieries but not others, their names often being changed for commercial reasons.

[John]

I think the Blackshale seam is called that name throughout the Nottinghamshire coalfield Eric. The Clowne seems to be standard along the collieries along the Notts/Derbyshire border but changes in name further east.