Coal seams of the South Yorkshire Coalfield
list of coal seams in the South Yorkshire Coalfield, England
The coal seams worked in the South Yorkshire Coalfield lie mainly in the middle coal measures within what is now formally referred to as the Pennine Coal Measures Group. These are a series of mudstones, shales, sandstones, and coal seams laid down towards the end of the Carboniferous period between about 320 and 300 million years ago. The total depth of the strata is about 1.2 kilometres (0.75 mi).
The list of coal seams that follows starts at the shallowest seam and proceeds downwards with the outcrops occurring progressively further west until the deepest coal seam, the Silkstone Seam which outcropped at the western edge of the coalfield.
The thicknesses and depths of each seam are not given as they vary across the coalfield.
Seams
Sources
Hill, Alan (2001). The South Yorkshire Coalfield A History & Development. Tempus.
Geology of the Country around Barnsley. Her Majesty's Stationery Office.
“Coal seams of the South Yorkshire Coalfield” enters the record as list of coal seams in the South Yorkshire Coalfield, England. Crown Archives preserves that source wording while asking what Coal, seams and South can confirm, complicate or overturn.
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This entry incorporates text from “Coal seams of the South Yorkshire Coalfield” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.