Seatearth is a British coal mining term that is used in the geological literature. As noted by Jackson,[1] a seatearth is the layer of sedimentary rock underlying a coal seam. Seatearths have also been called seat earth, "seat rock", or "seat stone" in the geologic literature. Depending on its physical characteristics, a number of different names, such as underclay, fireclay, flint clay, and ganister, can be applied to a specific seatearth.
^Jackson, J.A., 1997, Glossary of geology, 4th ed. American Geological Institute, Alexandria. ISBN 0-922152-34-9
Seatearth is a British coal mining term that is used in the geological literature. As noted by Jackson, a seatearth is the layer of sedimentary rock underlying...
some fire clays (especially flint clays) are mined at depth, found as a seatearth, the underclay associated with coal measures. "Calciners and Dryers in...
found as seatearths within English Carboniferous coal measures. This term is now used for similar quartzose sandstones found typically as seatearths in the...
Mynyddislwyn Seam east of the Taff valley), where it overlies mudstone seatearth at the top of the predominantly arenaceous Swansea Member in the Swansea...
to 1600m Lithology Primary mudstone, sandstone Other siltstone, coal, seatearth Location Region South Wales, southern England Extent across south Wales...
locations. The layer immediately underlying coal seams, often called either "seatearth" or "underclay", typically either consists of or contains a paleosol....
Billingley Seam. Swinton Pottery Seam A poor quality coal; however the seatearth underlying the coal was used for brick making. Newhill Seam A household...
(Clackmannan Group) Thickness up to 940 m Lithology Primary mudstone, sandstone Other siltstone, coal, seatearth Location Region Scotland Extent Midland Valley...
southwest to Knowbury and northeast beneath Catherton Common. It contains seatearths and coal seams which have been worked in the past. The lowermost and most...
to 1600m Lithology Primary mudstone, sandstone Other siltstone, coal, seatearth Location Region northern England, English Midlands, north Wales Extent...
Coal Group 45, at the Lower Cove of the Joggins Cliffs, and consists of seatearth, red shale, and sandstone. The roof of the division lies just above Coal...
Mynyddislwyn Seam east of the Taff valley), where it overlies mudstone seatearth at the top of the predominantly arenaceous Swansea Member in the Swansea...
approximating to the Brithdir coal seam and associated mudstones and seatearths. The Black Mountains and nearby lesser hills formed from the Old Red Sandstone...
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