References for supplementary Data files
AKHURST, M.C., CHADWICK, R.A., HOLLIDAY, D.W., MCCORMAC, M., MCMILLAN, A.A., MILLWARD, D. &YOUNG, B. 1997. Geology of the West Cumbria district, sheets 28, 37, 47. Memoir of British Geological Survey, HMSO, London.
BARCLAY, W.J., TAYLOR, K. & THOMAS, L.P. 1988. Geology of the South Wales Coalfield, Part V, the country around Methyr Tydfil, sheet 231. 3rd edit. Memoir of British Geological Survey, HMSO, London
EASTWOOD T., DIXON E. E. L., HOLLINGWORTH S. E. & SMITH B. 1931. Geology of Whitehaven and Workington District, Explanation of Sheet 28. Memoir of The Geological Survey, HMSO, London
GLUYAS, J.G. & CADE, C.A. 1997. Sand compaction. In: KUPECZ, J., GLUYAS, J.G. & BLOCH, S. (eds). Reservoir quality and prediction in sandstones and carbonates. AAPG Memoir 69, 19-27. 
Hambun R.J.O. & Coppack B.C. 1995. Geology of Telford and the Coalbrookdale Coalfield, for parts of sheets 152, 153 & sj60, with parts of 61, 70 & 71. Memoir of British Geological Survey, HMSO, London.
MILLS, D. A. C. & HULL, J .H. 1976. Geology of the country around Barnard Castle, explanation of 1-inch geological sheet 32. Institute of Geological Sciences, HMSO. London
NADON, G. C. 1998. Magnitude and timing of peat-to-coal compaction. Geology, 26, 727-730.
NADON, G. C. 1998. Magnitude and timing of peat-to-coal compaction. Geology, 26, 727-730.
WINSTON, R. B. 1986.  Characteristic features and compaction of plant tissues traced from permineralized peat to coal in Pennsylvanian coals (Desmoinsian) from the Illinois Basin.  International Journal of Coal Geology 6, 21-41.
WOODLAND, A.W. & EVANS, W.B. 1964. Geology of the South Wales Coalfield. Part 4. The Country around Pontypridd and Maesteg. Memoir of the Geological Survey of Great Britain., London.. 
WORSSAM, B.C. & OLD, R.A. 1988. Geology of the country around Coalville, sheet 155. Memoir of British Geological Survey, HMSO, London.