The distribution and status of heather in England and Wales

[摘要] This report describes the geology, mineral resources and geotechnical aspects of the Workington and Maryport area of Cumbria (Sheets NY02NW, 03NW,SW, NX92NE,SE). Lower, Middle and Upper Coal Measures (Westphalian A, B and C), which crop out over most of the district, are of fluvial facies, 500 m thick, with some 19 workable coals. Quaternary sediments which are commonly up to 30 m thick conceal much of the solid rocks. Coal has been mined extensively, but resources remain which could be worked opencast. Geotechnical problems result from subsidence over coal workings and shafts, many of which are inadequately documented. Weak clays, silts and peat in the Quaternary sequence may also cause foundation difficulties.

[发布机构] NERC/Institute of Terrestrial Ecology

[效力级别] Ecology and Environment