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:''This article covers deep pit, underground mining, for surface mining of coal in the UK see Open-pit coal mining in the United Kingdom'' Coal mining in the United Kingdom dates back to Roman times and occurred in many different parts of the country. Britain's coalfields are associated with Northumberland and Durham, North and South Wales, Yorkshire, Scotland, Lancashire, the East and West Midlands and Kent. During the 1980s and 1990s the industry was shrunk considerably. Almost all onshore coal resources in the UK occur in rocks of the Carboniferous age some of which extend under the North Sea. Bituminous coal makes is present in most of Britain’s coalfields and is 86% to 88% carbon. In Northern Ireland there are extensive deposits of lignite which is less energy-dense. There is now only one remaining deep coal mine (Kellingley Colliery), and 26 open cast mines in the UK. ==Extent and geology== The United Kingdom's onshore coal resources occur in rocks of the Carboniferous age some of which extend under the North Sea. The carbon content of the bituminous coal present in most of the coalfields is 86% to 88%. Britain's coalfields are associated with Northumberland and Durham, North and South Wales, Yorkshire, Scotland, Lancashire, the East and West Midlands and Kent. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Coal mining in the United Kingdom」の詳細全文を読む スポンサード リンク
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