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Geological structure of Great Britain : ウィキペディア英語版 | Geological structure of Great Britain The geological structure of Great Britain is complex, resulting as it does from a long and varied geological history spanning more than two billion years. This piece of the Earth's crust has experienced several episodes of mountain building or 'orogenies', each of which has added further complexity to the picture. A wide range of geological structures occur across Britain and include examples at a variety of scales of: *faults *thrust faults *folds *sedimentary basins *grabens ''and'' horsts *unconformities Our understanding of Britain's large-scale structure has been gained over many decades by simple geological field survey together with an increasing range of technological methods including gravity surveys, seismic surveys, aeromagnetic surveys and other forms of remote sensing. ==Terranes== A useful approach to considering Britain's geological structure is to examine the various terranes from which it is composed. These are essentially continental fragments whose boundaries are generally defined by faults. Individual terranes typically contain suites of structures, the histories and form of which differ from those of neighbouring terranes.
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「Geological structure of Great Britain」の詳細全文を読む
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