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Gothian orogeny : ウィキペディア英語版 | Gothian orogeny The Gothian orogeny ((スウェーデン語:Gotiska orogenesen)) or Kongsberg orogeny was an orogeny in western Fennoscandia that occurred between 1750 and 1500 millions years ago. It precedes the younger Sveconorwegian orogeny that has overprinted much it.〔Lundqvist ''et al.'', p. 194〕 The Gothian orogeny formed along a subduction zone and resulted in the formation of calc-alkaline igneous rocks 1700 to 1550 million years ago, including some of the younger members of the Transscandinavian Igneous Belt.〔Lundqvist ''et al.'', p. 208〕 The defomration associated with the orogeny can be seen in metatonalite, paragneiss and biotite orthogneisses in southeast Norway. These rocks were all subject to amphibolite facies metamorphism. ==References== Cited book *
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「Gothian orogeny」の詳細全文を読む
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