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海南岛鹦歌岭白垩纪红盆中韧性剪切带的地质特征

Sun-xiong LI,Shi-jiang DING,Yuan FAN,Chang-yan L(U)

Journal of Geomechanics（2006）

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Abstract
鹦歌岭白垩纪红盆中的韧性剪切带由糜棱岩系列岩石组成,发育线理、面理和褶皱构造,具有拆离活动的运动学特征.变形差应力变化在27.2～66.2MPa之间,变形温度高于500℃.近垂直的挤压和近水平的伸展显示剪切带的形成与深部岩浆上侵作用有关,对进一步认识海南岛燕山期构造岩浆作用以及岩浆侵位机制具有重要的地质意义.
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Key words
Hainan Island,geological characteristics,Cretaceous red basin,ductile deformation
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