桩海地区断裂特征及断裂演化模式

Special Oil & Gas Reservoirs(2010)

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Abstract
通过精细构造解释,在桩海地区识别出北西向、近南北向、北东向和北东东向4组断裂带,垂向上发育深、中、浅3套断裂系统:底部中古生界北北西向逆断裂系统,中部孔店组—沙二段在逆断层前锋位置发育北北东或近南北向正断层,浅部新近系东西向断层下降盘发育大量北东东向断层。构造演化研究认为,桩海地区经历了5次大规模构造运动,断裂演化可以分为8个阶段。
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Key words
fault system,tectonic movement,fault characteristics,Zhuanghai area,fracture evolution
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