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Recent Activities of Faults in Jiaodong Peninsula, Shandong Province, China
Author(s): Huang Yonghua, You Huichuan, Song Yisheng, Guo Yugui, Huan Wenlin
Pages: 39-
49
Year: 2007
Issue:
1
Journal: TECHNOLOGY FOR EARTHQUAKE DISASTER PREVENTION
Keyword: 断裂; 活动性; 山东; 胶东半岛;
Abstract: 山东胶东半岛地区发育有北北东-北东向和北西西向两组断裂,前者分属蓬莱-栖霞断裂系和即墨-牟平断裂带,为半岛的主体断裂构造;后者分布在半岛北缘及其北侧海域,由多条断裂组成.实地调查表明,断层在第四纪期间是活动的,控制着附近山地和盆地的构造演化与地貌发育,最新活动主要发生在第四纪早期,垂直活动幅度可达百米以上;第四纪晚期,断裂活动性迅速减弱,甚至停止,但依然发现北北东-北东向断裂的多个局部段落还在活动,明显地错断了晚更新世地层,垂直断距最大为10m左右.
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