松江河鸳鸯湖第四纪沉积特征与构造演化
|
摘要
从第四纪沉积特征出发,利用岩石矿物成分和结构间的差别及玄武岩和砂砾石年龄之间的差异,结合长白山地区的大地构造环境,得出该区玄武岩后的冷凝环境和第四纪的沉积环境;并结合该区火山、地震的活动规律,对该区复杂的新构造运动进行了复原。即该区地壳在近20万年以来,不仅经历上升和稳定状态的多次交替,且地壳每次上升的幅度和速度各异,稳定时期持续的时间也有差异,这表明地壳活动度的脉动性。由此构造活动形成的地貌和河流阶地的类型极其复杂。
Through analyzing mineral constituent and fabric differences, age difference between basalts and gravels and geotectonic enviroment of Changbai Mountain Area, the freezing enviroment of basalts and Quaternary deposit enviroment are presented. Based on the complex volcanic and seismic activities, the geotectonic movements in this area are restored. In the last 0.2 Ma,this area had some lifting and stable states alternatively. The amplitudes and velocities are different. Each duration of stable state is different from others. It indicates the impulsiveness of crustal motion. The landform and stream terrance formed by above mentioned activities are extremely complex.
Through analyzing mineral constituent and fabric differences, age difference between basalts and gravels and geotectonic enviroment of Changbai Mountain Area, the freezing enviroment of basalts and Quaternary deposit enviroment are presented. Based on the complex volcanic and seismic activities, the geotectonic movements in this area are restored. In the last 0.2 Ma,this area had some lifting and stable states alternatively. The amplitudes and velocities are different. Each duration of stable state is different from others. It indicates the impulsiveness of crustal motion. The landform and stream terrance formed by above mentioned activities are extremely complex.
引文
[1] 谢宇平.第四纪地质学及地貌学[M].北京:地质出版社,1994:1-56． XIE Yu-ping.Quaternary geology and geomorphology[M].Beijing:Geological Publishing House,1994:1-56．
[2] 马文璞.区域构造解析-方法理论和中国扳块构造[M].北京:地质出版社,1992:286-287． MA Wen-pu.Analytic regional tectonic-methods theoryand Chinese plate tectonics[M].Beijing:Geological Pub-lishing House,1992:286-287．
[3] 谢宇平,刘祥,向天元.中国东北中部地区新生代火山及火山岩研究[M].长春:东北师范大学出版社,1993:1-96． XIE Yu-ping,LIU Xiang,XIANG Tian-yuan.Volcano ofCenozoic in center of Northeast China and volcanics study[M].Changchun:Northeast Normal University PublishingHouse,1993:1-96．
[4] 刘嘉麒.中国火山[M].北京:科学出版社,1991:21,24． LIU Jia-qi.Volcano of China[M].Beijing:Scientific Publi-shing House,1991:21,24．
[5] 邱家骧.岩浆岩岩石学[M].北京:地质出版社,1985:1-105． QIU Jia-xiang.Magmatic rocks petrology[M].Beijing:Geological Publishing House,1985:1-105．
[6] 陈丽华,缪昕,于众.扫描电镜在地质上的应用[M].北京:科学出版社,1986:1-16． CHEN Li-hua,MIAO Xin,YU Zhong.Stereoscan in geo-logy study[M].Beijing:Scientific Publishing House,1986:1-16
[2] 马文璞.区域构造解析-方法理论和中国扳块构造[M].北京:地质出版社,1992:286-287． MA Wen-pu.Analytic regional tectonic-methods theoryand Chinese plate tectonics[M].Beijing:Geological Pub-lishing House,1992:286-287．
[3] 谢宇平,刘祥,向天元.中国东北中部地区新生代火山及火山岩研究[M].长春:东北师范大学出版社,1993:1-96． XIE Yu-ping,LIU Xiang,XIANG Tian-yuan.Volcano ofCenozoic in center of Northeast China and volcanics study[M].Changchun:Northeast Normal University PublishingHouse,1993:1-96．
[4] 刘嘉麒.中国火山[M].北京:科学出版社,1991:21,24． LIU Jia-qi.Volcano of China[M].Beijing:Scientific Publi-shing House,1991:21,24．
[5] 邱家骧.岩浆岩岩石学[M].北京:地质出版社,1985:1-105． QIU Jia-xiang.Magmatic rocks petrology[M].Beijing:Geological Publishing House,1985:1-105．
[6] 陈丽华,缪昕,于众.扫描电镜在地质上的应用[M].北京:科学出版社,1986:1-16． CHEN Li-hua,MIAO Xin,YU Zhong.Stereoscan in geo-logy study[M].Beijing:Scientific Publishing House,1986:1-16
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心