摘要
通过野外地质考察,从沉积学和年代学入手,分析了灵山岛的沉积地层特征和锆石年龄。针对灵山岛所属关键地质构造位置,从地球动力学角度,探讨了早期华北板块和扬子板块的碰撞结合以及后期太平洋板块和菲律宾海板块对于欧亚板块相互作用影响的远程效应。指出灵山岛成因于构造作用和岩浆作用(岩浆喷出作用和岩浆侵入作用)的多重动力学过程及其作用,将其划归复合海岛成因的类型。研究灵山岛的成因特征与类型,对于分析周缘盆地的形成、沉积与油气成烃—成藏的作用具有重要意义。
The Lingshan Island was originally formed when the North China plate and the Yangtze plate collided.In the later stage,it has been under the influence of interaction between the Pacific plate and Philippine plate and their movement against the Eurasia.Based on the sedimentary features and zircon ages,from the viewpoint of geodynamics,it is revealed that the Lingshan Island was formed by multiple dynamic processes including tectonism and magmatism（both volcanism and intrusion）.The results are helpful to the understanding of formation,and sedimentation as well as hydrocarbon generation and accumulation in the adjacent basins.
出处
《海洋地质前沿》
2016年第3期33-40,共8页
Marine Geology Frontiers
基金
中央高校基本科研业务费专项资金(15CX06011A)
海洋保障地质工程专项(GZH201200510)
国家重点基础研究发展计(973计划)(2012CB956004)
国家自然科学基金(41106064)
