【摘要】 依据松辽盆地北部的深地震反射资料,研究火山岩与基地的作用关系。结合本区地壳结构和大地构造环境以及深部构造机制,分析壳幔作用与岩浆活动之间的关系。认为本区火山岩是形成于俯冲,裂谷,幔隆等复杂环境的叠加,其结果表现为构造环境南北挤压,东西俯冲,幔隆壳薄,基地火山岩广泛分布的特点。更多还原

【Abstract】 To study react relationship of volcanic with basement,according deep reflect seismic data in north Songliao basin.Combine with crust structures and tectonic environment in the area,and abyssal structural mechanism,analysis the relation between crust-mantle reaction with magmatic activity,recognized that formation of the volcanic in this area is the complex superimposed of thrust,rift and mantle uplift,and results exhibited characteristic of north-south compress in structure environment,east-west thrust,crust uplift and mantle thin,and wide volcanic range.更多还原