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综合分析了南海南部海域近5万千米的综合地球物理剖面资料和相关的地质资料。从宏观上,在南沙微板块内初次划分出了南沙超壳层块、曾母壳体层块、南薇-安渡壳体层块、礼乐-北巴拉望壳体层块、安渡-毕生基底层块、礼乐-半月基底层块等不同级别的层块构造。讨论了它们的基本特征。提出了层块构造的“立交传输运动”概念。根据多元动力成因观,探讨了各级层块构造的形成机制和主导动力,指出了俯冲板片拆沉-幔隆力、地幔流牵引力、地球转速变化惯性力、区域板块边界力等是驱动超壳层块的主要动力,重力失稳-壳内流塑层隆升-牵引力是驱动壳体层块和基底层块的主要动力。
The comprehensive geophysical profile data and related geological data of nearly 50,000 km in the southern South China Sea are comprehensively analyzed. From a macro perspective, the Nansha super-crust, the former parent crust, the Nanwei-Andu crust, the Rittal-North Palawan crust, Basement block, ritual - the moon base block and other different levels of block structure. Discussed their basic characteristics. The concept of “interchange” is proposed. According to the genesis of multivariate motivation, the forming mechanism and driving force of the block structures at all levels are discussed. It is pointed out that the subsidence slab delamination-mantle drag force, the mantle flow traction force, the inertial force of the Earth’s rotation speed, The main motive force of the crust block is gravity instability - the uplifting of the plastic in the crust - the traction force is the main force driving the crust and basement blocks.