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通过对断面域兴安地块、松嫩地块不同时期地层细碎屑岩化学组成的研究,揭示了其不同时期化学组成的阶段性变化,从而建立了兴安地块,松嫩地块的区域地球化学界面和构造地球化学层。该两地块在区域地球化学界面和构造地球化学层上的差异,反映了两地块的独立演化历史。通过对不同构造地球化学层内火山岩及碎屑岩的构造环境分析,结合嫩江和牡丹江两条缝合带的研究,揭示了断面域的构造演化历程。
By studying the chemical composition of the fine clastic rocks in the Xing’an block and the Songnen block in different periods, the periodic variations of the chemical compositions in different periods are revealed, and the regional earth of the Xingan block and the Songnen block are established Chemical interface and tectono-geochemical layer. The difference between the regional geochemical interfaces and the tectono-geochemical layers of the two blocks reflects the independent evolution history of the two blocks. Based on the analysis of the tectonic environment of volcanic rocks and clastic rocks in different tectono-geochemical layers and the study of two suture zones in Nenjiang and Mudanjiang, the tectonic evolution of the cross-section was revealed.