摘要
不同的大地构造单元或者同一单元的不同大地构造发展阶段,都有不同的地球化学特征.利用元素地球化学分散模式的变化规律,可以有效地揭示区域地质构造总轮廓. 新疆西准噶尔地区位于西伯利亚板块与准噶尔板块的碰撞带.本文利用新取得的区域化探扫面资料,来初步探讨该区板块构造的区域地球化学特征.多元素区域背景与多元素区域异常的研究结果清楚地表明,深大断裂和板块缝合线具有明显的区域地球化学特征,为今后研究板块构造提供了有意义的素材.
Making full use of the data obtained from the regional geochemical reconnaissance of 1:200000 scale in studying and resolving basic geological problems is one of the main tasks lying ahead of exploration geochemists at the time being.Different tectonic units and different tectonic evolution stages in each tectonic unit have different geochemical characteristics. Therefore, the regional tectonic reamework in an area can be revealed effectively by the changement tendency of the element geochemical disperson patterns.Western Zhunge'er of Xinjiang lies at the collision belt between Siberia and Zhunge'er plate. In this paper, preliminary discussions on the regional geochemical features of the plate tectonics have been carried out according to the recently obtained regional geochemical reconnaissance in this area.The results of the research on multi-element regional backgrounds and anomalies distinctly revealed the basic features of the plate tectonics and the regional geochemical characteristics of deep fault and suture line. Our researches provided some significant information of the further study of the plate tectonics.
关键词
板块构造
地球化学
新疆
西准噶尔
regional geochemical, tectonic geochemistry, suture line, western Zhunge'er
