摘要
诺尔特地区位于北阿尔泰构造带的东部,西伯利亚板块西南缘。该区地球动力学背景的演化与北阿尔泰一致,其演化经历了基底陆壳、拉张型过渡壳、汇聚型过渡壳、新陆壳及新陆壳在中生代的发展等阶段。金、多金属成矿为燕山期南北挤压、构造活化动力学背景下的产物,与新陆壳在中生代的发展有关。
The Nurt area is located in the east of the northern Altay tectonic zone,at the southwest edge of the Siberia plate.Its geodynamic setting is consistent with that of northern Altay.The crustal evolution of the Nurt area includes old continental crust stage,transitional crust stage of extensional type,convergent stage,new continental crust stage and new continental crust stage developing in Mesozoic.The metallization of gold and multi-metal has to do with the new continental crust stage developing in Mesozoic in the Nurt area.At Yanshanian stage,the crust had tectonic activity again because the south plate moved toward the north plate and the metallization of gold and multi-metal occured in the period.
出处
《安徽地质》
2001年第2期150-154,共5页
Geology of Anhui
