摘要
亚洲大陆中、北部环绕西伯利亚地块南侧广泛发育中新生代指向南的弧形构造体系,呈现具有成因联系的有规律的成带分布,显然它们已不属于该区域先期古生代的古亚洲构造,而是与中新生代同期的西太平洋洋陆俯冲构造体系和环青藏及喜马拉雅碰撞隆升构造体系相鼎立的亚洲独立的另一构造体系,可简称为中新生代环西伯利亚陆内构造体系域。无疑,它是在古亚洲构造基础上,经叠加复合而新生的中新生代陆内构造系统。提出并强调将其与古亚洲构造加以区分是十分必要的。这对于中国和亚洲大陆构造与大陆动力学研究具有重要意义。
Meso-Cenozoic south-vergent arcuate structures are well developed along the southern margin of the Siberian block in the northern and central Asian continent.They are distributed in genetically related belts.It is evident that they do not belong to the pre-existing Paleozoic Paleo-Asian tectonic system in the region but constitutes another tectonic system in Asia,called the Meso-Cenozoic circum-Siberian in-tracontinental tectonic system,which is independent of the other two tectonic systems in Asia:the con-temporaneous Meso-Cenozoic Western Pacific oceanic crustal subduction tectonic system and the circum-Qinghai-Tibet Plateau and Himalayan collision-uplift tectonic system.It is undoubtedly a newborn Meso-Cenozoic intracontinental tectonic system formed by superimposition and compounding.The authors empha-size that it is very necessary to distinguish them from the Paleo-Asian structures,which is of great signifi-cance for the study of the continental tectonics and dynamics of China and Asia.
出处
《地质通报》
CAS
CSCD
北大核心
2002年第4期198-201,共4页
Geological Bulletin of China
基金
国家自然科学基金项目(49732080)资助。