MESO-CENOZOIC INTRACONTINENTAL OROGENIC PROCESS IN THE BEIJING AREA——A Case Study Based on Geological Observations from the Ming Tombs to Badaling Mountain
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摘要: 著名的燕山山脉雄踞于华北平原之北,以其特有的地质构造闻名于世。它既是世界知名的中、新元古界层型剖面的所在地、中国最老陆壳的出露区,也是中外驰名的燕山运动的命名地。北京十三陵-龙庆峡-八达岭地质路线呈NW向横穿NE向延伸的太古宙变质杂岩、著名的中、新元古代经典剖面、中生代构造-岩浆活动带及新生代盆-岭构造系统。通过该剖面构造特征与地层系统的观察可概括了解燕山陆内(板内)造山带西段、北京地区的中、新生代陆内造山过程。Abstract: The magnificent Yanshan Mountains, famous for their unique structural features, lie north of the North China Plain. They are the place o f the world-renowned Meso-Neoproterozoic stratotype(formerly called the "Sini an System of Northern China" or the "Sinian Suberathem"), the area of the old est continental crust exposed in China, and the place from which the well-known Yanshanian Movement was named. The field trip route of the Ming Tombs-Longqing Gorge-Badaling extends in a NW direction across the NE-trending Archean metam orphic complex, famous Meso-Neoproterozoic stratotype, Mesozoic tectono-magmatic belt and Cenozoic basin-range system. Through observations of the tectonic features and stratigraphic system along the traverse, one can gain a general know ledge of the Meso-Cenozoic intracontinental orogenic process of the Beijing are a in the western segment of the Yanshanian intracontinental (intraplate) orogenic belt.
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Key words:
- Yanshan Mountains /
- Beijing area /
- Meso-Cenozoic /
- intracon tinental orogenic process
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