Yanshan Movement in Southern Henan Province

• 责任者：Zhang Ruisheng (No.1 Geological Exploration Institute ; Henan Provincial Bureau of Geo-Exploration and Mineral Development ; Nanyang 473000 ; China) ; Xu Weiguo
• 刊名：Geology and Mineral Resources of South China
• 出版年：2010
• 卷期：sum.104(2)
• 关键词：燕山运动 ; Yanshan Movement ; 河南 ; Henan Province
• 页码：p.53-59,65
• 图表：9 illus., 2 tables, 13 refs.
• 分类号：0300
• issnNo：ISSN1007-3701
• isbnNo：CN42-1417/P

///Yanshan movement is a strong and significant tectonic event which makes a series of fault depression and accumulating huge quasi-molasse deposit in them, a lot of fold and faults, large amount of magma intrusion and eruption, and abundant mineral resources formation in southern Henan Province. Yanshan movement can be subdivided into two periods and five episodes,  earlier period contains Ⅰand Ⅱepisode,  later period contains Ⅲ,  Ⅳ and Ⅴ episode. Each episode has its own character. Small scale magma intrusion and uplift happened in Ⅰand Ⅱepisodes in Dabie Mountain area. Large scale volcanic activity and locally magma intrusion are happened in Ⅲ episode,  while lots of fault and magma intrusion associated by important mineral resources formed in Ⅳ eposide. In the Ⅴ episode,  the development of basin comes to subsidence stage from fault depression,  which makes widespread unconformity or disconformity between Cretaceous and Triassic. The interacting between Pacific plate and Eurasian plate and the pushing of Indian plate against China continent make eastern China at a mainly compressional and locally extensional tectonic stress field in Yanshanian.