中国气候和构造运动对花岗岩地貌的影响(英文)

编号 zgly0001586062

文献类型 期刊论文

文献题名 中国气候和构造运动对花岗岩地貌的影响(英文)

作者 陈艺鑫  崔之久  杨建强 

作者单位 CollegeofUrbanandEnvironmentalSciences  PekingUniversity  InstituteofTibetanPlateauResearch  CAS 

母体文献 Journal of Geographical Sciences 

年卷期 2009年05期

年份 2009 

分类号 P931 

关键词 granitelandform  weathering  planationsurface  climate  uplift  China 

文摘内容 Present granite landform characteristics and distribution are the integrated result of climate, tectonics and lithology. Various types of granite landforms in China signify climate zonality and differential vertical movement of earth surface, while published research results on Chinese granite landforms are very rare, especially in international journals. Based on the process analysis of chemical weathering and physical disintegration, four granite landform regions in China are classified according to the present climate regime. On the Tibetan Plateau, the cold and freezing climate induced periglacial landscapes; the northeast region is characterized by physical disintegration and low round mounds are widespread; in the northwest region controlled by arid climate, wind-carved minor landscapes are extremely prominent. The most spectacular granite landscapes in China are presented in southeast as a result of longtime chemical weathering under humid and warm conditions, as well as the differential uplift after Neogene. Correlating the weathering crust in southern China, Tibetan Plateau and India, a possible unified planation surface in Neogene is proposed. With corestones as indicators of original weathering front, the differential uplift extent of dissected planation surfaces can be estimated. At least three landforms implying uplift can be identified in southeastern China, with elevations of 300–400 m, 2000 m and 3600 m above the sea level respectively.