BASIN-RANGE SYSTEM EVOLUTION OF QINLING-DABIE OROGENIC BELT AND ITS IMPACT ON REGIONAL ENVIRONMENT

作者：HU Baoqing ZENG Qiaosong LIU Shunsheng WANG Shijie

摘要：As the structural body related to temporal-spatial evolution and tectonic dynamic system, the orogenic belt and basin are not only dependent on each other in space but also closely related with each other in terms of infrastructure, matter transference and dynamic mechanisms. By using apatite fission-track method, the authors firstly analyze the uplift and denudation ratios of the Qinling-Dabie orogenic belt, and by using tectonically deformed combination analysis and tectonic-thermal simulation the main geological occurrences are also illustrated. It is found that there must have had multi-phase differential uplift and denudation phenomena in the Qinling-Dabie orogenic belt during the Mesozoic-Cenozoic. Then, the regional evolution pattern of qualitative and quantitative denudation process is obtained during the post-orogenic period. On the basis of summarizing evolution process of the basin-range system in the Qinling-Dabie orogenic belt during the Mesozoic-Cenozoic and its effects on regional environment, the influence of evolution process on geomorphologic landscapes change, water system vicissitude, eco-environment succession and drainage basin system evolution is discussed.

發文機構：National Laboratory of Environmental Geochemistry Department of Geography

關鍵詞：ENVIRONMENTALeffectbasin-rangeSYSTEMEVOLUTIONtectonothermalEVOLUTIONQinling-DabieOROGENICBELTenvironmental effectbasin-range system evolutiontectonothermal evolutionQinling-Dabie orogenic belt

分類號： P542[天文地球—構造地質學][天文地球—地質學]P66[天文地球—地質學]