Study on the Formation and Development of Xiaoyanwan Tiankeng in Xingwen World Geopark,Sichuan  

作　　者：SHU Cheng-qiang1,ZHANG Bin1,SHUI Wei2,JIANG Liang-qun1,LIU Lijun1,QIN Fa-chao1(1.Land and Resources College,China West Normal University,Nanchong 637002,China 2.Agricultural college,Sichuan Agricultural University,Ya’ an 625014,China) 

出　　处：《四川地质学报》2009年第S1期165-171,共7页Acta Geologica Sichuan

摘　　要：Chinese scholars Zhu xuewen put forward Tiankeng and defined it as a collapse feature which was diffe rent from the ordinary doline and developed in large-scale underground river channel.This paper analyzed the sasic conditions of Xiaoyanwan Tiankeng formation,such as sedimentary environment,climatic and hydrological conditions and so on;and deeply discussed the development course of Xiaoyanwan Tiankeng on this basis.The research result showed that Xiaoyanwan Tiankeng was completely accord with Tiankeng' definition,and was a well-developed and especially big Tiankeng in the maturation stages.Chinese scholars Zhu xuewen put forward Tiankeng and defined it as a collapse feature which was diffe rent from the ordinary doline and developed in large-scale underground river channel.This paper analyzed the sasic conditions of Xiaoyanwan Tiankeng formation,such as sedimentary environment,climatic and hydrological conditions and so on;and deeply discussed the development course of Xiaoyanwan Tiankeng on this basis.The research result showed that Xiaoyanwan Tiankeng was completely accord with Tiankeng' definition,and was a well-developed and especially big Tiankeng in the maturation stages.

关 键 词：Xiaoyanwan TIANKENG substantial CAVE RIVER FORMATION KARST 

分 类 号：P942[天文地球—自然地理学]