兴文侵蚀型天坑的形成演化过程研究  

Research on Formational and Evolutional Processes of Xingwen's Erosive Karst Tiankeng

作　　者：税伟[1] 王兴贵 张斌[3] 舒成强[3] 魏雅丽[4] 李铁松[3] 张启春[3] 程金屏[4] 

机构地区：[1]四川农业大学生态农业与区域发展系,四川雅安625014 [2]康定民族师范专科学校环境与生命科学系,四川康定626001 [3]西华师范大学国土资源学院,四川南充637009 [4]四川农业大学资源环境学院,四川雅安625014

出　　处：《四川地质学报》2009年第S1期11-16,共6页Acta Geologica Sichuan

摘　　要：通过对兴文世界地质公园的实地考察研究,发现兴文喀斯特天坑除了大小岩湾等塌陷型天坑外,在僰王山景区内还有飞雾洞、道洞、沧水岩峡谷、楠星天坑等喀斯特地貌。它们可以作为兴文地质公园内喀斯特侵蚀型天坑的形成遗迹,它们分别代表了兴文喀斯特侵蚀型天坑的侵蚀演化过程,即竖井状落水洞阶段逐步溶蚀、侵蚀到天坑形成,到最后退化成大型峡谷或者大型漏斗。这些特殊的侵蚀型喀斯特地形的形成除了以流水侵蚀作用为主外,同时塌陷也起着十分重要的作用。According to the first-hand investigation and study on Xingwen Global Geopark,the results and the data show that apart from Dayanwan and Xiaoyanwan collapsed karst Tiankeng,there are other karst landforms in Bowang Mount scenic spot such us Feiwu Cave,Dao Cave,Cangshuiyan Gorge,Nanxing TanKeng and so on.These typical karst landforms could be regarded as different vestiges of erosive karst Tiankeng of Xingwen Global Geopark,which stand for the evolutional processes of erosive karst Tiankeng separately.Moreover,the evolutional processes of erosive karst Tiankeng could be divided into the following continuous processes:an erosive karst Tiankeng develops from the processes of eroding and dissolving & extending of silo Sinkhole,and subsequently degrades to a large gorge or doline.It is worth pointing out that except for erosion of flowing water,at the same time,collapse's effect has been playing extremely important role in the forming processes of these special erosive landforms.

关 键 词：侵蚀 演化 天坑 兴文 

分 类 号：P931.5[天文地球—自然地理学]