ZHAO Rui,XU Mo,FAN Chenchen,et al.Discussion on the Characteristics of Karst Development and Influence Factors in Gulin-Xuyong Area of Southern Sichuan[J].Research of Soil and Water Conservation,2015,22(02):316-319,327.
川南古叙地区岩溶发育特征及影响因素探讨
- Title:
- Discussion on the Characteristics of Karst Development and Influence Factors in Gulin-Xuyong Area of Southern Sichuan
- Keywords:
- development characteristics of karst; influence factors; statisticalaAnalysis; Gulin-Xuyong area
- 分类号:
- P642.25
- 摘要:
- 四川盆地南缘古蔺—叙永一带岩溶发育具有鲜明的规律特征，多级水平溶洞说明研究区经历了几个不同的地质时期，代表了主要的水平溶蚀作用，相邻两层不同高程的溶洞之间则被垂向的溶洞、溶隙所串联，又反映了以垂向溶蚀作用为主的另一个时期，水平和垂向溶蚀的交替出现是本区岩溶的一个重要形式，同时以岩溶为介质的阶梯状管道流特征十分明显。文中统计了研究区内各岩溶类型的基本发育特征，总结了岩溶发育的高程分带以及岩溶管道流循环特征，探讨了该类岩溶模式除受到挽近构造运动作间歇性上升的影响外，河谷下蚀变迁以及地下水循环演化也是形成区内多级岩溶的因素之一，从而为人类工程活动提供一定的指导意义。
- Abstract:
- The karst development of Gulin-Xuyong area has distinct characteristics and regularities in southern margin of the Sichuan Basin, the multi-layer cuevas represent a time dominated by horizontal corrosion and indicate that the area had experienced different geological periods, the adjacent cave layers of different heights are linked by the vertical caves which also reflect another time predominated by vertical corrosion, and the alternative of horizontal and vertical karstification is an important form of the karst development process, characteristic of the ladder shaped pipe flow with taking karst medium is very obvious at the same time. In this paper, statistics of the basic development characteristics of various karst types in the study area was carried out. We summarized characteristics of development elevation zone and circulation characteristics of karst pipelines flow, and discussed such karst pattern in addition to the effects of intermittent rise of recent tectonic movement. River valley undercutting change and groundwater evolution are the factors of multistage karst formation in this area. These results can provide certain instructional significance for the human engineering activities.
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备注/Memo
收稿日期:2014-09-26;改回日期:2014-10-10。
作者简介:赵瑞(1985-),男,内蒙古呼和浩特人,博士研究生,研究方向:水文地质、环境地质。E-mail:375155702@qq.com
通讯作者:许模(1963-),男,重庆人,教授,长期从事水文、工程、环境地质教育研究工作。E-mail:xm@cdut.edu.cn