摘要
云南牛栏江德泽-李子箐段岩溶发育,主要类型为岩溶塌陷和溶洞(暗河)。在研究区内现有地质资料及调查成果的基础上,总结了研究区岩溶发育的基本特征:空间上分布广、密度大,个体规模大,各类岩溶类型相互连通。系统地分析了研究区岩溶作用的成因,主要为:①区内的降雨量较大,为岩溶的发育提供了丰富的水源;②研究区西北部的车乌-鲁冲大断裂,控制着区内总体构造形态,并造成了北东向与南东向等多组节理裂隙的发育,为岩溶水的流通创造了条件;③广泛分布的可溶性岩石,为岩溶的发育提供了物质条件,有利于岩溶作用的发生。
Karst in the Deze-Liziqing sector of the Niulanjiang River,Yunnan is well developed,mainly karst collapses and caves（underground rivers）.Based on the study area geological data available and investigation results have summed up basic characters of karstic development： spatially widespread,dense,large individual in scope,and interconnected different types of karst.Systematically analyzed karst genesis in study area,mainly ① heavy rainfall in the area,provide karstification with abundant water source;② the Chewu-Luchong major fault in the northwestern part of study area controls general structural form,and causing development of NE,SE multiple sets of joint openings,provide conditions for karst water circulation;③ wide distribution of dissoluble rocks provides material prerequisites,and in favor of karst generation.
出处
《中国煤炭地质》
2011年第10期39-42,共4页
Coal Geology of China
关键词
碳酸盐岩地区
岩溶塌陷
溶洞
特征
成因分析
牛栏江
carbonate rock area
karst collapse
karst cave
character
genetic analysis
Niulanjiang River
