中国大型岩溶洞穴空间分布及演变规律  

Large Karst Caves Distribution and Development in China

作　　者：张远海[1] 朱德浩[1] 

机构地区：[1]中国地质科学院岩溶地研究所,广西桂林541004

出　　处：《桂林理工大学学报》2012年第1期20-28,共9页Journal of Guilin University of Technology

基　　金：中国地质调查局项目(1212010634803);中国地质科学院岩溶地质研究所所长基金(2011007)

摘　　要：根据初步统计,中国目前实测长度超过5 km的岩溶洞穴有79个,深度大于250 m的岩溶洞穴有62个,洞底投影面积超过20 000 m2的岩溶洞穴大厅有24个;根据有关水文地质资料,超过50 km长的岩溶地下河有23条。这些大型岩溶洞穴(地下河)绝大部分均分布在中国西南地区,这里碳酸盐岩古老坚硬,连续沉积厚度大,裸露面积达500 000 km2,同时以雨热同期温暖湿润的亚热带季风气候为特征。Current data indicate that the recorded 79 karst caves in China are longer than 5 km and 62 deeper than 250 m. 24 cave chambers with individual floor areas are larger than 20 000 m2, and 23 separate under- ground river systems longer than 50 kin. Most of these caves and cave river systems are in southwestern China, where massive, thick and continuous sequences of carbonate rock are outcrop with the area about 500 000 km2. Warm and moist, subtropical monsoon climate contributes to the development of large karst eAvas

关 键 词：岩溶 洞穴 洞穴大厅 地下河 碳酸盐岩 

分 类 号：P642.252[天文地球—工程地质学]