| 珠三角地区岩溶分布特征及发育规律 |
| |
| 引用本文： | 蒙彦,郑小战,雷明堂,李卓骏,贾龙,潘宗源.珠三角地区岩溶分布特征及发育规律[J].中国岩溶,2019,38(5):746-751. |
| |
| 作者姓名： | 蒙彦 郑小战 雷明堂 李卓骏 贾龙 潘宗源 |
| |
| 作者单位： | 1.中国地质大学（武汉），武汉 430074/中国地质科学院岩溶地质研究所／中国地质调查局岩溶塌陷防治重点实验室，广西 桂林 541004 |
| |
| 基金项目： | 国家自然科学基金(41877300，41302255)；中国地质调查项目（1212011220192，DD201902664)；广州市多要素城市地质调查项目（DD20190219）；广州市岭南英杰工程人才培养项目；广西自然科学基金项目（2018GXNSFAA294020） |
| |
| 摘 要： | 在综合分析区域构造、地层岩性与岩溶发育关系的基础上，结合钻探资料，系统总结出珠三角地区的岩溶分布特征和发育规律。结果表明:珠三角地区的岩溶分布可分为3个条带，形成发育分为3个阶段，分别受地质构造、古水文网和地下水控制。岩溶横向发育规律受地质构造和岩石化学性质综合控制，岩石化学性质为内在因素，起决定性作用，地质构造为地下水提供通道，起主导作用；区内强岩溶发育带集中分布在石炭系的壶天组和石磴子组中，国土空间规划布局和工程建设选址应重点评价。岩溶纵向发育分为4层，最深可达标高400 m以下，其中标高-35~-80 m为岩溶极强发育带，地下空间开发利用应尽量避让，而标高-35 m以上和-100 m以下岩溶发育较弱，在适当采取工程措施后，较适宜开发利用。
|
| 关 键 词： | 珠三角 岩溶 影响因素 分布特征 发育规律 |
Karst distribution and development in the Pearl River Delta |
| |
| MENG Yan,ZHEN Xiaozhan,LEI Mingtang,LI Zhuojun,JIA Long and PAN Zongyuan.Karst distribution and development in the Pearl River Delta[J].Carsologica Sinica,2019,38(5):746-751. |
| |
| Authors: | MENG Yan ZHEN Xiaozhan LEI Mingtang LI Zhuojun JIA Long and PAN Zongyuan |
| |
| Institution: | 1.China University of Geosciences（Wuhan）, Wuhan，Hubei 430074, China/Institute of Karst Geology, CAGS& Laboratory of Karst Collapse Prevention, CGS, Guilin，Guangxi 541004, China2.Institute of Geology Survey of Guangzhou, Guangzhou，Guangdong 510440, China3.Institute of Karst Geology, CAGS& Laboratory of Karst Collapse Prevention, CGS, Guilin，Guangxi 541004, China |
| |
| Abstract: | The karst formation and development in the Pearl River Delta can be divided into three zones which have been developed in three geological stages and controlled by geological structure, ancient hydrological network and groundwater circulation. The area with strong karst is mainly distributed in the Hutian and Shidengzi formation. The horizontal distribution of karst is controlled by the petrochemistry which is the internal factor and plays a decisive role; and geological structure provides a channel for groundwater and plays a leading role in the development of karst. Vertically, the karst can be divided into four layers. The elevation of -35 m to -80 m is the space range where karst is extremely intense and is susceptible to underground construction. The zones with elevations of above -35 m and between -100 m and -400 m fall in the areas with moderate karst, where some constructions with appropriate protection measures may be done. Below the elevation of -400 m, karst still occurs but is very weak. The factors mentioned above should be taken into account in land planning and utilization of underground space in karst areas. |
| |
| Keywords: | Pearl River Delta karst influence factor distribution characteristic development law |
|
| 点击此处可从《中国岩溶》浏览原始摘要信息 |
| 点击此处可从《中国岩溶》下载免费的PDF全文 |
|
