| 鲁中山区中生代构造活动对现今岩溶地下水赋存规律的控制作用 |
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| 引用本文： | 刘元晴,周乐,李伟,王新峰,马雪梅,吕琳,尹凯,孟顺祥.鲁中山区中生代构造活动对现今岩溶地下水赋存规律的控制作用[J].吉林大学学报(地球科学版),2021,51(6):1811-1822. |
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| 作者姓名： | 刘元晴 周乐 李伟 王新峰 马雪梅 吕琳 尹凯 孟顺祥 |
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| 作者单位： | 1. 中国地质调查局水文地质环境地质调查中心, 河北 保定 070151;2. 山东众成岩土工程有限公司, 山东 烟台 264000 |
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| 基金项目： | 中国地质调查局项目（DD20190259，DD20160289，12120114010802，12120114010801） |
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| 摘 要： | 为了掌握中生代构造运动以来鲁中山区岩溶地下水富集规律，以莱芜盆地为例，通过水文地质调查及数据统计分析、钻探施工、地质露头观测、碳酸盐岩可溶组分分析等方法，对中生代构造活动特征、岩浆活动特征，及其对岩溶地下水赋存规律的控制作用进行研究。结果表明：鲁中山区具有典型盆-山结构水文地质特征，盆地南北两侧水文地质特征不尽相同；区域滑脱构造形成的层间虚脱、空隙、碎裂岩带，使得鲁中山区下寒武统朱砂洞组含水层表现为"似层状"特征；热液混合岩溶作用形成的溶蚀裂隙、洞穴可成为岩溶地下水良好的赋存空间；由中生代滑脱构造及热液岩溶活动形成的岩溶介质环境受同期或后期层间溶蚀裂隙及断层沟通，形成立体的岩溶地下水网络。岩溶地下水沿该网络径流、富集，形成鲁中山区特有的岩溶地下水赋存特征。
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| 关 键 词： | 水文地质 滑脱构造 热液溶蚀 鲁中山区 构造运动 岩溶地下水 |
| 收稿时间： | 2020-03-03 |
Controlling Effect of Mesozoic Tectonic Activities on Present Karst Groundwater Occurrence in Central Mountain Area of Shandong Province |
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| Liu Yuanqing,Zhou Le,Li Wei,Wang Xinfeng,Ma Xuemei,Lü Lin,Yin Kai,Meng Shunxiang.Controlling Effect of Mesozoic Tectonic Activities on Present Karst Groundwater Occurrence in Central Mountain Area of Shandong Province[J].Journal of Jilin Unviersity:Earth Science Edition,2021,51(6):1811-1822. |
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| Authors: | Liu Yuanqing Zhou Le Li Wei Wang Xinfeng Ma Xuemei Lü Lin Yin Kai Meng Shunxiang |
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| Institution: | 1. Center for Hydrogeology and Environmental Geology Survey, China Geological Survey, Baoding 071051, Hebei, China;2. Shandong Zhongcheng Geotechnial Engineering Limited Company, Yantai 264000, Shandong, China |
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| Abstract: | Influenced by the Mesozoic tectonic movement, faults, and folds occurred in the central mountain area of Shandong, the strata tilted, strata, and forming a series of graben-semi-graben basins with extensional detachment and Yanshanian magmatic intrusion. By taking Laiwu basin as an example, the influence of Mesozoic tectonic activities on the present karst groundwater occurrence was studied by means of hydrogeological survey, data statistics, drilling construction, geological outcrop observation, and analysis of soluble components of carbonate rocks. The results show that it has typical hydrogeological characteristics of basin-mountain structure in the central mountain area of Shandong. The hydrogeological characteristics of the south and north sides of the basin are different. The interlayer collapse, voids, and fractured rock zones formed by the regional decollement structure make the Lower Cambrian Zhushadong Formation aquifer show "stratiform". The dissolution fissures and caves formed by the hydrothermal mixed karstification are good space for the occurrence of karst groundwater. The interlayer corrosion fissures and faults formed by Mesozoic detachment structure and hydrothermal karst activity are connected in the same period or later, forming a three-dimensional karst groundwater network. The karst groundwater flows and accumulates along the network, and forms the unique characteristics of karst groundwater occurrence in the central mountain area of Shandong. |
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| Keywords: | hydrogeology decollement structure hydrothermal dissolution central mountain area of Shandong Province tectonic movement karst groundwater |
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