| 湖南慈利龙王洞岩溶发育特征及模式 |
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| 引用本文： | 许欣雨,陈清华,冀东生,崔有维.湖南慈利龙王洞岩溶发育特征及模式[J].新疆石油地质,2022,43(2):145-152. |
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| 作者姓名： | 许欣雨 陈清华 冀东生 崔有维 |
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| 作者单位： | 1.中国石油大学（华东） 地球科学与技术学院,山东 青岛 2665802.中国石油 a.新疆油田分公司 勘探开发研究院,乌鲁木齐 830011;b.长庆油田分公司 第五采气厂,西安 710018 |
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| 基金项目： | 国家科技重大专项(2016ZX05014-002) |
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| 摘 要： | 为明确缝控型溶洞特征和发育模式,通过人工测量和三维激光扫描的方法,构建了慈利龙王洞三维模型,对其构造特征进行了表征.龙王洞可分为西段、中段和东段,西段呈北东东—南西西向展布,以化学充填为主,充填程度较高;中段呈北北东—南南西向展布,以垮塌充填为主,充填程度最高;东段近东西向展布,以化学充填和流水沉积充填为主,充填程度较...
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| 关 键 词： | 慈利龙王洞 缝控型溶洞 岩溶发育特征 岩溶发育模式 三维激光扫描 分段性 相关性 主控因素 |
| 收稿时间： | 2021-10-10 |
Development Characteristics and Model of Cili Longwang Karst Cave in Hunan Province |
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| XU Xinyu,CHEN Qinghua,JI Dongsheng,CUI Youwei.Development Characteristics and Model of Cili Longwang Karst Cave in Hunan Province[J].Xinjiang Petroleum Geology,2022,43(2):145-152. |
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| Authors: | XU Xinyu CHEN Qinghua JI Dongsheng CUI Youwei |
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| Affiliation: | 1. School of Earth Science and Technology, China University of Petroleum, Qingdao, Shandong 266580, China2. PetroChina,a.Research Institute of Exploration and Developmen,Xinjiang Oilfield Company, Urumqi, Xinjiang 830011, China; b.No. 5 Gas Production Plant, Changqing Oilfield Company, Xi’an, Shaanxi 710018, China |
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| Abstract: | To study the development characteristics and model of the Longwang Cave in the Cili area of Hunan province, a 3D model is constructed by using manual survey and 3D laser scanning technology to characterize the structure of the karst cave. The Longwang Cave can be divided into three sections. The western section is NEE-SWW trending and filled with chemical cements. The middle section is NNE-SSW trending and filled with collapsed cements. The eastern section is nearly EW trending, and filled with chemical cements and flowing water deposits. As for the filling degree, the middle section shows the highest, the western section is higher, and the eastern section is the lowest. Controlled by a NEE-SWW trending fracture zone, the Longwang Cave is a typical fracture-controlled karst cave which has undergone four development stages. First, a NEE-SWW fracture zone was formed along the Sanguansi syncline. Then the rock was dissolved along the fracture zone by karst water from west to east, and an initial karst cave formed. Second, the initial karst cave was dislocated by NNW-SSE trending strike-slip thrust faults and then differential dissolution occured, that is, the western section was dissolved to a higher degree than the middle and eastern sections. Third, due to different numbers and scales of fractures, differential dissolution made the carst caves in the western section further expand, and the karst caves in the eastern section gradually connected together. The dissolution of the western section was higher than that of the eastern section. Finally, the middle section inherited the previous dissolution characteristics, so it is weaker than the eastern and western sections in dissolution. After the four stages above, the Longwang Cave shows its present structure. |
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| Keywords: | Cili Longwang Cave fracture-controlled karst cave development characteristic development model 3D laser scanning technology section correlation controlling factor |
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