范宝祥^1,2,,
周忠发^1,2,,,
安丹^1,2,
闫利会^1,2,
郑维熙^1,2,
朱粲粲^1,2
1. 贵州师范大学喀斯特研究院/地理与环境科学学院, 贵州 贵阳 550001
2. 贵州省喀斯特山地生态环境国家重点实验室培育基地, 贵州 贵阳 550001

基金项目: 贵州省科技计划项目（批准号：黔科合基础[2020]1Y154）、贵州师范大学资助博士科研项目（批准号：GZNUD[2017]6号）、国家自然科学基金项目（批准号：41361081和41661088）和贵州省高层次创新型人才培养计划（批准号：黔科合平台人才[2016]5674）共同资助


详细信息

作者简介: 范宝祥, 男, 28岁, 硕士研究生, 自然地理学专业, E-mail: fantx101026@163.com

通讯作者: 周忠发, E-mail: fa6897@163.com

中图分类号: P931.5

收稿日期:2020-12-20
修回日期:2021-03-11
刊出日期:2021-11-30

The evolution process of atypical stalactites in Mahuang Cave, Suiyang County, Guizhou Province

FAN Baoxiang^1,2,,
ZHOU Zhongfa^1,2,,,
AN Dan^1,2,
YAN Lihui^1,2,
ZHENG Weixi^1,2,
ZHU Cancan^1,2
1. School of Karst Science/School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550001, Guizhou
2. The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, Guizhou


More Information

Corresponding author: ZHOU Zhongfa,E-mail:fa6897@163.com

MSC: P931.5

--> Received Date: 20 December 2020
Revised Date: 11 March 2021
Publish Date: 30 November 2021


摘要
摘要:通过对贵州绥阳麻黄洞洞内6处非典型钟乳石进行详细测量和统计学定量分析，描述其发育形态和空间分布特征，并探讨其形成演化过程及影响因素。主要结论为：从发育形态上看，麻黄洞洞内非典型钟乳石共计分布6处，最大面积5.06 m²，最小0.18 m²，由于洞道结构的差异性及洞穴风的作用，非典型钟乳石的生长方向各有不同，但主要方向与洞道的走向呈近似平行状态；发育过程来看，麻黄洞非典型钟乳石的形成主要是附着于洞穴顶板的基岩或已形成的洞穴次生化学沉积物表面，由滴水在洞穴风的影响下不断进行脱气沉积而形成；总体上，麻黄洞洞内非典型钟乳石的形成主要是水动力条件、基岩性质、洞道结构及风动力条件等因素耦合的作用，其中，洞穴风是形成非典型钟乳石的主要动力。
关键词: 麻黄洞/
演化过程/
非典型钟乳石/
影响因素/
贵州

Abstract:This paper measured and conducted a quantitative statistical analysis of 6 atypical stalactites in the Mahuang Cave(28°08'00″~28°20'00″N, 107°02'30″~107°25'00″E), a forming cave in Loushanguan Formation of Middle-Upper Cambrian Series, Guizhou Province. After describing morphological characteristics and spatial distribution, the paper discussed the evolutionary process and influencing factors of its formation. It was concluded that there were a total of 6 atypical stalactites in the Mahuang Cave, with a maximum area of 5.06 m² and a minimum of 0.18 m². The growth direction of atypical stalactites was mainly concentrated in two groups, 0°~66°(NNE)and 227°~226°(SW), and the overall orientation of the cave channel was 205°~220°, which showed that the growth direction of atypical stalactites was mainly parallel to the direction of the tunnel. The formation of atypical stalactites in the Mahuang Cave was mainly due to the continuous degassing deposition of dripping water on the surface of bedrock attached to the roof or on the formed secondary cave chemical deposits of the cave under the influence of cave wind, thus forming atypical stalactites, indicating that there were dripping points in the 6 atypical stalactites, and the carbon dioxide concentration in the dripping water was greater than in the cave air for a long period. The wind dynamic conditions formed by atypical stalactites were a good indicator of the ventilation conditions at different monitoring points in the tunnel and the overall ventilation status of the cave. The deposition direction of atypical stalactites in the cave indicated that the restricted ventilation dominated the Mahuang Cave. Overall, the formation of atypical stalactites in the Mahuang Cave resulted from the coupling of hydrodynamic conditions, bedrock properties, tunnel structure, and wind dynamic conditions. Among them, cave wind was the main driving force for the formation of atypical stalactites.
Key words:Mahuang Cave/
evolutionary process/
atypical stalactites/
influencing factors/
Guizhou



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