摘要
台风、风浪、涌浪、风暴潮、天文潮等现象中的气流和水流往往携带大量固体碎屑物,对南海岛礁礁灰岩体产生强烈的侵蚀作用。笔者首先通过珊瑚的磨蚀与压缩实验验证了磨蚀理论的可靠性;其次,由抗压强度和弹性模量定义了具有压强量纲的抗蚀因子,以定量描述岩石抵抗风水侵蚀的能力;最后,对石岛西南端地表风成灰岩进行了初步研究,发现其抗蚀能力较弱。礁灰岩抗蚀性研究将为南海岛礁防护提供一定的科学依据。
In the South China Sea, carbonate debris and fragments are commonly transported by air and waterflow in forms of typhoon, wind wave, swell, storm surges and astronomic tide etc. accompanied by strongly erosion of the reef limestones. The research work presented in this paper confirmed the reliability of the abrasion theoretical model we developed via abrasion and compression experiments firstly. And then, the anti-erodibility factor with the dimension of pressure is defined using compressive strength and elastic modulus to quantificationally describe the anti-erodibility of rocks against wind and water. Finally, the preliminary investigation reveals that the aeolianites on the southwest of Shidao island have relative low anti-erodibility. The study of the antierodibility of reef limestones will provide certain scientific support for protection of the islands and reefs in the South China Sea.
作者
王振亭
刘旭阳
李孝泽
屈建军
WANG Zhenting;LIU Xuyang;LI Xiaoze;QU Jianjun(Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《海洋地质前沿》
CSCD
北大核心
2021年第6期71-76,共6页
Marine Geology Frontiers
基金
南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0601)
国家自然科学基金面上项目(41971011)。
关键词
礁灰岩
抗蚀性
磨蚀
压缩
石岛
coral reef limestone
anti-erodibility
abrasion
compression
Shidao island
