海南岛近海沉积物中海绿石矿物学特征及成因研究#br#

现代矿业 ›› 2026, Vol. 42 ›› Issue (05): 100-105，110.

海南岛近海沉积物中海绿石矿物学特征及成因研究#br#

陈颂学^1，2 黄军^1，2 仝长亮^1，2

1. 海南省海洋地质资源与环境重点实验室；2. 海南省地质测试研究中心

出版日期:2026-05-25 发布日期:2026-06-15

Study on the Mineralogical Characteristics and Genesis of Glauconite in Offshore Sediments of Hainan Island

1. Hainan Key Laboratory of Marine Geological Resources and Environment; 2. Hainan Geological Testing and Research Center

Online:2026-05-25 Published:2026-06-15

摘要/Abstract

摘要： 为了深入探究海南岛近海沉积物中海绿石的矿物学特征，针对其成因机制进行了海绿石样品的实际观察与物理性质、光学性质、化学成分及谱学特征等一系列物化试验测试，并结合区域地质资料开展了综合分析。研究结果表明：该海绿石是一种典型的自生矿物，其物质来源与陆源物质有关；化学组成上为富钾、富铁的含镁含水层状铝硅酸盐，具有介于二八面体与三八面体之间的云母型结构；在矿物学上属于无序混层结构，其组成以伊利石/蒙皂石混层矿物为主，并含有少量伊利石、石英、斜长石、菱铁矿、赤铁矿和方解石等混入物；该海南岛近海沉积物中海绿石处于成熟进行阶段，具备现代海绿石性质，且对其赋存砂矿床的开发利用具有重要意义。

关键词: 海绿石, 矿物学特征, 成因研究, 近海沉积物, 海南岛

Abstract: In order to further explore the mineralogical characteristics of glauconite in offshore sedi⁃ ments of Hainan Island，a series of physical and chemical tests such as actual observation，physical prop⁃ erties，optical properties，chemical composition and spectral characteristics of glauconite samples are car⁃ ried out according to its genetic mechanism，and a comprehensive analysis is carried out in combination with regional geological data.The results show that the glauconite is a typical authigenic mineral，and its material source is related to terrestrial materials. The chemical composition is potassium-rich and iron�rich magnesium-containing aquifer aluminosilicate，with a mica-type structure between dioctahedral and trioctahedral. Mineralogically，it belongs to disordered mixed-layer structure，which is mainly composed of illite/smectite mixed-layer minerals，and contains a small amount of illite，quartz，plagioclase，sider⁃ ite，hematite and calcite.The glauconite in the offshore sediments of Hainan Island is in the mature stage and has the properties of modern glauconite，which is of great significance for the development and utiliza⁃ tion of the occurrence sand mineral deposit.

Key words: glauconite, mineralogical characteristics, genetic studies, offshore sediments, Hainan Is? land

陈颂学, 黄军, 仝长亮. 海南岛近海沉积物中海绿石矿物学特征及成因研究#br#[J]. 现代矿业, 2026, 42(05): 100-105，110.

CHEN Songxue, HUANG Jun, TONG Changliang, . Study on the Mineralogical Characteristics and Genesis of Glauconite in Offshore Sediments of Hainan Island[J]. Modern Mining, 2026, 42(05): 100-105，110.

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