闽江口表层沉积物中碎屑矿物的研究

研究闽江口表层沉积物中碎屑矿物的组成，含量及其分布特征，探讨泥沙的来源及重矿物与沉积环境的关系，结果表明，碎屑矿物共有４６种，其中轻矿物１２种，重矿物３４种。矿物组份的种类示出闽江口的碎屑物质主要来源于闽江流域的基岩风化、侵蚀产物，而重矿物的含量分布则与其所处的水力学条件和地形地貌关系密切。

Studies on Fragmentary Minerals in Surface Sediments f the Minjiang Estuary

The composition,content and distribution featureso f fragmentaryminerals in surface sediments of The Minjiang estuary were studied.Moreover,the origin of sands andthe relation between heavy minerals and sedimentary environment were researched.The resultsreveal that altogether there are 46 kinds of fragmentary minerals,among which 12 are light and34 are heavy,The composition of minerals show that in the Minjang estuary fragmentary miner-als originate from the weathered and eroded bedrock of the Minjang river valley,while distribu-tion of the content of heavy minerals relate closely to the hydraulic condition and the landformsand topography.