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南沙海槽南部及邻近海区表层沉积物中的碎屑矿物特征
引用本文:陈忠,古森昌,颜文,刘芳文.南沙海槽南部及邻近海区表层沉积物中的碎屑矿物特征[J].热带海洋学报,2002,21(2):84-90.
作者姓名:陈忠  古森昌  颜文  刘芳文
作者单位:1. 中国科学院南海海洋研究所边缘海地质与古环境开放实验室,广东,广州,510301中国地质大学测试中心,湖北,武汉,430074
2. 中国科学院南海海洋研究所边缘海地质与古环境开放实验室,广东,广州,510301
基金项目:国家自然科学基金资助项目(40076018),中国科学院知识创新工程项目(KZCX2-209,KZCX2-SW-117)
摘    要:南沙海槽南部海区73个表层沉积物中的碎屑矿物主要有石英、长石、自然铅、褐铁矿、锐钛矿、金红石等,其分布受地形、地貌的控制,可分为西北大陆坡碎屑矿物组合、槽底碎屑矿物组合、东南大陆架碎屑矿物组合3种类型。不同组合类型具有不同的物质来源。

关 键 词:南沙海槽  碎屑矿物  矿物组合类型  物质来源  石英  长石  地形  地貌  褐铁矿
文章编号:1009-5470(2002)02-0084-07
修稿时间:2001年7月30日

CHARACTERISTICS OF CLASTIC DEPOSIT MINERALS IN SURFACE SEDIMENTS OF SOUTH NANSHA TROUGH AND ADIACENT SEA AREAS
CHEN Zhong,GU Sen--chang,YAN Wen,LIU Fang--wen.CHARACTERISTICS OF CLASTIC DEPOSIT MINERALS IN SURFACE SEDIMENTS OF SOUTH NANSHA TROUGH AND ADIACENT SEA AREAS[J].Journal of Tropical Oceanography,2002,21(2):84-90.
Authors:CHEN Zhong    GU Sen--chang  YAN Wen  LIU Fang--wen
Institution:CHEN Zhong1,2,GU Sen--chang1,YAN Wen1,LIU Fang--wen1
Abstract:Detrital minerals in the surface sediments of the southern Nansha Trough andadjacent sea areas consist of deposit minerals such as quartz, feldspar, native lead, limo-nite, anatase, rutile. The changes of detrital mineral contents with water depth, land-form and physiognomy indicate that the distribution of minerals is mainly affected bylandform and physiognomy, and the affecting factors are complicated. The combinationsof detrital minerals can be divided into three types,including northwest continental slopemineral combination, trough bottom mineral combination and southeast continentalshelf mineral combination. Different type of mineral combination has different substancesource.
Keywords:southern Nansha Trough and adjacent sea area  detrital mineral  type of min-eral combination  substance source
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