从沉积物中重矿物动力分区论钦州湾泥沙来源及运移趋势  

Disscution on the Source and Transport Tendency of Silt in the Qinzhou Bay in Terms of the Dynamic Partition Zones of Havey Minerals in the Sediments

作　　者：黎广钊[1] 梁文[1] 刘敬合[1] 

机构地区：[1]广西海洋研究所,广西北海536000

出　　处：《海洋通报》2002年第5期61-68,共8页Marine Science Bulletin

基　　金：广西自然科学基金(桂科处0007009)资助项目

摘　　要：钦州湾沉积物中重矿物组合大体上划分为四个动力分区：内湾茅尾海重矿物区即钛铁矿-电气石-锆石-赤铁矿组合区，湾颈-外湾重矿物区即钛铁矿-赤铁矿-锆石-电气石组合区，外湾东部重矿物区即电气石-锆石-钛铁矿组合区，外湾西南部重矿物区即电气石-钛铁矿-锆石组合区。在重矿物动力分区的基础上，探讨钦州湾泥沙来源及其运移趋势。：Heavy mineral assemblages in the sediment of Qinzhou Bay roughly fall into four Dynamic Partition Zones: (1) inside Maoweihai Bay area, i.e., ilmenite-tourmaline-zircon-hematite assembage zone, (2) the neck area of bay-outside bay area, i.e., ilmenite-hematite-zircon-tourmaline assemblage zone; (3) the eastern area of outside bay, i.e., tourmatine-zircon-ilmenite assemblage zone; (4) the southwestern area of outside bay, i.e., tourmatine-ilmenite-zircon assemblage zone. On the basis of the study of sediment types and dynamic partition zones of heavy minerals assemblage, silt sources and its transport tendency in Qinzhou Bay are discussed.

关 键 词：沉积物 重矿物 泥沙来源 泥沙运移 钦州湾 

分 类 号：P736.21[天文地球—海洋地质] TV148[天文地球—海洋科学]