摘要
本文根据2004年7月25日至8月10日在台湾浅滩及其邻近海域获取的悬浮体样品,采用了"微孔滤膜法"取得数据,利用偏光显微镜、体视显微镜和扫描电镜及能谱分析,结果表明:悬浮体含量在水平分布上为由近岸向外逐渐降低,总体上表层悬浮体含量高于底层;悬浮体的成分包括粗颗粒组份(它生矿物碎屑、自生矿物和生源碎屑)和细颗粒组份(无机矿物颗粒和超微生源颗粒),其中表层矿物碎屑分布特征为由岸向外递减,底层矿物碎屑则为近岸低、浅滩区高和浅滩外侧低;自生矿物和表层生源碎屑都具有自岸向外增加的特点;细颗粒组份中无机矿物颗粒为主,超微生源颗粒含量较少.研究区悬浮体分布受水文因素、物质来源及海底地形的影响,中国大陆陆源输入影响研究区悬浮体成分及其分布特征.
Samples of suspended matter, attained from Taiwan Bank and in its vieinal shelf from July 25 to August 10,were studied by grain-size analysis and by microscope and SEM EDX. It shows that the content of suspended matter decreased from near shore to offshore. The composition of suspended particles include coarse size particles （mineral and biogenesis matter） and fine size particles （inorganic mineral and ultrastructural biogenesis matter）. The mineral content descendies from alongshore to outside in surface layer, the mineral content of bottom layer is low on near shore and high on Taiwan Bank and low offshore. The mineral and biogenesis matter from surface water layer increase from near shore to outward where inorganic mineral is higher than ultrastructural biogenesis matter. It is suggested that the distribution of suspended matter is affected by the hydrology, the origin of substances and topography. The composition and property of the inorganic particles is mainly determined by the materials from the mainland of china.
出处
《台湾海峡》
CAS
CSCD
北大核心
2008年第2期221-229,共9页
Journal of Oceanography In Taiwan Strait
基金
福建省科技计划重大专项前期项目资助(2005YZ1013)
908专项评价项目资助(908-02-05-03)
关键词
悬浮体
含量
成分
分布特征
台湾浅滩
suspended matter
content
composition
distribution characters
Taiwan Bank
