摘要
对长江口南槽水沙样品作了系统的理化分析。水质的分析结果表明,南槽水质类型属碱金属和重碳酸盐型,而盐度因素在影响南槽水质化学成分中起主导作用,水质化学成分既受河水又受海水的影响。长江口南槽悬沙粒度成分主要由粘土和粉砂两部分组成,而粘土矿物中约65％为伊利石,其他依次是绿泥石、蒙脱石和高岭石等。蒙脱石的含量在洪枯季的变化较其他组分明显。
The physical and chemical characteristics of water and sediment samples from the South Channel of the Changjiang estuary are analysed. The results indicated that the water quality belongs to alkali metal and heavy carbonate types. Salinity played a major role in controlling water quality and chemical contents in the channel, which was ultimately under the influence of both fresh water and sea water.
In terms of composition,illite took 65% of clay,followed by,in descending order,chlorite, smectite, kaolinite, etc. There was a greater fluctuation of the amount of smectite between the flood season and dry season than that of other constituents.
出处
《海洋通报》
CAS
CSCD
北大核心
1995年第3期106-113,共8页
Marine Science Bulletin
基金
中国自然科学基金
关键词
长江口
南槽
水化学
粘土矿物
悬沙
hydrochemical characteristics
clay mineral
South Channel
Changjiang estuary
