GEOCHEMISTRY OF SURFACE SEDIMENTS IN THE TAIXINAN (SOUTHWESTERN TAIWAN) SEA AREA IN THE NORTHEASTERN SOUTH CHINA SEA
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摘要: 对南海台西南海域表层沉积物的常量、微量元素含量分布变化特征、元素相关性以及元素组合特征进行了分析。结果表明,SiO2和Al2O3是研究区表层沉积物中的最主要组分,元素的含量与水深、粒度存在明显的相关性;R型因子分析识别出3个元素组合,分别代表细粒的陆源碎屑沉积组合、粗粒的生物碎屑组合和细粒的生物碎屑组合;研究区表层沉积物的物质来源主要有陆源和生物源两种,以陆源为主。Abstract: Element distribution,corrections and assemblages of surface sediments from Taixinan area in the northeastern South China Sea are studied in the article. The results show that SiO2 and Al2O3 are the most important components in the surface sediments, that element contents change with water depth and granularity, that R fator analysis gives three assemblages which represent fine-grained terrestrial chips, coarse-grained biological materials and fine biological materials, and that genetically surface sediments in the studied area mostly come from continent and secondly from biology.
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Key words:
- surface sediments /
- element /
- corrections /
- sediment origin /
- the Taixinan sea area
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