Distributions of Radiolarian Diversity and Abundance in Surface Sediments of the South China Sea and Their Environmental Implications

详细信息   

• 责任者：Chen Muhong (Key Laboratory of Marginal Sea Geology ; CAS ; South China Sea Institute of Oceanology ; Guangzhou 510301 ; China) ; Zhang Lanlan
• 刊名：Earth Science
• 出版年：2012
• 卷期：37(4)
• 关键词：重力流沉积 ; gravity flow deposit ; 沉积体系 ; depositional system ; 南海 ; South China Sea
• 页码：p.627-634
• 图表：4 illus., 27 refs.
• 分类号：0803
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

摘要

The South China Sea （SCS） has relatively complete physiographical units and ecologic environments, where there are a lot of preservative radiolarian species and specimens in the sediments. Methods of quantitative statistics and clustering were used to analyze the radiolarian assemblages in surface sediments of the SCS, to understand their compositions and distributions. Results of clustering analyses show that the radiolarian assemblages in the SCS surface sediments may mainly be grouped as five types, including assemblages of shallow shelf, coral slope, central basin, southern rich nutrition and summer upwelling, corresponding to different special marine environments with certain radiolarian communities of dominant species.