海洋地质与第四纪地质2017，Vol.37Issue(6)：140-148,9.DOI:10.16562/j.cnki.0256-1492.2017.06.015
南海宣德海域表层沉积物粒度特征及其输运趋势
SEDIMENT GRAIN SIZE DISTRIBUTION PATTERN AND TRANSPORTATION TREND IN THE XUANDE WATER, SOUTH CHINA SEA
摘要
Abstract
Grain size analysis and parameter calculation have been carried out for 151 surface sediments collected from the Xuande Waters in the South China Sea.Results show that the surface sediments of the area are made of 8 types of sediments dominated by sand and gravel.Silt and clay contents are relatively small.Factor and Cluster analysis of grain size parameters is used to discriminate different depositional environments.The study area can be further divided into four subareas,The subarea Ⅰ is mainly located in the middle of study area,the subarea Ⅱ near the reefs,the subarea Ⅲ located in the inner Xuande Atoll,and the subarea Ⅳ located in lateral edges of the reef atoll.Grain size trend analysis suggests that the sediment transport pattern is consistent with the hydrodynamic conditions of the study area,and a sediment depositional area is formed in the water next to the Tri Ton island.关键词
粒度特征/粒径趋势/表层沉积物/宣德海域Key words
grain size characteristics/grain-size trend analysis/surface sediment/Xuande waters分类
海洋科学引用本文复制引用
李亮,何其江,龙根元,贺超,杨凡..南海宣德海域表层沉积物粒度特征及其输运趋势[J].海洋地质与第四纪地质,2017,37(6):140-148,9.基金项目
海南省国土资源厅项目(HZ2015-235) （HZ2015-235）
