期刊论文

THE DISTRIBUTION PATTERN OF THE SURFACE SEDIMENTS IN THE BERING SEA AND THE WESTERN ARCRIC AND ITS ENVIRONMENTAL IMPLICATIONS

中文

海洋地质与第四纪地质

Marine Geology ＆ Quaternary Geology

1001-4861

2015

18

03

1-9

国家自然科学基金项目(41206056)； 南北极环境综合与考察评估专项(CHINARE2015-03-02)； 中国大洋协会项目(DY12513R03)；

本校为其他机构

基于中国第2次至第5次北极科学考察以及俄罗斯科学院远东分院太平洋海洋研究所提供的表层沉积物样品,开展粒度分析,研究表层沉积物粒度特征及其变化规律对沉积环境的指示意义。白令海与北冰洋表层沉积物类型比较丰富,沉积物主要来源于陆源碎屑,搬运方式以河流、海岸侵蚀、冰筏为主,辅以洋流。沉积物类型主要因为沉积物搬运方式及距离的远近产生差异,白令海北部及楚科奇海南部表层沉积物粒度随着离陆地距离的增大而逐渐减小,高纬地区的沉积物因冰筏沉积作用而分选较差。

Based on the surface samples collected by the 2nd—5thChinese National Arctic Expedition and the V.I.Il＇ichev Pacific Oceanological Institute,Far Eastern Branch,Russian Academy of Sciences,grain size analyses were carried out to define the sediment types and their spatial distribution pattern in order to further probe their environmental implications.The various types of surface sediments are mainly the terrigenous clasts coming from the Arctic and the northwest Pacific,transported by rivers,coastal erosion,icerafting,and ocean currents.Most p...