REE geochemistry of surface sediments in the Chukchi Sea

被引:25
|
作者
Chen, ZH
Gao, AG [1 ]
Liu, YG
Sun, HQ
Shi, XF
Yang, ZS
机构
[1] Key Lab Marine Sedimentol & Environm Geol, State Ocean Adm, Qingdao 266061, Peoples R China
[2] First Inst Ocenaog, State Ocean Adm, Qingdao 266061, Peoples R China
[3] Ocean Univ Qingdao, Qingdao 266003, Peoples R China
来源
关键词
Chukchi Sea; surface sediments; rare earth elements;
D O I
10.1360/03yd9053
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Analyses of rare earth elements (REEs) in 26 surface sediment samples obtained from the Chukchi Sea were conducted using ICP-MS. In general, REEs are relatively rich in fine-grained sediments and deplete in coarse-grained sediments in the Chukchi Sea although REEs have large concentration spans in different types of sediments. Except that a few samples have weak enrichments of light or heavy REEs, most samples exhibit flat shale-normalized REE pattern, indicating that surface sediments in the Chukchi Sea are composed dominantly of terrigenous components experiencing weak chemical weathering. In terms of REE concentrations and other characteristic parameters, we inferred that sediments on the eastern and western sides of the Chukchi Sea are derived from landmasses of Alaska and Siberia, respectively; the midsouth sediments are possibly related to northward dispersion of the Yukon River materials. The Herald Shoal in the center of the study area is covered with relict sediment, which has large ratios of light-to-heavy REEs (SigmaC(e)/SigmaY ratio) and lacks evident negative Ce anomaly; cerium enrichment is possibly related to manganese transfer under oxidizing conditions in early diagenesis.
引用
收藏
页码:603 / 611
页数:9
相关论文
共 50 条
  • [1] REE geochemistry of surface sediments in the Chukchi Sea
    陈志华
    高爱国
    刘焱光
    孙海清
    石学法
    杨作升
    [J]. Science China Earth Sciences, 2003, (06) : 603 - 611
  • [2] REE geochemistry of surface sediments in the Chukchi Sea
    Chen Zhihua
    Gao Aiguo
    Liu Yanguang
    Sun Haiqing
    Shi Xuefa
    Yang Zuosheng
    [J]. Science in China Series D: Earth Sciences, 2003, 46 (6): : 603 - 611
  • [3] Temporal change of prokaryotic community in surface sediments of the Chukchi Sea
    Sun, Jianxing
    Zhou, Hongbo
    Cheng, Haina
    Chen, Zhu
    Wang, Yuguang
    [J]. ECOHYDROLOGY & HYDROBIOLOGY, 2022, 22 (03) : 484 - 495
  • [4] OXYGEN ISOTOPE AND REE GEOCHEMISTRY OF SEDIMENTS IN WEST SEA AREA OF ANTARCTIC PENINSULA
    XU, BT
    SHI, GC
    [J]. KEXUE TONGBAO, 1988, 33 (13): : 1114 - 1116
  • [5] REE GEOCHEMISTRY OF SEA-FLOOR SEDIMENTS FROM THE TAIWAN SHALLOW, CHINA
    WU, MQ
    [J]. GEOCHIMICA, 1983, (03) : 303 - 313
  • [6] OXYGEN ISOTOPE AND REE GEOCHEMISTRY OF SEDIMENTS IN WEST SEA AREA OF ANTARCTIC PENINSULA
    徐步台
    施光春
    [J]. Science Bulletin, 1988, (13) : 1114 - 1116
  • [7] REE Geochemistry of Sea-floor Sediments of the Continental Shelf-of the East China Sea
    王贤觉
    陈毓蔚
    雷剑泉
    吴明清
    赵一阳
    [J]. Acta Geochimica, 1983, (04) : 318 - 327
  • [8] GEOCHEMISTRY OF SURFACE SEDIMENTS FROM THE ARABIAN SEA
    SHANKAR, R
    SUBBARAO, KV
    KOLLA, V
    [J]. MARINE GEOLOGY, 1987, 76 (3-4) : 253 - 279
  • [9] REE GEOCHEMISTRY IN SEA-FLOOR SEDIMENTS IN THE CONTINENTAL-SHELF OF EAST-CHINA SEA
    WANG, XJ
    CHEN, YW
    LEI, JQ
    WU, MQ
    ZHAU, YY
    [J]. GEOCHIMICA, 1982, (01) : 56 - 65
  • [10] REE geochemistry of suspended sediments from the rivers around the Yellow Sea and provenance indicators
    YANG Shouye
    LI Congxian
    C. B. Lee
    T. K. Na
    [J]. Science Bulletin, 2003, (11) : 1135 - 1139