• 责任者：Li Kang (Key Laboratory of Marine Geology and Environment ; Institute of Oceanology ; Chinese Academy of Sciences ; Qingdao 266071 ; China) ; Zeng Zhigang
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2009
• 卷期：29(3)
• 关键词：海洋沉积物 ; marine sediments ; 元素地球化学 ; elements geochemistry ; 赋存形式 ; presence modes ; 东太平洋 ; East Pacific
• 页码：p.53-60
• 图表：4 illus., 2 tables, 28 refs.
• 分类号：0200
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

In order to assess the influence of seafloor hydrothermal activity on element occurrence in sediments, the authors carried out sequential extraction procedures and whole-rock analysis for the surface sediments (17A-EPR-TVG1, 17A-EPR-TVG5) collected from East Pacific Rise near 13°N and the equator, and discussed mode of element occurrence of Al, Ca, Fe, Mn, Ti, Ba, Zn, Cu, Sr, V, Mo, U and rare earth elements (REE). XRD results indicate that the primary mineral phase of 17A-EPR-TVG1 is pyrite and 17A-EPR-TVG5 sample has calcite as its main mineral. Elements except Ca and Sr of 17A-EPR-TVG1 which were greatly affected by hydrothermal activity mainly occur in the residual phase and ferromanganese oxide phase.