论文部分内容阅读
本文利用＂海洋四号＂调查船，ＨＹ４－８７１航次在东太平洋海盆ＣＣ２９站取得的短柱状样，研究了沉积物岸性变化特征，分析讨论了元素在沉积物固液两相间的迁移变化及其影响因素．结果表明，在短暂的地史时期内，ＣＣ２９站沉积环境和物质来源都有变化．沉积物由过去的以陆源和火山源为主演变到现在的以陆源和生物源为主．沉积物物质来源的变化是引起ＣＣ２９站沉积物主要化学组分变化的重要原因；间隙水元素浓度的变化除与沉积环境有关外，还主要受沉积物早期成岩作用的影响．
In this paper, using the “Ocean No. 4” survey ship, HY4-871 voyage in the East Pacific Basin CC29 station to obtain a short column-like, the study of changes in the characteristics of sediment shore, analysis and discussion of element migration in the solid-liquid sediment changes and Its influencing factors. The results show that there is a change in the depositional environment and material sources of CC29 station in a short period of geo-history. Sediments dominated by terrestrial and biogenic sources from the past, mainly terrestrial and volcanic sources. The change of source of sediment is the main reason for the change of the main chemical components of sediments in CC29 station. The change of elemental concentration of interstitial water is mainly influenced by the sedimentary environment and the diagenesis of sediments.