南黄海近岸沉积物的某些地球化学特征

THE GEOCHEMICAL CHARACTERISTICS OF INSHORE SEDIMENTS FROM THE SOUTHERN OF THE HUANGHAI SEA

本文分析了南黄海近岸沉积物中P_2O_5,CaCO_3、有机碳及一些金属元素的地球化学特征;探讨了这些特征与沉积物类型、水动力状况、入海河流、生物活动及沉积环境的关系。

The geochemical characteristics of P2O5,CaCO3, organic carbon and some heavy metal elements of inshore sediments from the southern of the Huanghai Sea are correlated with the types of sediments, hydro-graphic conditions, runoff of rivers, biological activities, topography of sea floor and depositional environments, all of them effect on deposition. The distributions of metal elements such as Cu, Pb, Zn, V, Ni, Ga... are correlated with the contents of organic matter and clay components, showing some metal elements in clayer in minerals and sediments are indivisible parts of organic-clay complex and they are bonded each other. This bond is a developing procedures from rivers to sea and from particulate matter to sediments in floor, i. e the ones in which metal elements become from free to compound.