海坛岛海域表层沉积物中9种微量元素的地球化学

本文对海坛岛海域３３个表层沉积物９个微量元素的含量特征，含量变化和区域平面分布了描述和分析，主量化学成分和微量元素的Ｑ型和Ｒ型聚类分析结果表明，沉积物可分为三个地球化学分区，元素聚集为三类元素组合。

Geochemistry of nine microelements in surface sediments of Haitan Island seas

The contents of 9 microelements of 33 samples in surface sediments of Haitan Island seas are determined and their variation in different types of sediments and their horizontal distribution are discussed.Based on the Q-mode hierarchical clustering of the sediments, 9 microelements and 10major chemical composition, the sediments may be classified into three geochemical zones,which do reflect their geochemical characteristics comprehensively. The diagram of R model cluster pedigree shows that the group containing Ba, V, Cr, Co, Ni, Pb and Zn are associated with Al, Fe, C.,, etc. and closely related to fine-grained sediments and clay, whereas Sr is gathered in bio-carbonate group. Furthermore, the results of stepwise regression analysis,clearly indicate that Al and Fe are the main control factors for the microelements in the former group, and Sr is governed by carbonates.