TRACE METALS IN VANDA LAKE IN ANTARCTICA——A VERTICAL MIGRATION MODEL OF TRACE METALS IN CLOSED BASIN

Vanda Lake, a typical dimictic CaCl_2 type salt lake, is located in the Wright Valley inAntarctica. Based on the chemical and physical features of the salt lake water, the authorsdiscussed the vertical geochemical distribution of Fe, Mn, Pb, Cr, Cu, Co, Ni, Cd in the lake,and their vertical migration in lake waters, and have tried to set up a model of vertical mi-gration of these trace elements in the water of a closed chloride type salt lake.

南极洲万达盐湖中的痕量金属——一个封闭湖盆中痕量金属垂直迁移模式

万达湖(Vanda Lake)位于南极洲赖特谷(Wright Valley),它是一典型的双季回水的CaCl_2型盐湖。本文基于该盐湖水溶液的某些化学和物理性质,阐述了湖水中的痕量金属Fe,Mn,Pb,Cr,Cu,Co,Ni和Cd浓度随水深变化的垂直地球化学分布,讨论了湖水中的这些痕量金属的垂直迁移作用,并试图建立一封闭的氯化物型盐湖水中痕量金属垂直迁移模式。