盐湖研究
鹽湖研究
염호연구
JOURNAL OF SALT LAKE RESEARCH
2002年
2期
10-17
,共8页
万达湖%悬浮物%粘土矿物%痕量金属
萬達湖%懸浮物%粘土礦物%痕量金屬
만체호%현부물%점토광물%흔량금속
Vanda Lake%Suspension%Clay mineral%Trace metal
南极洲万达盐湖水中悬浮物的流量:水深12m,119.673mg/cm2*a;32m,67.93mg/cm2*a;45m,15.82mg/cm2*a;48m,9.46mg/cm2*a;60m,13.55mg/cm2*a;65m,30.33mg/cm2*a.湖水悬浮物中粘土矿物主要为伊利石,含量64～67%,次为绿泥石,含量25～30%,蒙脱石仅含5.9～6.6%,而高岭石含量极低. 湖水悬浮物中痕量金属的含量:水深12m,Cr 54.3μg/g、Cu 119.3μg/g、Ni 53.4μg/g、Co 23.9μg/g、Cd 1.43μg/g;32m,Cr 44.9μg/g、Cu 118.7μg/g、Ni 50.2μg/g、Co 19.4μg/g、Cd 1.51μg/g;45m,Cr 53μg/g、Cu 142.8μg/g、Ni 59.8μg/g、Co 19.8μg/g、Cd 1.83μg/g;60m,Cr 13.2μg/g、Cu 49.6μg/g、Ni 13.4μg/g;Co 4.3μg/g、Cd 0.37μg/g;65m,Cr 7.4μg/g、Cu 17.6μg/g、Ni 6.7μg/g、Co 2.4μg/g、Cd 0.36μg/g. 悬浮物中痕量金属含量高低顺序:Cu＞Cr＞Ni＞Co＞Cd. 在水深60m以上,悬浮物中痕量金属主要被束缚在硅酸盐、锰的氧化物及铁的氢氧化物悬浮物颗粒上,在水深60m以下,则主要被束缚在硅酸盐矿物及有机质颗粒上.
南極洲萬達鹽湖水中懸浮物的流量:水深12m,119.673mg/cm2*a;32m,67.93mg/cm2*a;45m,15.82mg/cm2*a;48m,9.46mg/cm2*a;60m,13.55mg/cm2*a;65m,30.33mg/cm2*a.湖水懸浮物中粘土礦物主要為伊利石,含量64～67%,次為綠泥石,含量25～30%,矇脫石僅含5.9～6.6%,而高嶺石含量極低. 湖水懸浮物中痕量金屬的含量:水深12m,Cr 54.3μg/g、Cu 119.3μg/g、Ni 53.4μg/g、Co 23.9μg/g、Cd 1.43μg/g;32m,Cr 44.9μg/g、Cu 118.7μg/g、Ni 50.2μg/g、Co 19.4μg/g、Cd 1.51μg/g;45m,Cr 53μg/g、Cu 142.8μg/g、Ni 59.8μg/g、Co 19.8μg/g、Cd 1.83μg/g;60m,Cr 13.2μg/g、Cu 49.6μg/g、Ni 13.4μg/g;Co 4.3μg/g、Cd 0.37μg/g;65m,Cr 7.4μg/g、Cu 17.6μg/g、Ni 6.7μg/g、Co 2.4μg/g、Cd 0.36μg/g. 懸浮物中痕量金屬含量高低順序:Cu＞Cr＞Ni＞Co＞Cd. 在水深60m以上,懸浮物中痕量金屬主要被束縳在硅痠鹽、錳的氧化物及鐵的氫氧化物懸浮物顆粒上,在水深60m以下,則主要被束縳在硅痠鹽礦物及有機質顆粒上.
남겁주만체염호수중현부물적류량:수심12m,119.673mg/cm2*a;32m,67.93mg/cm2*a;45m,15.82mg/cm2*a;48m,9.46mg/cm2*a;60m,13.55mg/cm2*a;65m,30.33mg/cm2*a.호수현부물중점토광물주요위이리석,함량64～67%,차위록니석,함량25～30%,몽탈석부함5.9～6.6%,이고령석함량겁저. 호수현부물중흔량금속적함량:수심12m,Cr 54.3μg/g、Cu 119.3μg/g、Ni 53.4μg/g、Co 23.9μg/g、Cd 1.43μg/g;32m,Cr 44.9μg/g、Cu 118.7μg/g、Ni 50.2μg/g、Co 19.4μg/g、Cd 1.51μg/g;45m,Cr 53μg/g、Cu 142.8μg/g、Ni 59.8μg/g、Co 19.8μg/g、Cd 1.83μg/g;60m,Cr 13.2μg/g、Cu 49.6μg/g、Ni 13.4μg/g;Co 4.3μg/g、Cd 0.37μg/g;65m,Cr 7.4μg/g、Cu 17.6μg/g、Ni 6.7μg/g、Co 2.4μg/g、Cd 0.36μg/g. 현부물중흔량금속함량고저순서:Cu＞Cr＞Ni＞Co＞Cd. 재수심60m이상,현부물중흔량금속주요피속박재규산염、맹적양화물급철적경양화물현부물과립상,재수심60m이하,칙주요피속박재규산염광물급유궤질과립상.
Clay minerals in the suspension are illit,64～67%;chlorite,25～30%;montmorillonite,5.9～6.6% and Kaollite rare.Clay minerals in the suspension are similar to these in the Onyx River and the lake bottom sediments.The clay mineral content in the suspensions in the upper fresh water is not clearly realated to the water depth ,the clay contentis very low and no chlorite is found at depth of 65m.With the increase of water depth,distribution coefficient (Kp)of the trace metals decreases gradually.The suspension controls the vertical immigration of trace metals in the lake water.The trace metal content sequence in the suspension are:Cu＞Cr＞Ni＞Co＞Cd.In the upper 60m,trace metals are mainly bound on the silicate minerals,man ganes oxide and ion oxyhydrate particles;under 60m deep,they are mainly bound on organics and silicate minerals.
