Sediment and heavy metal accumulation in the Cauvery basin

被引：19
|
作者：
Ramanathan, AL
Subramanian, V
Das, BK
机构：
[1] JAWAHARLAL NEHRU UNIV,SCH ENVIRONM SCI,NEW DELHI 110067,INDIA
[2] ANNAMALAI UNIV,DEPT GEOL,CHIDAMBARAM 608002,INDIA
[3] PANJAB UNIV,DEPT GEOL,CHANDIGARH 160014,INDIA
来源：
ENVIRONMENTAL GEOLOGY | 1996年 / 27卷 / 03期
关键词：
radiometric dates; heavy metals; anthropogenic input; Cauvery basin; remobilization;
D O I：
10.1007/BF00770427
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Eleven cores were collected from the Cauvery basin. Radiometric dates were used to determine modern sediment accumulation rates. Sediment accumulation rates ranged from 0.4 to 4 mm yr(-1). Heavy metal concentration decreases with the increase of depth. The heavy metal concentrations at certain depths are attributed to the irregular input of metals and their remobilization. Heavy metal accumulations have been computed using sediment accumulation rates, and accumulation rates show an additional anthropogenic input of metals and sediments in the recent past. Factor analysis and correlation analysis show the diverse source and accumulation mechanism influencing the metal distribution in the basin.
引用
收藏
页码：155 / 163
页数：9
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