Major ion chemistry of groundwaters in the Continental Terminal water table of southwestern Niger (Africa)

被引：18

作者：

Elbaz-Poulichet, F ^{[1
]}

Favreau, G ^{[1
]}

Leduc, C ^{[1
]}

Seidel, JL ^{[1
]}

机构：

[1] Univ Montpellier 2, IRD, CNRS, UMR Hydrosci,Cc MSE, F-34095 Montpellier 5, France

来源：

APPLIED GEOCHEMISTRY | 2002年 / 17卷 / 10期

关键词：

Chemical analysis - Evaporation - Groundwater - Rain;

D O I：

10.1016/S0883-2927(02)00024-0

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Numerous chemical analyses undertaken during the last 4 a in the Niamey area of the Continental Terminal groundwaters (SW Niger, Africa) reveal large seasonal variations and high NO3 content (up to 2.87 meq/l). The positive correlation between conductivity and depth to the water table indicates that the chemical change is associated with the recharge. In the shallow wells, this highly mineralised recharge reflects the rain composition, variably concentrated by evaporation processes. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1343 / 1349

页数：7

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