期刊
APPLIED GEOCHEMISTRY
卷 17, 期 10, 页码 1343-1349出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0883-2927(02)00024-0
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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.
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