Hydrochemical and isotopical tracers in the lacustrine aquifer of the Cerro Prieto area, Baja California, México |
| |
| Authors: | E Portugal J lvarez BI Romero |
| |
| Institution: | aInstituto de Investigaciones Eléctricas, Reforma 113, Palmira, Cuernavaca, Mor., México 62490;bCampo Geotérmico de Cerro Prieto, CFE. Carretera Pascualitos km 26.5 B.C., México;cCentro Investigaciones Ingeniería y Ciencias Aplicadas, Universidad 1001, Chamilpa, Cuernavaca, Mor., México |
| |
| Abstract: | A series of patterns in the chemical and isotopic composition of the groundwater of the Cerro Prieto area have been recognized. These patterns were used to define four hydrochemical and isotopical zones in the area. One of these areas located at the east side was found to be the source of recharge, while another in the central part is where an older aquifer exist in lacustrine deposits. The low permeability of the area causes the aquifer to act as an aquitard, which at least is partly surrounded by an interface zone where mixing of waters occurs. Tritium and radiocarbon method revealed that the aquitard is an isolate system whose residence time is of 32 ka. |
| |
| Keywords: | Arid regions Hydrochemistry Environmental isotopes Cerro Prieto |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
