Geophysical and hydrogeological characterization of the subbasins of Apan and Tochac (Mexico basin)
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
1997
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| author | J. O. Campos Enríquez |
| author_facet | J. O. Campos Enríquez |
| contents | Geophysical and hydrogeological characterization of the subbasins of Apan and Tochac (Mexico basin) J. O. Campos Enríquez R. Huizar Álvarez J. Lermo Samaniego O. Delgado Rodríguez A. Huidobro González Ciencias de la Tierra sub Mexico basin groundwater quality hydrogeological system basins of Apan and Tochac The main features of the hydrogeologic system in the Apan and Tochac sub-basins of the basin ofMexico are described from gravity, magnetic, resistivity, hydrogeological, and geochemical data. Bothsub-basins have about 600 m of volcano-sedimentary infill, and are separated by the NE-SW trendingApan range. Gravity and magnetic data indicate that the Apan range is emplaced along a major NE-SWtrending fault along the extension of a regional lineament joining the Tlaloc and Telapon volcanoes. TheApan sub-basin has low-level seismic activity. A correlation with borehole data confirms a model of the hydrogeologic system which includes intergranular, mixed and fissured aquifers with transmissivitiesbetween 5.7 x 10-3 m2/sec and 1.1 x 10-1 m2/sec, and permeability around 4.0 x 10-4. The fissuredaquifer is the recharge area, while the other two aquifers constitute a semi-confined aquifer whose onlydischarge comes from well pumping. The unsaturated zone is 60 m thick and the potentiometric surfacefluctuates 0.30 m yearly. However, in places no fluctuations were observed. The thickest portion of theaquifer, as delimited by vertical electric soundings and boreholes, is in the southern portion of theTochac sub-basin. Resistivity values and hydrogeochemical studies indicate the presence at depth ofgood quality, slightly mineralized water. 1997 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56836401 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.36 |
| format | Artículo científico |
| id | redalyc_56836401 |
| institution | Redalyc |
| language | en |
| publishDate | 1997 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Geophysical and hydrogeological characterization of the subbasins of Apan and Tochac (Mexico basin) J. O. Campos Enríquez Ciencias de la Tierra sub Mexico basin groundwater quality hydrogeological system basins of Apan and Tochac Geophysical and hydrogeological characterization of the subbasins of Apan and Tochac (Mexico basin) J. O. Campos Enríquez R. Huizar Álvarez J. Lermo Samaniego O. Delgado Rodríguez A. Huidobro González Ciencias de la Tierra sub Mexico basin groundwater quality hydrogeological system basins of Apan and Tochac The main features of the hydrogeologic system in the Apan and Tochac sub-basins of the basin ofMexico are described from gravity, magnetic, resistivity, hydrogeological, and geochemical data. Bothsub-basins have about 600 m of volcano-sedimentary infill, and are separated by the NE-SW trendingApan range. Gravity and magnetic data indicate that the Apan range is emplaced along a major NE-SWtrending fault along the extension of a regional lineament joining the Tlaloc and Telapon volcanoes. TheApan sub-basin has low-level seismic activity. A correlation with borehole data confirms a model of the hydrogeologic system which includes intergranular, mixed and fissured aquifers with transmissivitiesbetween 5.7 x 10-3 m2/sec and 1.1 x 10-1 m2/sec, and permeability around 4.0 x 10-4. The fissuredaquifer is the recharge area, while the other two aquifers constitute a semi-confined aquifer whose onlydischarge comes from well pumping. The unsaturated zone is 60 m thick and the potentiometric surfacefluctuates 0.30 m yearly. However, in places no fluctuations were observed. The thickest portion of theaquifer, as delimited by vertical electric soundings and boreholes, is in the southern portion of theTochac sub-basin. Resistivity values and hydrogeochemical studies indicate the presence at depth ofgood quality, slightly mineralized water. 1997 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56836401 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.36 |
| title | Geophysical and hydrogeological characterization of the subbasins of Apan and Tochac (Mexico basin) |
| topic | Ciencias de la Tierra sub Mexico basin groundwater quality hydrogeological system basins of Apan and Tochac |
| url | https://www.redalyc.org/articulo.oa?id=56836401 |