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Geophysical characterization of the Leon-Chinandega aquifer, Nicaragua

Corriols, Marvin LU and Dahlin, Torleif LU (2008) In Hydrogeology Journal 16(2). p.349-362
Abstract
Electrical geophysical surveys in the mode of vertical electrical soundings (VES) and continuous vertical electrical soundings (CVES) were conducted in the Leon-Chinandega plains, northwestern Nicaragua, in order to obtain detailed information about the geometry of the different hydrogeological layers in the aquifer and depth to the basement. A total of 51 VES were carried out within the plains. The results show a complex structure towards the north east of the area, and the southwestern part of the plains presents a smoother stratification. The geoelectrical measurements and borehole information indicate that the basement topography is characterized by hills and deep valleys with highly variable basement depths. Fifty CVES where done in a... (More)
Electrical geophysical surveys in the mode of vertical electrical soundings (VES) and continuous vertical electrical soundings (CVES) were conducted in the Leon-Chinandega plains, northwestern Nicaragua, in order to obtain detailed information about the geometry of the different hydrogeological layers in the aquifer and depth to the basement. A total of 51 VES were carried out within the plains. The results show a complex structure towards the north east of the area, and the southwestern part of the plains presents a smoother stratification. The geoelectrical measurements and borehole information indicate that the basement topography is characterized by hills and deep valleys with highly variable basement depths. Fifty CVES where done in a smaller area in the center of the plain. The resistivity data yielded considerable information revealing the existence of two main geo-electrical units. The combined interpretation of geological and geophysical data shows an environment typical of sedimentary volcanic coastal plains. The information collected during this investigation provides valuable data for estimating the fresh-water resources of the Leon-Chinandega aquifer system and for development of a groundwater management plan. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
aquifer geometry, geophysical methods, vertical electrical soundings, coastal aquifers, Nicaragua
in
Hydrogeology Journal
volume
16
issue
2
pages
349 - 362
publisher
Springer
external identifiers
  • wos:000254184800012
  • scopus:41349116106
ISSN
1431-2174
DOI
10.1007/s10040-007-0262-1
language
English
LU publication?
yes
id
3c1daf6d-ea5e-476c-ae16-2cf1034061ae (old id 1185049)
date added to LUP
2008-09-02 15:33:47
date last changed
2017-08-13 03:33:46
@article{3c1daf6d-ea5e-476c-ae16-2cf1034061ae,
  abstract     = {Electrical geophysical surveys in the mode of vertical electrical soundings (VES) and continuous vertical electrical soundings (CVES) were conducted in the Leon-Chinandega plains, northwestern Nicaragua, in order to obtain detailed information about the geometry of the different hydrogeological layers in the aquifer and depth to the basement. A total of 51 VES were carried out within the plains. The results show a complex structure towards the north east of the area, and the southwestern part of the plains presents a smoother stratification. The geoelectrical measurements and borehole information indicate that the basement topography is characterized by hills and deep valleys with highly variable basement depths. Fifty CVES where done in a smaller area in the center of the plain. The resistivity data yielded considerable information revealing the existence of two main geo-electrical units. The combined interpretation of geological and geophysical data shows an environment typical of sedimentary volcanic coastal plains. The information collected during this investigation provides valuable data for estimating the fresh-water resources of the Leon-Chinandega aquifer system and for development of a groundwater management plan.},
  author       = {Corriols, Marvin and Dahlin, Torleif},
  issn         = {1431-2174},
  keyword      = {aquifer geometry,geophysical methods,vertical electrical soundings,coastal aquifers,Nicaragua},
  language     = {eng},
  number       = {2},
  pages        = {349--362},
  publisher    = {Springer},
  series       = {Hydrogeology Journal},
  title        = {Geophysical characterization of the Leon-Chinandega aquifer, Nicaragua},
  url          = {http://dx.doi.org/10.1007/s10040-007-0262-1},
  volume       = {16},
  year         = {2008},
}