Quantitative estimations of aquifer properties from resistivity in the Bolivian highlands
(2019) In H2Open Journal 2(1). p.113-124- Abstract
- Resistivity data constitute the largest part of the available information to assess the hydrogeological characteristics of the aquifer system near Oruro, in the central part of the Bolivian Altiplano. Two aquifers are part of this system; top unconsolidated sediments storing fresh water in their granular voids, overlying fractured hard rock formations where saline water was detected in connection to some faults. This study proposes an indirect and cost-effective way to estimate aquifer hydraulic properties for the groundwater management in the region. Hydraulic conductivity and transmissivity in the top aquifer were estimated using an empirical linear relationship between hydraulic conductivity and resistivity. This latter parameter, as... (More)
- Resistivity data constitute the largest part of the available information to assess the hydrogeological characteristics of the aquifer system near Oruro, in the central part of the Bolivian Altiplano. Two aquifers are part of this system; top unconsolidated sediments storing fresh water in their granular voids, overlying fractured hard rock formations where saline water was detected in connection to some faults. This study proposes an indirect and cost-effective way to estimate aquifer hydraulic properties for the groundwater management in the region. Hydraulic conductivity and transmissivity in the top aquifer were estimated using an empirical linear relationship between hydraulic conductivity and resistivity. This latter parameter, as well as the aquifer thickness, were obtained from the inverted models corresponding to the geoelectrical tests performed in the study area (electrical resistivity tomography, transient electromagnetic soundings and vertical electrical soundings). The highest estimated transmissivity values are ∼4.0 × 10−2 m2/s located in the centre of the study area, the lowest values are ∼3.4 × 10−3 m2/s, located around thermal intrusions to the south and where the top of the bedrock is shallow (∼20 m depth) to the west. The methodology presented in this study makes wider use of resistivity measurements to identify promising groundwater production sites. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e3143aa6-df67-4c2f-8215-91f1460dd61d
- author
- Gomez Lopez, Etzar LU ; Broman, Viktor ; Dahlin, Torleif LU ; Barmen, Gerhard LU and Rosberg, Jan-Erik LU
- organization
- publishing date
- 2019-05-08
- type
- Contribution to journal
- publication status
- published
- subject
- in
- H2Open Journal
- volume
- 2
- issue
- 1
- pages
- 12 pages
- publisher
- IWA Publishing
- external identifiers
-
- scopus:85084567711
- ISSN
- 2616-6518
- DOI
- 10.2166/h2oj.2019.007
- language
- English
- LU publication?
- yes
- id
- e3143aa6-df67-4c2f-8215-91f1460dd61d
- date added to LUP
- 2019-09-23 11:50:02
- date last changed
- 2022-04-18 17:58:24
@article{e3143aa6-df67-4c2f-8215-91f1460dd61d,
abstract = {{Resistivity data constitute the largest part of the available information to assess the hydrogeological characteristics of the aquifer system near Oruro, in the central part of the Bolivian Altiplano. Two aquifers are part of this system; top unconsolidated sediments storing fresh water in their granular voids, overlying fractured hard rock formations where saline water was detected in connection to some faults. This study proposes an indirect and cost-effective way to estimate aquifer hydraulic properties for the groundwater management in the region. Hydraulic conductivity and transmissivity in the top aquifer were estimated using an empirical linear relationship between hydraulic conductivity and resistivity. This latter parameter, as well as the aquifer thickness, were obtained from the inverted models corresponding to the geoelectrical tests performed in the study area (electrical resistivity tomography, transient electromagnetic soundings and vertical electrical soundings). The highest estimated transmissivity values are ∼4.0 × 10−2 m2/s located in the centre of the study area, the lowest values are ∼3.4 × 10−3 m2/s, located around thermal intrusions to the south and where the top of the bedrock is shallow (∼20 m depth) to the west. The methodology presented in this study makes wider use of resistivity measurements to identify promising groundwater production sites.}},
author = {{Gomez Lopez, Etzar and Broman, Viktor and Dahlin, Torleif and Barmen, Gerhard and Rosberg, Jan-Erik}},
issn = {{2616-6518}},
language = {{eng}},
month = {{05}},
number = {{1}},
pages = {{113--124}},
publisher = {{IWA Publishing}},
series = {{H2Open Journal}},
title = {{Quantitative estimations of aquifer properties from resistivity in the Bolivian highlands}},
url = {{http://dx.doi.org/10.2166/h2oj.2019.007}},
doi = {{10.2166/h2oj.2019.007}},
volume = {{2}},
year = {{2019}},
}