Aquifer interactions with a polluted mountain river of Nicaragua
(2008) In Hydrological Processes 22(13). p.2264-2273- Abstract
- The interactions between a stream and nearby shallow aquifers were investigated in a mountain basin being polluted by mercury released during mining in central Nicaragua. Hourly data series of water levels and temperatures were analysed using cross-correlation. Resistivity imaging was used to map the subsurface and to complement the hydrological data interpretation. The results show the complex hydrogeological conditions that characterize the region, with weathering and fractured rock as main contributors to groundwater transport. The resistivity images suggest the presence of two vertical dykes perpendicular to the stream, and zones rich in clay. The data series indicate a rapid response from the aquifers to recharge events, followed by... (More)
- The interactions between a stream and nearby shallow aquifers were investigated in a mountain basin being polluted by mercury released during mining in central Nicaragua. Hourly data series of water levels and temperatures were analysed using cross-correlation. Resistivity imaging was used to map the subsurface and to complement the hydrological data interpretation. The results show the complex hydrogeological conditions that characterize the region, with weathering and fractured rock as main contributors to groundwater transport. The resistivity images suggest the presence of two vertical dykes perpendicular to the stream, and zones rich in clay. The data series indicate a rapid response from the aquifers to recharge events, followed by immediate discharge on a yearly basis. Furthermore, alternating periods of stream infiltration and aquifer discharge were identified. This work demonstrates that surface water pollution is a threat to groundwater quality in the area. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1186928
- author
- Mendoza, Jose Alfredo LU ; Ulriksen, Peter LU ; Picado, Francisco LU and Dahlin, Torleif LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- groundwater, pollution, Nicaragua, water, surface, cross-correlation, time series analysis, resistivity imaging
- in
- Hydrological Processes
- volume
- 22
- issue
- 13
- pages
- 10 pages
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000257090200017
- scopus:46449086661
- ISSN
- 1099-1085
- DOI
- 10.1002/hyp.6822
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Ecology/Ecotoxicology (Closed 2011) (011006020), Engineering Geology (011200012)
- id
- 388416f7-f1c4-4cc6-9440-b73774346657 (old id 1186928)
- date added to LUP
- 2016-04-01 12:17:02
- date last changed
- 2022-12-05 11:16:37
@article{388416f7-f1c4-4cc6-9440-b73774346657, abstract = {{The interactions between a stream and nearby shallow aquifers were investigated in a mountain basin being polluted by mercury released during mining in central Nicaragua. Hourly data series of water levels and temperatures were analysed using cross-correlation. Resistivity imaging was used to map the subsurface and to complement the hydrological data interpretation. The results show the complex hydrogeological conditions that characterize the region, with weathering and fractured rock as main contributors to groundwater transport. The resistivity images suggest the presence of two vertical dykes perpendicular to the stream, and zones rich in clay. The data series indicate a rapid response from the aquifers to recharge events, followed by immediate discharge on a yearly basis. Furthermore, alternating periods of stream infiltration and aquifer discharge were identified. This work demonstrates that surface water pollution is a threat to groundwater quality in the area.}}, author = {{Mendoza, Jose Alfredo and Ulriksen, Peter and Picado, Francisco and Dahlin, Torleif}}, issn = {{1099-1085}}, keywords = {{groundwater; pollution; Nicaragua; water; surface; cross-correlation; time series analysis; resistivity imaging}}, language = {{eng}}, number = {{13}}, pages = {{2264--2273}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Hydrological Processes}}, title = {{Aquifer interactions with a polluted mountain river of Nicaragua}}, url = {{https://lup.lub.lu.se/search/files/2859557/4934434.pdf}}, doi = {{10.1002/hyp.6822}}, volume = {{22}}, year = {{2008}}, }