Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/7145 |
Resumo: | The rising demand for water and the contamination of shallow water table aquifers has led authorities in NE Morocco to look for deeper groundwater resources in the Triffa Plain, namely in Lower Jurassic (Lias) dolomitic limestones. The liassic aquifer is of strategic importance for the development of the region, however, its hydrodynamic behaviour is poorly understood due to lack of hydrogeological data and block structure. This article presents a first effort towards understanding the structure and hydraulic behaviour of the aquifer. Exploration borehole data and results from geophysical campaigns were integrated into a GIS environment to build a preliminary model of the aquifer structure. The aquifer behaves as an unconfined aquifer in the northern part of the Béni Snassen Mountains (the recharge area), but as it dips to the north, it becomes confined by marls and shales of the Middle/Upper Jurassic. Even though piezometric level data are scarce, a tentative piezometric map was produced. Three blocks separated by NW–SE trending faults in a horst and graben structure, with distinct flow behaviours were identified: Berkane, Fezouane and Sidi Rahmoun blocks. Those blocks also show differences in hydraulic conductivity distribution. As a result of the reaction with the dolomitic limestones, the groundwater is of calcium-magnesium bicarbonate type. Groundwater temperature as measured in springs ranges from 29 C to 37 C in springs and constitutes a potential low enthalpy geothermal resource. |
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Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE MoroccoLias carbonate aquiferGeological structureResource assessmentNE MoroccoThe rising demand for water and the contamination of shallow water table aquifers has led authorities in NE Morocco to look for deeper groundwater resources in the Triffa Plain, namely in Lower Jurassic (Lias) dolomitic limestones. The liassic aquifer is of strategic importance for the development of the region, however, its hydrodynamic behaviour is poorly understood due to lack of hydrogeological data and block structure. This article presents a first effort towards understanding the structure and hydraulic behaviour of the aquifer. Exploration borehole data and results from geophysical campaigns were integrated into a GIS environment to build a preliminary model of the aquifer structure. The aquifer behaves as an unconfined aquifer in the northern part of the Béni Snassen Mountains (the recharge area), but as it dips to the north, it becomes confined by marls and shales of the Middle/Upper Jurassic. Even though piezometric level data are scarce, a tentative piezometric map was produced. Three blocks separated by NW–SE trending faults in a horst and graben structure, with distinct flow behaviours were identified: Berkane, Fezouane and Sidi Rahmoun blocks. Those blocks also show differences in hydraulic conductivity distribution. As a result of the reaction with the dolomitic limestones, the groundwater is of calcium-magnesium bicarbonate type. Groundwater temperature as measured in springs ranges from 29 C to 37 C in springs and constitutes a potential low enthalpy geothermal resource.Elsevier2013-01-09T10:57:24Z2013-01-092012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/7145http://hdl.handle.net/10174/7145eng24–32Journal of African Earth Sciences73–74ndndndndndndndnd404Sardinha, JoãoCarneiro, JúlioZarhloule, YassineBarkaoui, Alae EddineCorreia, AntónioBoughriba, MimounRimi, AbdelkrimHouadi, B. Elinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:47:07Zoai:dspace.uevora.pt:10174/7145Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:01:44.897529Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
title |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
spellingShingle |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco Sardinha, João Lias carbonate aquifer Geological structure Resource assessment NE Morocco |
title_short |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
title_full |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
title_fullStr |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
title_full_unstemmed |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
title_sort |
Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco |
author |
Sardinha, João |
author_facet |
Sardinha, João Carneiro, Júlio Zarhloule, Yassine Barkaoui, Alae Eddine Correia, António Boughriba, Mimoun Rimi, Abdelkrim Houadi, B. El |
author_role |
author |
author2 |
Carneiro, Júlio Zarhloule, Yassine Barkaoui, Alae Eddine Correia, António Boughriba, Mimoun Rimi, Abdelkrim Houadi, B. El |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Sardinha, João Carneiro, Júlio Zarhloule, Yassine Barkaoui, Alae Eddine Correia, António Boughriba, Mimoun Rimi, Abdelkrim Houadi, B. El |
dc.subject.por.fl_str_mv |
Lias carbonate aquifer Geological structure Resource assessment NE Morocco |
topic |
Lias carbonate aquifer Geological structure Resource assessment NE Morocco |
description |
The rising demand for water and the contamination of shallow water table aquifers has led authorities in NE Morocco to look for deeper groundwater resources in the Triffa Plain, namely in Lower Jurassic (Lias) dolomitic limestones. The liassic aquifer is of strategic importance for the development of the region, however, its hydrodynamic behaviour is poorly understood due to lack of hydrogeological data and block structure. This article presents a first effort towards understanding the structure and hydraulic behaviour of the aquifer. Exploration borehole data and results from geophysical campaigns were integrated into a GIS environment to build a preliminary model of the aquifer structure. The aquifer behaves as an unconfined aquifer in the northern part of the Béni Snassen Mountains (the recharge area), but as it dips to the north, it becomes confined by marls and shales of the Middle/Upper Jurassic. Even though piezometric level data are scarce, a tentative piezometric map was produced. Three blocks separated by NW–SE trending faults in a horst and graben structure, with distinct flow behaviours were identified: Berkane, Fezouane and Sidi Rahmoun blocks. Those blocks also show differences in hydraulic conductivity distribution. As a result of the reaction with the dolomitic limestones, the groundwater is of calcium-magnesium bicarbonate type. Groundwater temperature as measured in springs ranges from 29 C to 37 C in springs and constitutes a potential low enthalpy geothermal resource. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01T00:00:00Z 2013-01-09T10:57:24Z 2013-01-09 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/7145 http://hdl.handle.net/10174/7145 |
url |
http://hdl.handle.net/10174/7145 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
24–32 Journal of African Earth Sciences 73–74 nd nd nd nd nd nd nd nd 404 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136500714045440 |