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dc.contributor.authorHussain, Yawar
dc.contributor.authorUagoda, Rogerio
dc.contributor.authorBorges, Welitom
dc.contributor.authorNunes, José
dc.contributor.authorHamza, Omar
dc.contributor.authorCondori, Cristobal
dc.contributor.authorAslam, Khurram
dc.contributor.authorDou, Jie
dc.contributor.authorCárdenas-Soto, Martín
dc.date.accessioned2020-08-17T10:28:33Z
dc.date.available2020-08-17T10:28:33Z
dc.date.issued2020-08-14
dc.identifier.citationHussain, Y., Uagoda, R., Borges, W., Nunes, J.G.D.S., Hamza, O., Condori Quispe, C., Aslam, K., Dou, J. and Cárdenas Soto, M., (2020). 'The potential use of geophysical methods to identify cavities, sinkholes and pathways for water infiltration: a case study from Mambaí, Brazil.' Water, 12(8), pp. 1-19.en_US
dc.identifier.doi10.3390/w12082289
dc.identifier.urihttp://hdl.handle.net/10545/625094
dc.description.abstractThe use of geophysical characterization of karst systems can provide an economical and non-invasive alternative for extracting information about cavities, sinkholes, pathways for water infiltration as well as the degree of karstification of underlying carbonate rocks. In the present study, three geophysical techniques, namely, Ground Penetrating Radar (GPR), Electrical Resistivity Tomography (ERT) and Very Low Frequency Electromagnetic (VLFEM) methods were applied at three different locations in relation to fluvial karst, which is listed as an environmentally sensitive area in Rio Vermelho, Mambaí, Goiás, Brazil. In the data acquisition phase, the GPR, direct-current (DC) resistivity and VLFEM profiles were obtained at the three locations in the area. Data were analyzed using commonly adopted processing workflows. The GPR results showed a well-defined lithology of the site based on the amplitude of the signal and radar typologies. On the other hand, the inverted resistivity cross-sections showed a three-layered stratigraphy, pathways of water infiltration and the weathered structures in carbonate (Bambui group). The interpretation of VLFEM as contours of current density resulted from Fraser and Karous–Hjelt filters, indicated the presence of conductive structures (high apparent current density) that might be linked to the weathered carbonate and other conductive and resistive anomalies associated with the water-filled and dry cavities (cave), respectively. The results encourage the integrated application of geophysical techniques such as the reconnaissance for further detailed characterization of the karst areas.en_US
dc.description.sponsorshipThis research was funded by TCCE 01/2018—Vale/ICMbio, PROCESS Nº: 02667.000110/2017-10 “Susceptibilidade, Hidrologia e Geomorfologia Cárstica Aplicadas à Conservação do Patrimônio Espeleológico da Área de Proteção Ambiental das Nascentes do Rio Vermelho.” DOU N.99 SEÇÃO 3 de 24/05/2018.en_US
dc.language.isoenen_US
dc.publisherMDPI AGen_US
dc.relation.urlhttps://www.mdpi.com/2073-4441/12/8/2289en_US
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectGeography, Planning and Developmenten_US
dc.subjectAquatic Scienceen_US
dc.subjectBiochemistryen_US
dc.subjectWater Science and Technologyen_US
dc.subjectTarimba caveen_US
dc.subjectERT; GPR; VLFEMen_US
dc.titleThe potential use of geophysical methods to identify cavities, sinkholes and pathways for water infiltrationen_US
dc.typeArticleen_US
dc.identifier.eissn2073-4441
dc.contributor.departmentClemson University (USA)en_US
dc.contributor.departmentUniversity of Brasilia (Brazil)en_US
dc.contributor.departmentUniversity of Derby (UK)en_US
dc.contributor.departmentUniversity of Oregon (USA)en_US
dc.contributor.departmentChina University of Geosciencesen_US
dc.contributor.departmentNagaoka University of Technology (Japan)en_US
dc.contributor.departmentNational Autonomous University of Mexicoen_US
dc.identifier.journalWateren_US
dc.identifier.piiw12082289
dc.source.journaltitleWater
dc.source.volume12
dc.source.issue8
dc.source.beginpage2289
dcterms.dateAccepted2020-08-06
refterms.dateFOA2020-08-17T10:28:33Z
dc.author.detail784461en_US


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