| Élément Dublin Core | Valeur | Langue |
|---|
| dc.contributor.author | Hussain, Yawar | - |
| dc.contributor.author | Uagoda, Rogério Elias Soares | - |
| dc.contributor.author | Borges, Welitom Rodrigues | - |
| dc.contributor.author | Nunes, José Gustavo da Silva | - |
| dc.contributor.author | Hamza, Omar | - |
| dc.contributor.author | Condori, Cristobal | - |
| dc.contributor.author | Aslam, Khurram | - |
| dc.contributor.author | Dou, Jie | - |
| dc.contributor.author | Cárdenas-Soto, Martín | - |
| dc.date.accessioned | 2021-06-16T16:17:12Z | - |
| dc.date.available | 2021-06-16T16:17:12Z | - |
| dc.date.issued | 2020-08-14 | - |
| dc.identifier.citation | HUSSAIN, Yawar et al. The potential use of geophysical methods to identify cavities, sinkholes and pathways for water infiltration. Water, v. 12, n. 8, 2289, 2020. DOI: https://doi.org/10.3390/w12082289. Disponível em: https://www.mdpi.com/2073-4441/12/8/2289. Acesso em: 16 jun. 2021. | pt_BR |
| dc.identifier.uri | https://repositorio.unb.br/handle/10482/41176 | - |
| dc.language.iso | Português | pt_BR |
| dc.publisher | MDPI | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | The potential use of geophysical methods to identify cavities, sinkholes and pathways for water infiltration | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Geofísica - metodologia | pt_BR |
| dc.subject.keyword | Infiltração | pt_BR |
| dc.rights.license | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | pt_BR |
| dc.identifier.doi | https://doi.org/10.3390/w12082289 | pt_BR |
| dc.description.abstract1 | The 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. | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-4155-6764 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-9448-1313 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-5158-1947 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-6184-4085 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-5048-0423 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0001-5930-199X | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-6586-469X | pt_BR |
| Collection(s) : | Artigos publicados em periódicos e afins
|
