Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/21410
Full metadata record
DC FieldValueLanguage
dc.contributor.authorMatias, Manuelpt
dc.contributor.authorAlmeida, Fernandopt
dc.date.accessioned2018-01-10T17:41:00Z-
dc.date.available2018-01-10T17:41:00Z-
dc.date.issued2017-07-
dc.identifier.isbn978-953-51-3332-2pt
dc.identifier.urihttp://hdl.handle.net/10773/21410-
dc.description.abstractOften cave location requires the use of surface indirect techniques, such as geophysical methods. In particular, electrical methods have been applied to cavity exploration with evident success. However, as any other indirect methods, the use of these techniques has advantages and disadvantages. Cavities may be too small, too deep or masked by local geology to be detected. Nevertheless, indirect methods provide non-invasive, low cost and fast techniques to carry out the reconnaissance of an area where the presence of cavities is suspected. Complex geological conditions and formations anisotropy can induce strong orientational variation on ground resistivity measurements and, therefore, mask the presence of caves. Herein a field study in an old mining area demonstrates that 2D resistivity data—electrical resistivity tomography (ERT)—can be strongly affected by local anisotropy that masks the presence of cavities in ERT data modelling. In these cases, specific field strategies must be considered to overcome misleading interpretations and modelling, so that, meaningful results are obtained, uncertainty and interpretation ambiguity are reduced and the correct diagnosis of caves is accomplished.pt
dc.language.isoengpt
dc.publisherIntechpt
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147458/PTpt
dc.rightsopenAccesspor
dc.subjectExplorationpt
dc.subjectCavitypt
dc.subjectOrientationpt
dc.subjectAnisotropypt
dc.subjectERTpt
dc.titleERT and the Location of Mining Cavities in Anisotropic Media: A Field Examplept
dc.typebookPartpt
degois.publication.firstPage117pt
degois.publication.issue6pt
degois.publication.lastPage127pt
degois.publication.locationCroatiapt
degois.publication.titleCave Investigationpt
dc.identifier.doi10.5772/intechopen.68475pt
Appears in Collections:DGeo - Capítulo de livro
GeoBioTec - Capítulo de livro

Files in This Item:
File Description SizeFormat 
ERTcaveinvestigation.pdfCapitulo 62.18 MBAdobe PDFView/Open


FacebookTwitterLinkedIn
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.