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Interpretation of gravity data to delineate structural features connected to low-temperature geothermal resources at Northeastern Portugal

2013-05Journal article Open access
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dc.contributor.authorRepresas, Patrícia
dc.contributor.authorSantos, F. A. Monteiro
dc.contributor.authorRibeiro, José
dc.contributor.authorRibeiro, Joana A.
dc.contributor.authorAlmeida, Eugénio P.
dc.contributor.authorGonçalves, Rui
dc.contributor.authorMoreira, Mário
dc.contributor.authorMendes-Victor, L. A.
dc.date.accessioned2013-11-05T19:19:01Z
dc.date.available2013-11-05T19:19:01Z
dc.date.issued2013-05
dc.description.abstractA great number of low-temperature geothermal fields occur in Northern-Portugal related to fractured rocks. The most important superficial manifestations of these hydrothermal systems appear in pull-apart tectonic basins and are strongly conditioned by the orientation of the main fault systems in the region. This work presents the interpretation of gravity gradient maps and 3D inversion model produced from a regional gravity survey. The horizontal gradients reveal a complex fault system. The obtained 3D model of density contrast puts into evidence the main fault zone in the region and the depth distribution of the granitic bodies. Their relationship with the hydrothermal systems supports the conceptual models elaborated from hydrochemical and isotopic water analyses. This work emphasizes the importance of the role of the gravity method and analysis to better understand the connection between hydrothermal systems and the fractured rock pattern and surrounding geology. (c) 2013 Elsevier B.V. All rights reserved.por
dc.identifier.citationREPRESAS, Patricia; SANTOS, F. A. Monteiro; RIBEIRO, Jose; RIBEIRO, Joana A.; ALMEIDA, Eugenio P.; GONCALVES, Rui; MOREIRO, Mario;MENDES-VICTORi, L. A. - Interpretation of gravity data to delineate structural features connected to low-temperature geothermal resources at Northeastern Portugal. Journal of Applied Geophysics. ISSN 0926-9851. Vol. 92 (2013), p. 30-38.por
dc.identifier.issn0926-9851
dc.identifier.other10.1016/j.jappgeo.2013.02.011
dc.identifier.urihttp://hdl.handle.net/10400.21/2868
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevier Science BVpor
dc.subjectGravity datapor
dc.subjectBouguer anomalypor
dc.subjectGravity derivativepor
dc.subject3D inversionpor
dc.subjectHydrothermal systempor
dc.subjectPortugalpor
dc.subjectField NE Portugalpor
dc.subjectModelpor
dc.subjectInversionpor
dc.titleInterpretation of gravity data to delineate structural features connected to low-temperature geothermal resources at Northeastern Portugalpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceAmsterdampor
oaire.citation.endPage38por
oaire.citation.startPage30por
oaire.citation.titleJournal of Applied Geophysicspor
oaire.citation.volume92por
person.familyNameMoreira
person.givenNameMário
person.identifier2793313
person.identifier.ciencia-idA214-9FF2-5978
person.identifier.orcid0000-0002-5933-3681
person.identifier.ridI-1214-2015
person.identifier.scopus-author-id26538801900
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication32d7ffa4-6692-421b-9d99-9571197bad17
relation.isAuthorOfPublication.latestForDiscovery32d7ffa4-6692-421b-9d99-9571197bad17

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