3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)

A high-resolution seismic tomography survey was acquired to obtain a full 3-D P-wave seismic velocity image in the Záncara river basin (eastern Spain). The study area consists of lutites and gypsum from a Neogene sedimentary sequence. A regular and dense grid of 676 shots and 1200 receivers was used...

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Autores: Martí, David, Marzán, Ignacio, Sachsenhauser, Jana, Alvarez-Marrón, Joaquina, Ruiz Fernández, Mario, Torné, Montserrat, Mendes, Manuela, Carbonell, Ramón
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/175336
Acceso en línea:http://hdl.handle.net/10261/175336
Access Level:acceso abierto
Palabra clave:Lithology
Seismic prospecting
Seismic waves
Structural geology
Underground structures
Velocity distribution
Watersheds
Well logging
seismology
Geophysical measurements
High resolution seismic
Sedimentary sequence
Seismic travel time
Seismic velocities
Tomographic inversion
Travel time tomography
Wedge-shaped structure
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spelling 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)Martí, DavidMarzán, IgnacioSachsenhauser, JanaAlvarez-Marrón, JoaquinaRuiz Fernández, MarioTorné, MontserratMendes, ManuelaCarbonell, RamónLithologySeismic prospectingSeismic wavesStructural geologyUnderground structuresVelocity distributionWatershedsWell loggingseismologyGeophysical measurementsHigh resolution seismicSedimentary sequenceSeismic travel timeSeismic velocitiesTomographic inversionTravel time tomographyWedge-shaped structureA high-resolution seismic tomography survey was acquired to obtain a full 3-D P-wave seismic velocity image in the Záncara river basin (eastern Spain). The study area consists of lutites and gypsum from a Neogene sedimentary sequence. A regular and dense grid of 676 shots and 1200 receivers was used to image a 500 m×500 m area of the shallow subsurface. A 240-channel system and a seismic source, consisting of an accelerated weight drop, were used in the acquisition. Half a million travel-time picks were inverted to provide the 3-D seismic velocity distribution up to 120 m depth. The project also targeted the geometry of the underground structure with emphasis on defining the lithological contacts but also the presence of cavities and fault or fractures. An extensive drilling campaign provided uniquely tight constraints on the lithology; these included core samples and wireline geophysical measurements. The analysis of the well log data enabled the accurate definition of the lithological boundaries and provided an estimate of the seismic velocity ranges associated with each lithology. The final joint interpreted image reveals a wedge-shaped structure consisting of four different lithological units. This study features the necessary key elements to test the travel time tomographic inversion approach for the high-resolution characterization of the shallow subsurface. In this methodological validation test, travel-time tomography demonstrated to be a powerful tool with a relatively high capacity for imaging in detail the lithological contrasts of evaporitic sequences located at very shallow depths, when integrated with additional geological and geophysical data.This work has been supported by projects (ref: CGL2014-56548-P, CGL2016-81964-REDE) supported by the Spanish Ministry of Science and Innovation, 2017 SGR 1022 Gen-eralitat de Catalunya, and by ENRESA.Peer reviewedEuropean Geosciences UnionMinisterio de Ciencia e Innovación (España)Generalitat de CatalunyaAlvarez-Marrón, Joaquina [0000-0002-0608-1783]Ruiz Fernández, Mario [0000-0002-0924-8980]Martí, David [0000-0002-5502-921X]Torné, Montserrat [0000-0001-6585-4283]Carbonell, Ramón [0000-0003-2019-1214]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/175336reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-56548-Phttps://doi.org/10.5194/se-10-177-2019Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1753362026-05-22T06:33:51Z
dc.title.none.fl_str_mv 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
title 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
spellingShingle 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
Martí, David
Lithology
Seismic prospecting
Seismic waves
Structural geology
Underground structures
Velocity distribution
Watersheds
Well logging
seismology
Geophysical measurements
High resolution seismic
Sedimentary sequence
Seismic travel time
Seismic velocities
Tomographic inversion
Travel time tomography
Wedge-shaped structure
title_short 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
title_full 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
title_fullStr 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
title_full_unstemmed 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
title_sort 3-D seismic travel-time tomography validation of a detailed subsurface model: A case study of the Záncara river basin (Cuenca, Spain)
dc.creator.none.fl_str_mv Martí, David
Marzán, Ignacio
Sachsenhauser, Jana
Alvarez-Marrón, Joaquina
Ruiz Fernández, Mario
Torné, Montserrat
Mendes, Manuela
Carbonell, Ramón
author Martí, David
author_facet Martí, David
Marzán, Ignacio
Sachsenhauser, Jana
Alvarez-Marrón, Joaquina
Ruiz Fernández, Mario
Torné, Montserrat
Mendes, Manuela
Carbonell, Ramón
author_role author
author2 Marzán, Ignacio
Sachsenhauser, Jana
Alvarez-Marrón, Joaquina
Ruiz Fernández, Mario
Torné, Montserrat
Mendes, Manuela
Carbonell, Ramón
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Generalitat de Catalunya
Alvarez-Marrón, Joaquina [0000-0002-0608-1783]
Ruiz Fernández, Mario [0000-0002-0924-8980]
Martí, David [0000-0002-5502-921X]
Torné, Montserrat [0000-0001-6585-4283]
Carbonell, Ramón [0000-0003-2019-1214]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Lithology
Seismic prospecting
Seismic waves
Structural geology
Underground structures
Velocity distribution
Watersheds
Well logging
seismology
Geophysical measurements
High resolution seismic
Sedimentary sequence
Seismic travel time
Seismic velocities
Tomographic inversion
Travel time tomography
Wedge-shaped structure
topic Lithology
Seismic prospecting
Seismic waves
Structural geology
Underground structures
Velocity distribution
Watersheds
Well logging
seismology
Geophysical measurements
High resolution seismic
Sedimentary sequence
Seismic travel time
Seismic velocities
Tomographic inversion
Travel time tomography
Wedge-shaped structure
description A high-resolution seismic tomography survey was acquired to obtain a full 3-D P-wave seismic velocity image in the Záncara river basin (eastern Spain). The study area consists of lutites and gypsum from a Neogene sedimentary sequence. A regular and dense grid of 676 shots and 1200 receivers was used to image a 500 m×500 m area of the shallow subsurface. A 240-channel system and a seismic source, consisting of an accelerated weight drop, were used in the acquisition. Half a million travel-time picks were inverted to provide the 3-D seismic velocity distribution up to 120 m depth. The project also targeted the geometry of the underground structure with emphasis on defining the lithological contacts but also the presence of cavities and fault or fractures. An extensive drilling campaign provided uniquely tight constraints on the lithology; these included core samples and wireline geophysical measurements. The analysis of the well log data enabled the accurate definition of the lithological boundaries and provided an estimate of the seismic velocity ranges associated with each lithology. The final joint interpreted image reveals a wedge-shaped structure consisting of four different lithological units. This study features the necessary key elements to test the travel time tomographic inversion approach for the high-resolution characterization of the shallow subsurface. In this methodological validation test, travel-time tomography demonstrated to be a powerful tool with a relatively high capacity for imaging in detail the lithological contrasts of evaporitic sequences located at very shallow depths, when integrated with additional geological and geophysical data.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/175336
url http://hdl.handle.net/10261/175336
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-56548-P
https://doi.org/10.5194/se-10-177-2019
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv European Geosciences Union
publisher.none.fl_str_mv European Geosciences Union
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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