Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?

We present an evaluation of residual vertical gravity–height change gradients obtained from gravimetric and elevation data between 1982 and 2000 at the Campi Flegrei caldera (CFc) in Italy. Spatial and temporal variations in the gradients are indicative of multiple causative sources during unrest, i...

Descripción completa

Detalles Bibliográficos
Autores: Gottsmann, Joachim, Camacho, Antonio G., Tiampo, Kristy F., Fernández Torres, José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/103244
Acceso en línea:http://hdl.handle.net/10261/103244
Access Level:acceso abierto
Palabra clave:Caldera
Campi Flegrei
Geodesy
Gravity
Hydrothermal system
Magma
id ES_35f915d01b1883bdeebb534e931e52cf
oai_identifier_str oai:digital.csic.es:10261/103244
network_acronym_str ES
network_name_str España
repository_id_str
spelling Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?Gottsmann, JoachimCamacho, Antonio G.Tiampo, Kristy F.Fernández Torres, JoséCalderaCampi FlegreiGeodesyGravityHydrothermal systemMagmaWe present an evaluation of residual vertical gravity–height change gradients obtained from gravimetric and elevation data between 1982 and 2000 at the Campi Flegrei caldera (CFc) in Italy. Spatial and temporal variations in the gradients are indicative of multiple causative sources during unrest, in particular for ground subsidence from 1988 onwards. Supported by results obtained from time-series inversion for the period 1988–2000 using a random search approach of a purely elastic earth model and a genetic algorithm accounting for elastic-gravitational effects, we propose a centre of dilatation undergoing predominantly pressure changes yet negligible mass changes as the dominant cause for caldera deflation. Mass fluctuations in randomly active secondary sources along the periphery of the CFc can be best explained by dynamic changes along the caldera boundary (ring) faults.Peer reviewedAmerican Geophysical UnionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201420142006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/103244reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1365-246X.2006.03157.xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1032442026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
title Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
spellingShingle Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
Gottsmann, Joachim
Caldera
Campi Flegrei
Geodesy
Gravity
Hydrothermal system
Magma
title_short Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
title_full Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
title_fullStr Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
title_full_unstemmed Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
title_sort Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): a case for source multiplicity during unrest?
dc.creator.none.fl_str_mv Gottsmann, Joachim
Camacho, Antonio G.
Tiampo, Kristy F.
Fernández Torres, José
author Gottsmann, Joachim
author_facet Gottsmann, Joachim
Camacho, Antonio G.
Tiampo, Kristy F.
Fernández Torres, José
author_role author
author2 Camacho, Antonio G.
Tiampo, Kristy F.
Fernández Torres, José
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Caldera
Campi Flegrei
Geodesy
Gravity
Hydrothermal system
Magma
topic Caldera
Campi Flegrei
Geodesy
Gravity
Hydrothermal system
Magma
description We present an evaluation of residual vertical gravity–height change gradients obtained from gravimetric and elevation data between 1982 and 2000 at the Campi Flegrei caldera (CFc) in Italy. Spatial and temporal variations in the gradients are indicative of multiple causative sources during unrest, in particular for ground subsidence from 1988 onwards. Supported by results obtained from time-series inversion for the period 1988–2000 using a random search approach of a purely elastic earth model and a genetic algorithm accounting for elastic-gravitational effects, we propose a centre of dilatation undergoing predominantly pressure changes yet negligible mass changes as the dominant cause for caldera deflation. Mass fluctuations in randomly active secondary sources along the periphery of the CFc can be best explained by dynamic changes along the caldera boundary (ring) faults.
publishDate 2006
dc.date.none.fl_str_mv 2006
2014
2014
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/10261/103244
url http://hdl.handle.net/10261/103244
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1365-246X.2006.03157.x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical 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
_version_ 1869405928763162624
score 15,811543

Similares en LA Referencia