English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/103244
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

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

AuthorsGottsmann, Joachim ; Camacho, Antonio G. ; Tiampo, Kristy F.; Fernández Torres, José
KeywordsCaldera
Campi Flegrei
Geodesy
Gravity
Hydrothermal system
Magma
Issue DateDec-2006
PublisherAmerican Geophysical Union
CitationGeophysical Journal International, 167(3): 1089–1096 (2006)
AbstractWe 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.
Publisher version (URL)http://dx.doi.org/10.1111/j.1365-246X.2006.03157.x
URIhttp://hdl.handle.net/10261/103244
DOI10.1111/j.1365-246X.2006.03157.x
Appears in Collections:(IAG) Artículos
Files in This Item:
File Description SizeFormat 
GJI_2006_167_1089.pdf368,61 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.