Please use this identifier to cite or link to this item:
|Authors: ||D'Auria, L.*|
|Title: ||The 4D imaging of the source of ground deformation at Campi Flegrei caldera (southern Italy)|
|Title of journal: ||Journal of geophysical research - planets|
|Series/Report no.: ||/117 (2012)|
|Publisher: ||American Geophysical Union|
|Issue Date: ||2012|
|Keywords: ||Campi Flegrei|
|Abstract: ||We have applied a tomographic imaging technique to the inversion of a DInSAR
data set at Campi Flegrei caldera. This technique allowed us to determine the temporal
and spatial distribution of volumetric strain sources up to 5 km depth. Results have shown
complex spatial and temporal patterns, identifying important features that were not
noticed before. The first result is the observation of positive strain sources (expansion)
migrating upward (in 2000 and 2006). We have interpreted them as hot fluid batches
injected at the bottom of the geothermal reservoir, migrating upward and reaching the
surface. Furthermore we have identified an injection episode (in 1997), which was not
recognized before. This batch did not reach the surface and probably dissipated by
diffusion and lateral advection without producing significant ground uplift. The injection
of fluid batches does not occur at the center of the caldera, but along its borders.
The three identified injection episodes (in 1997, 2000 and 2006) occur in different points.
In 2000 and 2006, the injected fluids migrated, subsequently, toward the center of the
caldera. Our findings agrees with results of other geophysical and geochemical studies.
These results suggest a new framework for the modeling of Campi Flegrei geothermal
system and for the interpretation of data recorded by the multiparametric monitoring
networks on the caldera.|
|Appears in Collections:||04.08.06. Volcano monitoring|
Papers Published / Papers in press
Files in This Item:
|2012_DAuria.pdf||4.6 MB||Adobe PDF||only authorized users
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.