Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2575
AuthorsChiarabba, C.* 
Moretti, M.* 
TitleAn insight into the unrest phenomena at the campi flegri caldera from Vp and Vp/Vs tomography
Issue Date2006
DOI10.1111/j.1365-3121.2006.00701.x
URIhttp://hdl.handle.net/2122/2575
Keywordstomography
Campi Flegrei
Subject Classification04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
AbstractHigh resolution Vp and Vp/Vs tomography of the Campi Flegrei caldera is obtained using active and passive seismic data. We find a continuous ring of high Vp anomaly that defines the caldera rim associated to the last collapse. A sharp Vp/Vs decrease is observed between 2 and 4 km depth, suggesting the absence of magmatic fluids and the presence of rock volumes with over-pressured gas within the source region of uplift. Atmospheric water penetrating within the caldera and deep CO2 fluids are presumably heated by a magmatic body located at depth greater than 4 km nested within the limestone layer. Along the fractures bordering the shallow high Vp rim, deep gas and CO2 fluids up-raise and are released in the Pozzuoli solfatara. We hypothesize that the past unrest episode is more likely due to pressure changes within the shallow geothermal reservoir located at the top of the magma intrusion.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
1226.pdf1.58 MBAdobe PDFView/Open
Show full item record

Page view(s)

74
Last Week
0
Last month
checked on Jun 25, 2017

Download(s)

23
checked on Jun 25, 2017

Google ScholarTM

Check

Altmetric