Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4901

Authors: Acocella, V.*
Neri, M.*
Sulpizio, R.*
Title: Dike propagation within active central volcanic edifices: constraints from Somma-Vesuvius, Etna and analogue models
Title of journal: Bulletin of Volcanology
Series/Report no.: 2/71 (2009)
Publisher: Springer-Verlag
Issue Date: 13-Feb-2009
DOI: 10.1007/s00445-008-0258-2
URL: http://www.springerlink.com/content/2576m20802j13n0w/?p=bc87b786709c4c84b86915c313799611π=5
Keywords: Dike propagation
Central volcanic edifices
Stress
Abstract: Dikes within stratovolcanoes are commonly expected to have radial patterns. However, other patterns may also be found, due to regional stresses, magmatic reservoirs and topographic variations. Here, we investigate dike patterns within volcanic edifices by studying dike and fissure complexes at Somma-Vesuvius and Etna (Italy) using analogue models. At the surface, the dikes and fissures show a radial configuration. At depths of tens to several hundreds of metres, in areas exposed by erosion, tangential and oblique dikes are also present. Analogue models indicate that dikes approaching the flanks of cones, regardless of their initial orientation, reorient to become radial (parallel to the maximum gravitational stress). This re-orientation is a significant process in shallow magma migration and may also control the emplacement of dikefed fissures reaching the lower slopes of the volcano.
Appears in Collections:Papers Published / Papers in press
04.01.03. Mantle and Core dynamics
04.04.99. General or miscellaneous
04.04.09. Structural geology
04.07.99. General or miscellaneous
04.07.05. Stress
04.07.07. Tectonics
04.08.99. General or miscellaneous
04.08.02. Experimental volcanism
04.08.06. Volcano monitoring
04.08.08. Volcanic risk
05.02.03. Volcanic eruptions
05.08.99. General or miscellaneous

Files in This Item:

File Description SizeFormatVisibility
Acocella_Neri_Sulpizio BV 2009.pdfArticle266.54 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License
Creative Commons


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA