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/2122/7706

Authors: D'Agostino, N.*
McKenzie, D.*
Title: Convective support of long-wavelength topography in the Apennines (Italy)
Title of journal: Terra nova
Series/Report no.: 5/11(1999)
Publisher: Wiley-Blackwell
Issue Date: Oct-1999
DOI: 10.1046/j.1365-3121.1999.00252.x
URL: http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3121.1999.00252.x/abstract
Keywords: Dynamic Topography
Gravity
Apennines
Abstract: Two different free-air gravity datasets from the Apennines have been analysed in the frequency domain to investigate the mechanisms of support of topography. At short wavelength (λ<150 km) the best fit between the observed and the calculated admittance gives a value of the elastic thickness of 3.7 km. The observed behaviour of the admittance at larger wavelengths (λ>150 km) shows that such topography is not supported by elastic stresses in the lithosphere but is dynamically supported by mantle convection. The distribution of gravity anomalies and topography suggests that the mantle is rising beneath the main topographic bulge of the Apennines and that this flow is maintained by buoyancy forces, rather than being driven by movement of the subducted slab.
Appears in Collections:Papers Published / Papers in press
04.03.03. Gravity and isostasy

Files in This Item:

File SizeFormatVisibility
dagostino_Mckenzie_terranova1999.pdf480.98 kBAdobe PDFView/Open


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