Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1994
AuthorsDi Luccio, F.* 
Pasyanos, M. E.* 
TitleCrustal and upper-mantle structure in the Eastern Mediterranean from the analysis of surface wave dispersion curves
Issue Date2007
Series/Report no./169 (2007)
DOI10.1111/j.1365-246X.2007.03332.x
URIhttp://hdl.handle.net/2122/1994
Keywordssurface waves
Eastern Mediterranean
lithosphere
Moho depth
Subject Classification04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis 
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics 
AbstractThe dispersive properties of surface waves are used to infer earth structure in the Eastern Mediterranean region. Using group velocity maps for Rayleigh and Love waves from 7-100 s, we invert for the best 1D crust and upper-mantle structure at a regular series of points. Assembling the results produces a 3D lithospheric model, along with corresponding maps of sediment and crustal thickness. A comparison of our results to other studies finds the uncertainties of the Moho estimates to be about 5 km. We find thick sediments beneath most of the Eastern Mediterranean basin, in the Hellenic subduction zone and the Cyprus arc. The Ionian Sea is more characteristic of oceanic crust than the rest of the Eastern Mediterranean region as demonstrated in particular by the crustal thickness. We also find significant crustal thinning in the Aegean Sea portion of the back-arc, particularly towards the south. Notably slower S-wave velocities are found in the upper-mantle, especially in the northern Red Sea and Dead Sea Rift, central Turkey, and along the subduction zone. The low velocities in the upper-mantle that span from North Africa to Crete, in the Libyan Sea, might be an indication of serpentinized mantle from the subducting African lithosphere. We also find evidence of a strong reverse correlation between sediment and crustal thickness which, while previously demonstrated for extensional regions, also seems applicable for this convergence zone.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
diluccio&pasyanos2007.pdf2.93 MBAdobe PDFView/Open    Request a copy
Show full item record

Page view(s)

65
checked on Apr 29, 2017

Download(s)

29
checked on Apr 29, 2017

Google ScholarTM

Check

Altmetric