Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008geoji.174..749c&link_type=abstract
Geophysical Journal International, Volume 174, Issue 1, pp. 749-757.
Astronomy and Astrophysics
Astronomy
Numerical Solutions, Plasticity, Diffusion, And Creep, Rheology And Friction Of Fault Zones, Continental Tectonics: Extensional, Dynamics And Mechanics Of Faulting, Rheology: Crust And Lithosphere
Scientific paper
The Gulf of Corinth is one of the most active extensional regions in the Mediterranean area characterized by a high rate of seismicity. However, there are still open questions concerning the role and the geometry of the numerous active faults bordering the basin, as well as the mechanisms governing the seismicity. In this paper, we use a 2-D plane strain finite element analysis to constrain the upper crust rheology by modelling the available deformation data (GPS and geomorphology). We consider a SSW-NNE cross-section of the rift cutting the main active normal faults (Aigion, West Eliki and Off-Shore faults). The models run for 650 Kyr assuming an elasto-viscoplastic rheology and 1.3 cmyr-1 horizontal extension as boundary condition (resulting from GPS data). We model the horizontal and vertical deformation rates and the accumulation of plastic strain at depth, and we compare them with GPS data, with long term uplift rates inferred from geomorphology and with the distribution of seismicity, respectively. Our modelling results demonstrate that dislocation on high-angle normal faults in a plastic crustal layer plays a key role in explaining the extremely localized strain within the Gulf of Corinth. Conversely, the contribution of structures such as the antithetic Trizonia fault or the buried hypothetical subhorizontal discontinuity are not necessary to model observed data.
Cianetti Spina
Cocco Massimo
Giunchi Carlo
Tinti Elisa
No associations
LandOfFree
Modelling deformation rates in the western Gulf of Corinth: rheological constraints does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling deformation rates in the western Gulf of Corinth: rheological constraints, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling deformation rates in the western Gulf of Corinth: rheological constraints will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1695093