Olaiz Campos, Antonio José and Muñoz Martín, Alfonso and Vicente Muñoz, Gerardo de and Vegas, Ramón (2009) European continuous active tectonic strain–stress map. Tectonophysics . pp. 1-8. ISSN 0040-1951 (In Press)
This paper shows a new continuous strain–stress map for Europe obtained from the direct inversion of earthquake focal mechanisms calculated from the centroid tensor method. A total of 1608 focal mechanisms have been selected with several quality criteria from different catalogues (CMT Harvard, ETH, Med-Net, I.G.N. and I.A.G.) from 1973 to the present day. Values for the maximum horizontal shortening direction and brittle strain–stress regime defined by the k′ ratio (ey/ez, horizontal maximum/vertical strain) have been calculated following in Europe and Pannonian Basin the slip model of tri-axial deformation. The individual results including Dey and the shape of the active brittle strain ellipsoid have been interpolated to a final 15′ regular grid taking into account the relationship between the tectonic horizontal strain–stress value and the vertical load. Both continuous strain regime and maximum horizontal shortening (Dey) maps show a good correlation with the primary tectonic forces generated along the plate boundaries, plate kinematics and also some local perturbations related with main crustal heterogeneities and topography, as well as significant spatial variations in integrated crustal strength.
|Uncontrolled Keywords:||Strain–stress map|
|Subjects:||Sciences > Geology > Geodynamics|
|Deposited On:||25 Feb 2009 08:41|
|Last Modified:||26 Mar 2010 20:29|