RT Journal Article
T1 Transición dúctil-frágil en la corteza de la zona central de laPenínsula Ibérica
A1 Tejero López, Rosa
A1 Ruiz Pérez, Javier
AB Brittle-ductile transition is estimated on the basis of pore-pressure dependent frictional failure in the brittle regime, and power-Iaw steady-state creep in the ductile regime. Structure and lithological composition of the Centrallberian Peninsula Crust combined with geotherm are used to generate rheological profiles. Two brittle-ductile transitions are shown in the crust. The shallower one is located at "" 7 km under compressional stress es, and at "" 9 km under tensional stresses. The deepest is located at the  lop of the middle crust, at "" 14 km in compression and "" 17 km in tension regime. Below it, the material is ductile throughout, with a jump in strength at the Moho, which is a main rheological discontinuity. Upper part of lithospheric mantle behaviour is dominated by brittle mechanisms when the  rust thickness is30 km, but ductile mechanisms prevail in 34 km crust thickness.
PB Sociedad Geológica de España
SN 0213-683X
YR 1999
FD 1999
LK https://hdl.handle.net/20.500.14352/57670
UL https://hdl.handle.net/20.500.14352/57670
LA spa
DS Docta Complutense
RD 10 abr 2025