Long-term thermo-tectonic evolution of the Montes de Toledo area (Central Hercynian Belt, Spain): constraints from apatite fission-track analysis

Thermal history of the Sabero Coalfield (Southern Cantabrian Zone, NW Spain) as revealed by apatite fission track analyses from tonstein horizons: implications for timing of coalification

“…3), which is consistent with the Cainozoic uplift of the Cantabrian Mountains and the last phase of erosion (Alonso et al 1995). The enhanced exhumation in the last 20-40 Ma is also supported by the cooling pattern in other parts of the Variscan basement (Barbero et al 2001(Barbero et al , 2002(Barbero et al , 2005.…”

Mesozoic thermal history of the Prebetic continental margin (southern Spain): Constraints from apatite fission-track analysis

“…This is also observed when studying the thermal evolution of certain parts of the Hercynian basement such as the Montes de Toledo area, Central Hercynian zone (Barbero et al, 2005). The thermal evolution of the Hercynian crust during the Triassic could result from a combination of major thermomechanical processes such as (a) the relaxation of the thermal anomaly related to the end of the Hercynian cycle, (b) the progressive erosion of the Hercynian basement and (c) the thermal subsidence related to the rifting of the Bay of Biscay (Hanne et al, 2003;Barbero et al, 2005), the erosion factor being dominant.…”

“…It is noteworthy that the Jurassic heating event is also visible in certain parts of the Hercynian basement (Barbero et al, 2005), which therefore evidences an evolution of plate scale and underlines the importance of the far-field effect during the rifting process.…”

“…Results from a transverse section through the southern limit of the Hercynian basement indicate that, in the West Iberian region, temperatures within the apatite PAZ cooled rapidly at 112 and 60 Ma, but in the Central Iberian Zone cooling appears to have very slowly crossed the apatite PAZ during PermoTriassic times (Stapel, 1999) as is also the case of other parts of the Hercynian basement in the Central Iberian Zone (Barbero et al, 2005) (Fig. 7).…”

Large-scale distributed deformation controlled topography along the western Africa–Eurasia limit: Tectonic constraints

“…This compressive regime led eventually to collision in the IberiaEurope interface giving rise to the building of the Pyrenees in the Tectonophysics xxx (2009) xxx -xxx Paleogene. Evidence for the transmission of some deformation from the collision border to the interior of the Southern (lower) plate (Iberia) can be found in the form of the Oligocene-Lower Miocene infill of sedimentary basins (Calvo et al, 1993;Calvo, 2004;De Vicente et al, 2007a) and during Oligocene exhumation and rock uplifting that have been deduced from apatite fission-track analysis in segments of some intraplate ranges (De Bruijne, 2001;De Bruijne and Andriessen, 2002;Barbero et al, 2005). Another important fact is the paleomagnetic evidence that precludes a significant N-S relative motion between Africa and Iberia since Jurassic times.…”