RT Journal Article
T1 Historia del levantamiento tectónico de la Sierra de Cameros (Cordillera Ibérica, España): restricciones en base a cronología mediante huellas de fisión y (U-Th)/He en apatitos
T1 Timing of tectonic uplift in the Sierra de Cameros (Iberian Range, Spain): constraints from fission track analysisand (U-Th)/He geochronology in apatites
A1 Río, Pablo del
A1 Barbero, Luis
A1 Stuart, F.
AB In this work, we present new fission track and (U-Th)/He data of in apatites in order to reconstruct theexhumation of Sierra de Cameros, in the northwestern part of Iberian Range (Spain). Apatite fission track(AFT) data show that samples were reset during the metamorphic peak because they present more than oneage population and all of them are younger than their stratigraphic age. Chemical compositional differencesbetween apatite grains may explain the wide range in AFT age populations. A relationship between stratigraphicand structural position of the samples and their AFT ages can be observed. The deeper samples show theyounger AFT ages. Apatite (U-Th)/He (AHe) ages are around 31-40 Ma and register the last cooling episode(closure temperature of the (U-Th)/He system H» 70º C). The calculated cooling rates indicate a fast coolingaround 40 Ma which is interpreted as a consecuence of tectonic uplift of the basin
YR 2006
FD 2006
LK http://hdl.handle.net/10272/8575
UL http://hdl.handle.net/10272/8575
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026