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 | | Plausible causes for the re-heating observed in the central and western Alps are explored, and two hypotheses are selected that, at least qualitatively, seem capable to provide the heat explaining the observed thermal evolutions during exhumation: detachment or breakoff of the subducted slab, and heating by accreted radiogenic material (TARM). |
 | | Modelling results show that re-heating in the central Alps may have been caused by slab detachment, whilst the time-scale implied by the geochronological data precludes the observed re-heating to be caused by radiogenic heating due to the presence of a TARM wedge. |
 | | Slab detachment, inferred to have taken place in the central Alps, with implications for the thermal evolution of rocks presently exposed in the western Alps, can explain the re-heating observed in these areas, but its role in the exhumation of the high-pressure rocks is, as yet, unclear. |
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