Dating the topography through thermochronology: application of Pecube code to inverted vertical profile in the eastern Sila Massif, southern Italy
| Autor: | Olivetti V.[1, Balestrieri M.L.[3], Faccenna C.[1], Stuart F.M.[4] |
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| Přispěvatelé: | Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi Roma Tre = Roma Tre University (ROMA TRE), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Università degli Studi Roma Tre, Olivetti, Valerio, Balestrieri, Maria Laura, Faccenna, Claudio, Stuart, Fin M., Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences Subduction (U-Th)/He thermochronology Calabrian Arc Pecube Topography evolution Geology Earth and Planetary Sciences (all) Numerical modeling [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Massif 010502 geochemistry & geophysics 01 natural sciences Thermochronology Paleontology General Earth and Planetary Sciences Cenozoic Geomorphology 0105 earth and related environmental sciences |
| Zdroj: | Italian Journal of Geosciences Italian Journal of Geosciences, 2017, 136 (3, SI), pp.321-336. ⟨10.3301/IJG.2016.09⟩ Italian Journal of Geosciences, Società Geologica Italiana, 2017, 136 (3, SI), pp.321-336. ⟨10.3301/IJG.2016.09⟩ Italian Journal of Geosciences (Testo stamp.) 136 (2017): 321–336. doi:10.3301/IJG.2016.09 info:cnr-pdr/source/autori:Olivetti V.[1,2], Balestrieri M.L.[3], Faccenna C.[1], Stuart F.M.[4]/titolo:Dating the topography through thermochronology: Application of Pecube code to inverted vertical profile in the eastern Sila Massif, southern Italy/doi:10.3301%2FIJG.2016.09/rivista:Italian Journal of Geosciences (Testo stamp.)/anno:2017/pagina_da:321/pagina_a:336/intervallo_pagine:321–336/volume:136 |
| ISSN: | 2038-1719 |
| Popis: | International audience; The Sila Massif is a small part of an orogenic wedge that sits on top of the narrow and active Calabrian subduction zone. The topography of the Sila Massif is characterized by a plateau region whose age and origin has been long debated. Here we integrate new apatite (U-Th)/He data from the eastern flank of the massif with existing apatite fission-track (AFT) data, to constrain the topographic evolution of the massif. The new AHe ages range from 9.7 Ma to 49.8 Ma and overlap the AFT ages indicating that a phase of rapid Cenozoic exhumation was followed by an abrupt decrease of the exhumation rate. A steep/inverse AFT age-elevation relationship from a vertical profile on top of the summit area of the north-eastern Sila may records post-exhumation relief degradation, which is consistent with the low-relief upland topography. To test this hypothesis we performed inverse numerical modeling using Pecube code. Integrating the new AHe ages and the numerical modelling results with the geological constraints we propose a new model for the regional topographic evolution from 30 Ma to the present. |
| Databáze: | OpenAIRE |
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