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Geo-thermochronology of the Saint Antonin basin, south-eastern France

Acceso Abierto
ID Minciencias: ART-0001499812-73
Ranking: ART-ART_A2

Abstract:

The clastic sedimentary formations of the Saint Antonin basin in the French Maritime Alps contain the record of the Early Oligocene erosional history of the Maures-Esterel massif, Sardinia and Corsica. Detrital apatite fission-track dating and zircon fission-track/U-Pb double dating of samples collected from the Saint Antonin basin confirm sediment provenance and allow obtaining first-order estimates of drainage basin maximum and long-term average exhumation rates. Whereas average exhumation rates were on the order of 0.1–0.2 km/Myr during the Early Oligocene, small parts of the Saint Antonin basin source areas may have experienced maximum exhumation rates on the order of 0.4–0.7 km/Myr. Although zircons and apatites with Early Oligocene fission-track cooling ages make up between 11–15% of the dated grains, a possible volcanic contribution is negligible, as only one single volcanic zircon grain was identified by fission-track/U-Pb double dating. Regional geodynamic processes with convergence in the Western Alps to the east and the end of the Pyreneo-Provençal compression phase by the early Oligocene controlled the differences in basin fill history and sediment provenance between the Saint Antonin basin and the largely contemporaneous Barrême basin in south-eastern France.

Tópico:

Geological and Geochemical Analysis

Citaciones:

Citations: 7
7

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Paperbuzz Score: 0
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Información de la Fuente:

SCImago Journal & Country Rank
FuenteBSGF – Earth Sciences Bulletin
Cuartil año de publicaciónNo disponible
Volumen189
Issue3
Páginas12 - 12
pISSN0037-9409
ISSNNo disponible

Enlaces e Identificadores:

Scienti ID0001499812-73Minciencias IDART-0001499812-73Openalex URLhttps://openalex.org/W2890463769
Doi URLhttps://doi.org/10.1051/bsgf/2018013Open_access URLhttps://www.bsgf.fr/articles/bsgf/pdf/2018/03/bsgf180003.pdf
Artículo de revista