Pre-Pliocene tectonostratigraphic framework of the Provence continental shelf (eastern Gulf of Lion, SE France)

Author:

Fournier François1,Tassy Aurélie1,Thinon Isabelle2,Münch Philippe3,Cornée Jean-Jacques3,Borgomano Jean1,Leonide Philippe1,Beslier Marie-Odile4,Fournillon Arnaud15,Gorini Christian6,Guennoc Pol2,Oudet Julien1,Rabineau Marina7,Sage Françoise4,Toullec Renaud18

Affiliation:

1. Aix-Marseille Université, CNRS, IRD, CEREGE UM34, 3 place V. Hugo, 13331 Marseille, France

2. DGR/GBS BRGM, 3 avenue Claude Guillemin, BP 36009, 45100 Orléans, France

3. UMR5243-Géosciences Montpellier, Université Montpellier 2, Place Eugène Bataillon, 34090 Montpellier, France

4. UMR 7329-GéoAzur, 250 rue Albert Einstein, 06560 Valbonne, France

5. BEICIP-FRANLAB, 232 Avenue Napoléon Bonaparte, 92500 Rueil-Malmaison, France

6. Institut des Sciences de la Terre de Paris (iSTeP) CNRS: UMR7193-Université Pierre et Marie Curie (UPMC), 4 place Jussieu, 75005 Paris, France

7. CNRS, UMR6538, Domaines Océaniques, IUEM, 29280 Plouzané, France

8. Institut Polytechnique LaSalle Beauvais, Département Géosciences (GEOS), 19 rue Pierre Waguet, BP 30313, 60026 Beauvais cedex, France

Abstract

AbstractThe seaward extension of onshore formations and structures were previously almost unknown in Provence. The interpretation of 2D high-resolution marine seismic profiles together with the integration of sea-bottom rock samples provides new insights into the stratigraphic, structural and paleogeographic framework of pre-Messinian Salinity Crisis (MSC) deposits of the Provence continental shelf. Seven post-Jurassic seismic units have been identified on seismic profiles, mapped throughout the offshore Provence area and correlated with the onshore series. The studied marine surface and sub-surface database provided new insights into the mid and late Cretaceous paleogeography and structural framework as well as into the syn- and post-rift deformation in Provence. Thick (up to 2000 m) Aptian-Albian series whose deposition is controlled by E-W-trending faults are evidenced offshore. The occurrence and location of the Upper Cretaceous South-Provence basin is confirmed by the thick (up to 1500 m) basinal series downlaping the Aptian-Albian unit. This basin was fed in terrigenous sediments by a southern massif (“Massif Méridional”) whose present-day relict is the Paleozoic basement and its sedimentary cover from the Sicié imbricate. In the bay of Marseille, thick syn-rift (Rupelian to Aquitanian) deposition occurred (>1000 m). During the rifting phase, syn-sedimentary deformations consist of dominant N040 to N060 sub-vertical faults with a normal component and N050 drag-synclines and anticlines. The syn-rift and early post-rift units (Rupelian to early Burdigalian) are deformed and form a set of E-W-trending en echelon folds that may result from sinistral strike-slip reactivation of N040 to N060 normal faults during a N-S compressive phase of early-to-mid Burdigalian age (18–20 Ma). Finally, minor fault reactivation and local folding affect post-rift deposits within a N160-trending corridor localized south of La Couronne, and could result from a later, post-Burdigalian and pre-Pliocene compressive phase.

Publisher

EDP Sciences

Subject

Geology

Reference103 articles.

1. New structural constraints on the southern Provence thrust belt (France): evidences for an Eocene shortening event linked to the Corsica-Sardinia subduction;Andreani,2010

2. Reply to the comments of Jean Philip on the paper entitled “New structural constraints on the southern Provence thrust belt (France): evidences for an Eocene shortening event linked to the Corsica-Sardinia subduction”;Andreani;Bulletin de la Société géologique de France,2013

3. Bache F. (2008). – Evolution Oligo-Miocène des marges du micro océan Liguro-Provençal. – PhD thesis, Univ. Bretagne Occidentale, 338 p.

4. The Messinian erosional and salinity crises: view from the Provence basin (Gulf of Lions, western Mediterranean);Bache;Earth Planetary Science Letters,2009

5. Evolution of rifted continental margins: the case of the Gulf of Lions (western Mediterranean basin);Bache;Earth Planetary Science Letters,2010

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