Structural geometry in the eastern Pyrenees and western Gulf of Lion (Western Mediterranean)

Mauffret, A.; Grossouvre, Bernard Durand de; Reis, Antônio Tadeu dos; Gorini, Christian; Nercessian, A.

doi:10.1016/s0191-8141(01)00025-6

Cited by 70 publications

(94 citation statements)

References 37 publications

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“…Based on geometric criteria in seismic stratigraphy, this rebound was measured on the Gulf of Lion outer shelf (Rabineau et al, 2014). The isostatic rebound reached 1.3 km in the Aude-Hérault outer shelf during the Messinian (i.e., 1.8 km/Myr, with a 0.7 Ma duration for the crisis) and reactivated major faults inherited from the Oligocene rifting (Mauffret et al, 2001;Gorini et al, 2005). In these models, the isostatic response to marine reflooding has not been calculated.…”

Section: Origin Of the Olistostrome: Some Impact Of The Messinian Evementioning

confidence: 99%

“…before the rifting of the Corsica-Sardinia block (Mauffret et al, 2001). This surface is preserved at a few locations in the Roussillon area: at Montalba le Château, 5 km NW of Ille sur Têt (Fig.…”

Section: Interest Of the Olistostrome To Reconstruct The Uplift Of Thmentioning

confidence: 99%

“…The structure of the Roussillon Basin was acquired during the Tortonian via two major faults (Albères and Prades) (Fig. 1B), which control its contact with the Hercynian metamorphic basement (Clauzon, 1987;Mauffret et al, 2001;Le Strat and Duvail, 2008). The modern west-east fluvial drainage was also established at that time and was already down-cut in response to the uplift of the Canigou Massif (Clauzon, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…1A) opened as a consequence of the Corsica-Sardinia rifting that created the Algiers-Provence Basin in the Late Oligocene -Early Miocene (Guennoc et al, 1994;Mauffret et al, 2001). Thanks to long-term onshore and offshore investigations, this basin is one of the best known Neogene areas in the Mediterranean region (Depéret, 1885(Depéret, , 1890Bourcart, 1945;Gottis, 1958;Baudelot and Crouzel, 1974;Cravatte et al, 1974Cravatte et al, , 1984Michaux, 1976;Suc, 1976;Cravatte and Suc, 1981;Mein and Aymar, 1984;Clauzon and Cravatte, 1985;Clauzon, 1987Clauzon, , 1990Clauzon et al, 1987Clauzon et al, , 1990Aguilar et al, 1999;Guennoc et al, 2000;Duvail et al, 2005;Aunay et al, 2006;Suc and Fauquette, 2012).…”

Section: Introductionmentioning

confidence: 99%

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The Roussillon Basin (S. France): A case-study to distinguish local and regional events between 6 and 3 Ma

Clauzon

Strat²,

Duvail³

et al. 2015

Marine and Petroleum Geology

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The Roussillon Basin is a non-silled Miocene sedimentary basin filling a late Oligocene-early Miocene graben. The basin was intensively impacted by the 2 Messinian fluvial erosion, as evidenced in exposed sections, in seismic profiles and in deep boreholes drilled for hydrocarbon exploration. As the basin was open to the Mediterranean Sea, the huge drop in sea level at the peak of the Messinian Salinity Crisis is clearly recorded, along with the subsequent sudden marine reflooding and the resulting prograding sedimentary filling, particularly in Gilbert-type fan deltas. Here, the Messinian Erosional Surface (MES) is accurately mapped in a high-resolution document, which corrects the confusion resulting from the set of 1:50,000 scale regional maps. Aim of the 3D reconstruction of the MES is to modernize geological mapping, a crucial challenge for Mediterranean and peripheral areas. Thanks to a reliable chronostratigraphy provided by planktonic foraminifers, calcareous nannofossils, micro-and macro-mammal remains, paleomagnetism and a 10 Be cosmogenic nuclide-derived study, our reconstruction is one of the most comprehensive models of changes in sea level from 6 to 3 Ma. After the marine reflooding of the Mediterranean Basin at 5.46 Ma, the fluctuations in sea level recorded in the Roussillon Basin were forced by global changes. Following reflooding, the Prades large olistostrome collapsed prepared by the previous exhumation along the Canigou fault. The olistostrome is a good example of a local accident resulting from Messinian events. The exceptional changes in sea level at the peak of the Messinian Salinity Crisis deeply marked the Roussillon Basin, momentarily overprinting the Pyrenean orogenesis.

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Section: Origin Of the Olistostrome: Some Impact Of The Messinian Evementioning

confidence: 99%

Section: Interest Of the Olistostrome To Reconstruct The Uplift Of Thmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Roussillon Basin (S. France): A case-study to distinguish local and regional events between 6 and 3 Ma

Clauzon

Strat²,

Duvail³

et al. 2015

Marine and Petroleum Geology

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“…There, the alpine structures were affected by the Neogene Mediterranean rifting, which gave rise to the formation of Neogene intramontane and marine basins (e.g. Juliá and Santanach, 1980;Cabrera et al, 1988;Roca, 1996;Gallart et al, 2001;Mauffret et al, 2001). During the Plio-Pleistocene times, some of the faults bounding the Neogene basins have been inverted Arthaud and Pistre, 1993;Grellet et al, 1994;Goula et al, 1999), and thus, the neotectonic period started more recently than in other parts of the range.…”

Section: Introductionmentioning

confidence: 99%

Active Tectonics of the Pyrenees: A review

Lacan

Ortuño

2012

Journal of Iberian Geology

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The Pyrenees have experienced at least seven earthquakes with magnitude M > 5 in the last 400 years. During the last decades, several seismotectonic, neotectonic and paleoseismological studies have focused on identifying the main active structures of the areas experiencing damaging earthquakes. In spite of these studies, the regional stress regime is still discussed and there is no unequivocal seismotectonic model at the scale of the range. In this paper, we first present a revision of the former works on active faults in the Pyrenees, and then we discuss the main results in terms of their neotectonic setting. We have distinguished five neotectonic regions according to their seismicity, faulting style and morphologic evolution: the westernmost Pyrenees, the North Western Pyrenean zone, the Foreland basins, the Lower Thrust Sheets Domain and the Eastern Pyrenees. This review lead us to differentiate the range into two major domains: the High Chain, where active faults are controlled by vertical maximum stresses, and the Low Chain, where horizontal maximum stresses of variable orientation seem to be dominant. We propose that these different stress domains are related to the isostatic rebound in response to either the difference in crustal thickness and/or the distribution of the Plio-Quaternary erosion.

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Lateral Variations in Foreland Flexure of a Rifted Continental Margin: The Aquitaine Basin (SW France)

Angrand¹,

Ford²,

Watts

2018

Tectonics

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Rift inheritance can play a key role in foreland basin geometry and behavior. If the foreland basin initiates soon after rifting, thermal cooling can also contribute significantly to subsidence. We investigate the effects of crustal inheritance (Aptian‐Cenomanian rifting) on the evolution of the Campanian to middle Miocene flexural Aquitaine foreland basin, northern Pyrenees, France. Surface and subsurface data define rifted crustal geometry and postrift thermal subsidence. Analysis of Bouguer gravity anomalies coupled with flexural modeling constrains the lateral variations of elastic thickness, plate flexure, and controlling loads. The Aquitaine foreland is divided along‐strike into three sectors. The relative role of surface and subsurface (i.e., buried) loading varies along‐strike, and the elastic thickness values decrease from the northeast (25 km) to the southwest (7 km) where the plate is the most stretched. The eastern foreland crust was not rifted and underwent a simple flexural subsidence in response to orogenesis. The central sector was affected by crustal stretching. Here the basin is modeled by combining topographic and buried loads, with postrift thermal subsidence. In the western sector, the foreland basin was created mainly by postrift thermal subsidence. The eastern and central sectors are separated by the Eastern Crustal Lineament, which is one of a series of inherited transverse faults that segment the orogen.

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Structural geometry in the eastern Pyrenees and western Gulf of Lion (Western Mediterranean)

Cited by 70 publications

References 37 publications

The Roussillon Basin (S. France): A case-study to distinguish local and regional events between 6 and 3 Ma

The Roussillon Basin (S. France): A case-study to distinguish local and regional events between 6 and 3 Ma

Active Tectonics of the Pyrenees: A review

Lateral Variations in Foreland Flexure of a Rifted Continental Margin: The Aquitaine Basin (SW France)

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