Retraitement et interprétation d'un profil sismique pétrolier méridien au travers du Massif paléozoïque ardennais (Nord de la France)

Lacquement, Frédéric; Mansy, Jean-Louis; Hanot, Franck; Meilliez, Francis

doi:10.1016/s1251-8050(00)80020-8

Cited by 7 publications

(25 citation statements)

References 5 publications

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“…Central Netherlands Basin A r d e n n e -B r a b a n t T e r r a n e C e n t r a l T e r r a n e S o u th H e w e tt fa u lt F e ld b is s fa u lt N le uw po or t-A sq ue np on t fa ul t zo ne Many authors have discussed the deep structure in this area by means of seismic data [1][2][3][4], gravity and magnetic data [5][6][7][8][9][10], paleomagnetic and seismic data [11], or various geological data [12,13], or integrated seismic data and gravity and magnetic data [14,15].…”

Section: West Netherlands Basinmentioning

confidence: 99%

Fault Distribution Inferred from Gravity Anomalies in the Northern France and Its Adjacent Areas

CHEN

2018

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Abstract. Using Bouguer gravity data, the information on faults has been obtained by means of horizontal directional derivative processing, vertical derivative and wavelet analysis. And according to synthetic analysis with geological data, fault zones distribution map of Northern France and its adjacent areas is presented. We have not the exact depth of the three wavelets details map, but we still can determine the relative spatial relations among faults of different scale and different depth. The northwest trending fault and the northeast trending fault control the structure in the study area. There are also a few south-north trending faults. The structure is quite complicated. The faults with different direction cut each other. The faults outline the boundaries of the basins, grabens and intrusive bodies.

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Section: West Netherlands Basinmentioning

confidence: 99%

Fault Distribution Inferred from Gravity Anomalies in the Northern France and Its Adjacent Areas

CHEN

2018

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“…The MTZ, the emerging part of the major basal thrust of the allochthonous Variscan wedge, can not be precisely defined but, as classically observed along the allochthonous Rheno-hercynian units [e.g. 16], it likely corresponds to the emergence of Lower Devonian red sandstones some kilometres south of the outcropping Paleozoic rocks (Fig. 2a).…”

Section: Geometry Of the Exposed Paleozoic Massifmentioning

confidence: 99%

“…The localized stacking of thrust-sheets induced by this frontal wedging process could explain the pronounced flexure of the substratum observed conspicuously along the Northern France Variscan thrust front [e.g. 16].…”

Section: Sequence Of Thrustingmentioning

confidence: 99%

“…It is characterized by a thrust-wedge geometry developed above a crustal scale gently dipping basal thrust (Fig. 2b) [14][15][16][17][18][19], the emerging part of which is called the Midi thrust zone (MTZ) in northern France and southern Belgium. The latter thrust lies directly upon a Namurian-Westphalian coal-bearing molassic foreland basin inducing the complete dismembering of its southern border [16,20,21].…”

Section: Introductionmentioning

confidence: 99%

“…5. (b) Geometry of the Variscan thrust front along the M146 seismic profile across theWestern Ardennes massif (after[16].…”

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Geometry and kinematics of the Boulonnais fold-andthrust belt (N France): implications for the dynamics of the Northern Variscan thrust front

et al. 2004

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Recent structural data obtained within the Boulonnais thrust belt along the Northern Variscan thrust front provide a new insight into the deformation history of the Variscan belt. The zone under study recorded the latest increments of inversion of the Rheno-hercynian basin in Late Westphalian-Early Stephanian times (ca 305 Ma). Thrusting within the southern margin of the "Old Red Sandstones Continent" propagated primarily in sequence up to the Brabant massif which acts as a significant buttress. This buttress effect, which we suggest to be due to the southward activation of deep-seated inherited Caledonian thrusts, resulted in the out-of-sequence dislocation of the thrust front. The associated localized thrust stack induced a sharp flexure of the underthrust block moulding the border of the molassic coal-bearing foreland basin. During this process, strain markers at the thrust front document an evolution of thrusting from a dominantly NNE to NE direction whereas more internal parts of the belt undergo dextral transcurrent deformations (e.g. the Bray fault zone). Such a partition of the deformation argues for a general transpressional setting of the SE England-Boulonnais orogenic belt acting as a relay zone between more frontal parts of the Variscan orogen (Ardenno-Rhenish and SW England segments). This mechanism highlights the segmented nature of the Variscan thrust front and points out the importance of the Devonian basin pre-structuration in the present-day arcuate shape of the Variscan belt. Late Variscan reactivation of the thrust network occured within a transtensional setting associated to a dominant NNW-SSE directed extension. This event induced the formation of local intramontane basins and contributed to the thinning and thermal restoration of the thickened external Variscan crust in Upper Stephanian-Middle Permian times. RésuméDes données structurales récentes acquises le long du front chevauchant varisque du Boulonnais (N France) permettent d'obtenir une nouvelle image de l'histoire de la déformation du domaine nord-varisque. Le secteur étudié retrace les derniers incréments de l'inversion tectonique du bassin rhéno-hercynien, durant la fin du Westphalien et le début du Stéphanien (aux alentours de 305 Ma BP). Il est montré que, dans un premier temps, l'écaillage de la marge sud du « Continent des Vieux Grès Rouges » intervient en séquence conforme jusqu'au massif du Brabant qui agit comme une zone de butoir majeure. Cet effet butoir, que nous interprétons comme le résultat de l'activation vers le sud de chevauchements profonds hérités des déformations calédoniennes, induit la dislocation hors-séquence du front de chevauchement. L'accumulation résultante d'écailles chevauchantes implique une flexuration importante du bloc crustal chevauché localisée sur l'extrémité nord du bassin d'avant-pays molassique à remplissage houiller. Au cours de cet épisode, les marqueurs de la déformation indiquent que le front de chaîne subit une déformation chevauchante avec une évolution de la direction de transport depui...

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The Stavelot-Venn Massif (Ardenne, Belgium), a rift shoulder basin ripped off the West African craton: Cartography, stratigraphy, sedimentology, new U-Pb on zircon ages, geochemistry and Nd isotopes evidence

Herbosch

Liégeois

Gärtner

et al. 2020

Earth-Science Reviews

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Retraitement et interprétation d'un profil sismique pétrolier méridien au travers du Massif paléozoïque ardennais (Nord de la France)

Cited by 7 publications

References 5 publications

Fault Distribution Inferred from Gravity Anomalies in the Northern France and Its Adjacent Areas

Fault Distribution Inferred from Gravity Anomalies in the Northern France and Its Adjacent Areas

Geometry and kinematics of the Boulonnais fold-andthrust belt (N France): implications for the dynamics of the Northern Variscan thrust front

The Stavelot-Venn Massif (Ardenne, Belgium), a rift shoulder basin ripped off the West African craton: Cartography, stratigraphy, sedimentology, new U-Pb on zircon ages, geochemistry and Nd isotopes evidence

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