Late orogenic Basin evolution in the Variscan internides: the Saar-Nahe Basin, southwest Germany

Henk, Andreas

doi:10.1016/0040-1951(93)90141-6

Cited by 65 publications

(56 citation statements)

References 30 publications

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“…A transpressional regime may have also accounted for the formation of the regional-extent base Permian unconformity, while mostly uninterrupted subsidence continued in some other parts of Variscan foreland e.g. in the Saar-Nahe Basin (Henk 1993;McCann et al 2006).…”

Section: Discussionmentioning

confidence: 98%

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Mazur

Aleksandrowski

Turniak

et al. 2008

Int J Earth Sci (Geol Rundsch)

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The Carboniferous foreland basin of western Poland contains a coherent succession of late Viséan through Westphalian turbidites derived from a uniform group of sources located within a continental magmatic arc. Detrital zircon geochronology indicates that two main crustal components were present in the source area of Namurian A sediments. They represent Late Devonian and Early Carboniferous ages, respectively. The detritus from Westphalian D beds is much more diversified and contains admixture of Late Carboniferous zircons suggesting rapid unroofing of Variscan igneous intrusions in the hinterland between Namurian A and Westphalian D times. Tectonic repetitions of tens of metres thick fault-bounded stratigraphic intervals, recorded in several wells, provide evidence for compressional regime that occurred in the SW part of the Carboniferous basin not earlier than during the Westphalian C and produced NW-SE trending folds, concordant with the structural grain of the adjacent, NE part of the Bohemian Massif.

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Section: Discussionmentioning

confidence: 98%

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Mazur

Aleksandrowski

Turniak

et al. 2008

Int J Earth Sci (Geol Rundsch)

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“…In the west, the Saar basin and western MGCR are crossed by lines DEKORP 1C and 9N (DEKORP research group 1991, Wenzel and Brun 1991). Below the Permo-Carboniferous halfgraben fill the flatlying and undeformed Mid-Devonian to Lower Carboniferous sequence rests unconformably on a seismically transparent wedge-shaped basement complex (drilled in the Saar 1 well) which can be observed to continue some distance towards the southeast (Henk 1993). The transparency can be tied to the Lower Paleozoic arc, the typically upright structures of the western rise and their abundant intrusion by Lower Carboniferous granites.…”

Section: Large Scale Structure and Seismicsmentioning

confidence: 92%

Transformation of a magmatic arc and an orogenic root during oblique collision and its consequences for the evolution of the European Variscides (Mid-German Crystalline Rise)

Oncken¹

1997

Geologische Rundschau

121

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“…Subsidence of this partly inverted basin, which contains up to 5.6 km of Permo-Carboniferous clastics accounting for a stretching factor of >1.36, involved transtensional reactivation of the Rheno-Hercynian/ Saxo-Thuringian and Saxo-Thuringian/Bohemian sutures. Extrusion of voluminous basalts and rhyolites in the Saar-Nahe Basin, dated at 296-293 Ma, reflects profound destabilisation of its lithospheric system (Henk 1993;Stollhofen and Stanistreet 1994;Korsch and Scha¨fer 1995;Weber 1995b;von Seckendorff et al 2004). In the area of the Mid-German Crystalline Rise post-kinematic granitic to dioritic magmatism increased during the Stephanian-Early Permian (Scha¨fer et al 2000;Thomson and Zeh 2000;Zeh and Bra¨tz 2004).…”

Section: Stephanian-early Permian Disruption Of the Variscan Orogenmentioning

confidence: 99%

Evolution of the lithosphere in the area of the Rhine Rift System

Ziegler

Dèzes

2005

Int J Earth Sci (Geol Rundsch)

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The Rhine Rift System (RRS) forms part of the European Cenozoic Rift System (ECRIS) and transects the Variscan Orogen, Permo-Carboniferous troughs and Late Permian to Mesozoic thermal sag basins. Crustal and lithospheric thicknesses range in the RRS area between 24-36 km and 50-120 km, respectively. We discuss processes controlling the transformation of the orogenically destabilised Variscan lithosphere into an end-Mesozoic stabilised cratonic lithosphere, as well as its renewed destabilisation during the Cenozoic development of ECRIS. By end-Westphalian times, the major sutures of the Variscan Orogen were associated with 45-60 km deep crustal roots. During the Stephanian-Early Permian, regional exhumation of the Variscides was controlled by their wrench deformation, detachment of subducted lithospheric slabs, asthenospheric upwelling and thermal thinning of the mantlelithosphere. By late Early Permian times, when asthenospheric temperatures returned to ambient levels, lithospheric thicknesses ranged between 40 km and 80 km, whilst the thickness of the crust was reduced to 28-35 km in response to its regional erosional and local tectonic unroofing and the interaction of mantle-derived melts with its basal parts. Re-equilibration of the lithosphere-asthenosphere system governed the subsidence of Late Permian-Mesozoic thermal sag basins that covered much of the RRS area. By end-Cretaceous times, lithospheric thicknesses had increased to 100-120 km. Paleocene mantle plumes caused renewed thermal weakening of the lithosphere. Starting in the late Eocene, ECRIS evolved in the Pyrenean and Alpine foreland by passive rifting under a collision-related north-directed compressional stress field. Following endOligocene consolidation of the Pyrenees, west-and northwest-directed stresses originating in the Alps controlled further development of ECRIS. The RRS remained active until the Present, whilst the southern branch of ECRIS aborted in the early Miocene. Extensional strain across ECRIS amounts to some 7 km. Plume-related thermal thinning of the lithosphere underlies uplift of the Rhenish Massif and Massif Central. Lithospheric folding controlled uplift of the VosgesBlack Forest Arch.

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Late orogenic Basin evolution in the Variscan internides: the Saar-Nahe Basin, southwest Germany

Cited by 65 publications

References 30 publications

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Transformation of a magmatic arc and an orogenic root during oblique collision and its consequences for the evolution of the European Variscides (Mid-German Crystalline Rise)

Evolution of the lithosphere in the area of the Rhine Rift System

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Late orogenic Basin evolution in the Variscan internides: the Saar-Nahe Basin, southwest Germany

Cited by 65 publications

References 30 publications

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Uplift and late orogenic deformation of the Central European Variscan belt as revealed by sediment provenance and structural record in the Carboniferous foreland basin of western Poland

Transformation of a magmatic arc and an orogenic root during oblique collision and its consequences for the evolution of the European Variscides (Mid-German Crystalline Rise)

Evolution of the lithosphere in the area of the Rhine Rift System

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Transformation of a magmatic arc and an orogenic root during oblique collision and its consequences for the evolution of the European Variscides (Mid-German Crystalline Rise)