The Austro-Alpine Metamorphic Basement East of the Tauern Window

Neubauer, Franz; Frisch, Wolfgang

doi:10.1007/978-3-642-84640-3_31

Cited by 24 publications

(30 citation statements)

References 15 publications

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“…This conclusion is compatible with the concept on the global evolution of the extra-Alpine Variscan Europe and intra-Alpine Variscan belt to the north, for which a large number of papers have been published (Frisch and Neubauer 1984;Ziegler 1984Ziegler , 1989Ziegler , 1990Matte 1986Matte , 1991von Raumer 1988von Raumer , 1998Flügel 1990;Frisch et al 1993;Neubauer and Frisch 1993;Ratschbacher and Frisch, 1993;Neubauer et al 1999). The intra-Alpine Paleozoic complexes of the Dinarides and Tisia can be correlated with those of Variscan Europe (Fig.…”

Section: Geodynamic Evolutionsupporting

confidence: 84%

Paleozoic tectonostratigraphic units of the northwest and central Dinarides and the adjoining South Tisia

Pamić

Jurković

2001

Int J Earth Sci (Geol Rundsch)

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In the Central Dinarides and South Tisia different Paleozoic complexes occur in four geotectonic zones: (1) comparatively autochthonous units located in the cores of disrupted anticlines of the External Dinarides; (2) allochthonous disrupted units accompanied by more predominant Triassic formations in the Sava Nappe, which is thrust onto the northeastern margin of the External Dinarides; (3) allochthonous disrupted units, also together with Triassic formations, in the Pannonian and Durmitor nappes of the Internal Dinarides; and (4) polymetamorphic sequences in basement of the Pannonian Basin and South Tisia, respectively. This paper presents basic geological features for the main Paleozoic areas included in these four zones. The tectonostratigraphic units of the first two zones were related to the Gondwana passive continental margin, those of the third zone to the Paleotethyan oceanic realm, and those of Tisia to the active Laurussia margin. Geodynamic evolution of all these Paleozoic complexes was related to opening and closure of the Rheic and Paleotethys Oceans. Rifting processes along North Gondwana started in the Silurian, locally in the Cambrian-Ordovician, and were followed by the Late Silurian/Devonian opening of the Paleotethys. Subduction processes were active by the end of the Devonian and at the beginning of the Carboniferous along the Laurussia margin. They were followed during the Westphalian by main Variscan deformation during collision of Gondwana and Laurussia. Associated metamorphism was very low-grade in the Paleozoic units of the Sava Nappe, low-grade to epidote-amphibolite grade within the Paleozoic complexes of the Pannonian and Durmitor nappes in the Internal Dinarides, and polymetamorphic with migmatites and granitoids in South Tisia. These processes gave rise to a Pangea stage with the Variscan basement disconformably overlain by Late Carboniferous and Permian sediments.

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Section: Geodynamic Evolutionsupporting

confidence: 84%

Paleozoic tectonostratigraphic units of the northwest and central Dinarides and the adjoining South Tisia

Pamić

Jurković

2001

Int J Earth Sci (Geol Rundsch)

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“…One sample of a 20-cm-thick hornblende-garnet-gneiss layer (GR115G) within the plagioclase amphibolite and one sample of an orthogneiss boulder (RAD) from the metaconglomerate were studied. The hornblende garnet gneiss suffered HP-HT metamorphism followed by static decompression (Neubauer and Frisch 1993).…”

Section: Geological Settingmentioning

confidence: 99%

“…Much progress has been made in deciphering the preAlpine evolution of the Austroalpine crystalline rocks of the Eastern Alps through the use of geochronology (see reviews and new data of Neubauer and Frisch 1993;Miller and Thöni 1995;Müller et al 1999;Neubauer et al 1999;Thöni 1999;Neubauer and Handler 2000). Magmatic protolith aged 560-480 Ma only exists in a few localities in the eastern part of the Austroalpine basement.…”

Section: Introductionmentioning

confidence: 98%

Early Palaeozoic tectonothermal events in basement complexes of the eastern Greywacke Zone (Eastern Alps): evidence from U-Pb zircon data

Neubauer

Frisch

Hansen

2002

International Journal of Earth Sciences

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Field observations and U-Pb zircon data yield evidence that the Kaintaleck Complex represents a distinct crystalline basement unit of the eastern Greywacke Zone and contrasts partly with other pre-Alpine basement complexes of the Eastern Alps. The age data indicate possible Late Archean rock formation, several magmatic and metamorphic events in the Early Palaeozoic (ca. 520-490 and ca. 400-360 Ma), and low-grade metamorphic overprint in the Cretaceous. Zircons from a garnet gneiss layer in a plagioclase gneiss and amphibolite sequence yield an upper intercept age of ca. 2.55 Ga which is interpreted as a possible protolith age. The lower intercept age at 514 Ma represents either (1) a magmatic event or (2) a metamorphic overprint within amphibolite facies conditions. Magmatic zircons derived from granitic orthogneiss boulders of the Kalwang Conglomerate, which covers the crystalline basement, crystallised at ca. 500 Ma. The lower discordia intercepts of the orthogneiss boulders mark the Cretaceous low-grade metamorphic overprint. The lower intercept age of paragneiss zircons from another slice of the Kaintaleck Complex suggests a likely Devonian metamorphic event at ca. 390-400 Ma. The new data demonstrate that the Kaintaleck Complex experienced several stages of tectonothermal evolutions, which are in contrast to the evolution of the main mass of the Austroalpine basement. The data constrain linkages of this part of the Austroalpine basement to the Cordillere Ligérienne and Cadomian block within West-European Variscides.

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“…The Brunovistulian terrane faces the Malopolska unit along the Hamburg-Krakow Fault Zone in the north, the Alpine crystalline rocks in the south (Frisch and Neubauer 1989;Raumer and Neubauer 1993;Frisch et al 1993;Neubauer and Frisch 1993;Finger et al 1993;Neubauer and Handler 2000) and the Lugodanubian units (terranes of the Armorican terrane assemblage in the Bohemian Massif, i.e Moldanubian, Lugian and Central Bohemian unit- Chlupac and Vrana 1994) of the Bohemian Massif in the west (Figs. 1, 2).…”

Section: Introductionmentioning

confidence: 99%

Brunovistulian terrane (Bohemian Massif, Central Europe) from late Proterozoic to late Paleozoic: a review

Kalvoda

Bábek

Fatka

et al. 2007

Int J Earth Sci (Geol Rundsch)

143

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The Brunovistulian terrane represents a microcontinent of enigmatic Proterozoic provenance that was located at the southern margin of Baltica in the early Paleozoic. During the Variscan orogeny, it represented the lower plate at the southern margin of Laurussia, involved in the collision with the Armorican terrane assemblage. In this respect, it resembles the Avalonian terrane in the west and the Istanbul Zone in the east. There is a growing evidence about the presence of a Devonian back-arc at the margin of the Brunovistulian terrane. The early Variscan phase was characterized by the formation of Devonian extensional basins with the within-plate volcanic activity and formation of narrow segments of oceanic crust. The oldest Viséan flysch of the Rheic/Rhenohercynian remnant basin (Protivanov, Andelska Hora and Horní Benesov formations) forms the highest allochthonous units and contains, together with slices of Silurian Bohemian facies, clastic micas from early Paleozoic crystalline rocks that are presumably derived from terranes of Armorican affinity although provenance from an active Brunovistulian margin cannot be fully excluded either. The development of the Moravo-Silesian late Paleozoic basin was terminated by coal-bearing paralic and limnic sediments. The progressive Carboniferous stacking of nappes and their impingement on the Laurussian foreland led to crustal thickening and shortening and a number of distinct deformational and folding events. The postorogenic extension led to the formation of the terminal Carboniferous-early Permian Boskovice Graben located in the eastern part of the Brunovistulian terrane, in front of the crystalline nappes. The highest, allochthonous westernmost flysch units, locally with the basal slices of the Devonian and Silurian rocks thrusted over the Silesicum in the NW part of the Brunovistulian terrane, may share a similar tectonic position with the Giessen-Harz nappes. The Silesicum represents the outermost margin of the Brunovistulian terrane with many features in common with the Northern Phyllite Zone at the Avalonia-Armorica interface in Germany.

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The Austro-Alpine Metamorphic Basement East of the Tauern Window

Cited by 24 publications

References 15 publications

Paleozoic tectonostratigraphic units of the northwest and central Dinarides and the adjoining South Tisia

Paleozoic tectonostratigraphic units of the northwest and central Dinarides and the adjoining South Tisia

Early Palaeozoic tectonothermal events in basement complexes of the eastern Greywacke Zone (Eastern Alps): evidence from U-Pb zircon data

Brunovistulian terrane (Bohemian Massif, Central Europe) from late Proterozoic to late Paleozoic: a review

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