Variscan deformation along the Teisseyre-Tornquist Zone in SE Poland: Thick-skinned structural inheritance or thin-skinned thrusting?

Krzywiec, Piotr; Gągała, Łukasz; Mazur, Stanisław; Słonka, Łukasz; Kufrasa, Mateusz; Malinowski, M.; Pietsch, Kaja; Golonka, Jan

doi:10.1016/j.tecto.2017.06.008

Cited by 35 publications

(49 citation statements)

References 13 publications

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“…However, the smooth, undisturbed geometry of the EEC top basement slope along the TTZ (Figs. 2, 4), revealed by the recent, high-resolution seismic reflection profiles of the PolandSPAN™ survey (Mazur et al 2015, 2016b, Krzywiec et al 2017a) and deep reflection profile POLCRUST-01 (Malinowski et al 2013, Krzywiec et al 2017b, as well as by potential field modelling (Mazur et al 2015(Mazur et al , 2016a(Mazur et al , 2016b(Mazur et al , 2017, is difficult to reconcile with the presence of a Palaeozoic tectonic suture in this zone. This is also due to the presence of tectonically undisturbed lower Palaeozoic sediments covering the top of crystalline basement in central Poland (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The interpretation by Dadlez et al (2005) was also invoked in recently published papers based on the results of deep seismic reflection profile POLCRUST-01 (Malinowski et al 2013, crossing SE Poland. Interestingly, it was done so even though the POLCRUST-01 profile unequivocally showed the SW-ward extension of the crystalline basement of the EEC with essentially undisturbed top, sloping below the Łysogóry and Małopolska Blocks, at a distance of at least 50 km beyond the TTZ (Malinowski et al 2013, Krzywiec et al 2017b.…”

Section: Discussionmentioning

confidence: 99%

“…This is additionally substantiated by the presence of tectonically undisturbed lower Palaeozoic sediments overlying the crystalline basement in the central part of the TTZ. The sedimentary succession is deformed in the NW and SE parts of the TTZ, but in both cases its deformation is thin-skinned, being associated with the Variscan folding and thrusting in the Lublin-Radom area (Antonowicz et al 2003, Krzywiec et al 2017a, 2017b and Caledonian shortening in Pomerania (e.g., Mazur et al 2016b). In the latter case, the folded Ordovician and Silurian sediments were thrust over the undeformed part of the Caledonian foreland basin, as indicated by the PL-5600 seismic profile ( Fig.…”

Section: Dmentioning

confidence: 99%

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On the nature of the Teisseyre-Tornquist Zone

Mazur

Krzywiec

Malinowski

et al. 2018

geol

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Abstract:The Teisseyre-Tornquist Zone (TTZ) is the longest European tectonic and geophysical lineament extending from the Baltic Sea in the NW to the Black Sea in the SE. This tectonic feature defines a transition zone between the thick crust of the East European Craton (EEC) and the thinner crust of the Palaeozoic Platform to the SW. The TTZ is evident from the seismic data as a perturbation of the Moho depth as well as from magnetic and gravity anomaly maps and heat flow distribution. For over a century, the TTZ has been considered a fossil plate boundary of the EEC corresponding to the limit of early Palaeozoic palaeocontinent Baltica. The results of quantitative interpretation of gravity and magnetic data, integrated with data from the new reflection seismic profiles crossing the TTZ, indicate the continuation of the Precambrian basement of the EEC and its lower Palaeozoic cover toward the SW underneath the Palaeozoic Platform. Potential field modelling also suggests the occurrence of a crustal keel underneath the TTZ. These results imply the location of a Caledonian tectonic suture, marking the site of the collision between Avalonia and Baltica, not along the TTZ, but farther SW, in NE Germany and SW Poland. Consequently, the extensive Permo-Mesozoic sedimentary basin of western Poland is established above the attenuated margin of the Baltica palaeocontinent.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Dmentioning

confidence: 99%

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On the nature of the Teisseyre-Tornquist Zone

Mazur

Krzywiec

Malinowski

et al. 2018

geol

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“…Recent seismic data image a Variscan thin‐skinned thrust‐and‐fold belt emplaced on the SW slope of the East European Craton within the Teisseyre–Tornquist Zone, close to the HCM (Krzywiec, Gągała, et al., ; Krzywiec, Mazur, et al., Figure inset). A Variscan compressional regime is invoked to explain the thin‐skinned structuring of the pre‐Permian sedimentary pile and >20 km of calculated shortening (Figure ; Krzywiec, Gągała, et al., ). Hence, Variscan heating might have been caused by a combined effect of tectonic and/or sedimentary burial and elevated heat flow during the late Carboniferous.…”

Section: Discussionmentioning

confidence: 99%

“…Variscan deformation of the HCM is manifested by the occurrence of Carboniferous folds and thrusts (e.g. Konon, ; Lamarche, Lewandowski, et al., ; Mizerski, ) as well as the presence of a thin‐skinned fold‐and‐thrust belt encroaching onto the East European Craton directly SE of the HCM (Krzywiec, Gągała, et al., ; Krzywiec, Mazur, et al., ). The kinematic mechanism of the Variscan folding inside the HCM was interpreted as a multi‐detachment buckling by Konon (), who proposed several décollements dispersed throughout the Palaeozoic strata.…”

Section: Geological Settingmentioning

confidence: 99%

Tectonothermal history of the Holy Cross Mountains (Poland) in the light of low‐temperature thermochronology

et al. 2018

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The low-temperature thermal history of the Holy Cross Mountains (HCM) is investigated by apatite fission track and apatite and zircon (U-Th)/He thermochronology.Our results provide constraints on the deformation history of Palaeozoic basement rocks in the transition area from Precambrian to Palaeozoic Europe that are exposed from beneath Permian-Mesozoic sediments within the HCM. Late to post-Variscan cooling of the Palaeozoic strata from maximum temperatures is shown to be a major feature of the HCM. This cooling likely followed a heating event related to burial and/or hot fluid circulation along the Holy Cross Fault in the late Carboniferous.The central part of the HCM shows a rapid cooling event caused by tectonic inversion, which started in the Late Cretaceous. However, this event was less pronounced in the western margin of the HCM, where slow cooling continued throughout the Mesozoic with only minor acceleration of the cooling rate since the latest Cretaceous.

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Depth-to-basement for the East European Craton and Teisseyre-Tornquist Zone in Poland based on potential field data

Mikołajczak

Mazur

Gągała

2018

Int J Earth Sci (Geol Rundsch)

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Results of a depth-to-basement study are presented for the East European Craton and the Teisseyre-Tornquist Zone (TTZ) in Poland. The terrestrial gravity data are inverted for the top of the Paleoproterozoic basement and, independently, for the top of the Ediacaran using seismic horizons from the PolandSPAN™ seismic survey and well tops as input depth measurements. The depth to the Ediacaran modelling was additionally extended to cover the Łysogóry Block and northern Małopolska Block. The results are visualised as isobath maps for the top of the Paleoproterozoic basement and top of the Ediacaran and an isopach map for the Ediacaran, supplemented with qualitative structural interpretation based on gravity and magnetic data. The results of modelling show a smooth crystalline basement slope within the TTZ with the top of the Paleoproterozoic basement uniformly descending south-westwards by 10-14 km. The thickness of the Ediacaran in SE Poland increases in the same direction to more than 10 km within the TTZ. Such a crustal architecture, in combination with the earlier documented Moho elevation of 4-6 km, reveals significant thinning of the Paleoproterozoic crust within the TTZ to form a crustal necking zone due to the Ediacaran rifting. A smooth geometry of the top of basement along with the lack of basement-rooted faults suggests a ductile mode of crustal thinning during rifting of Rodinia. Moreover, the development of the NW-SE-oriented rift, a precursor of the Tornquist Ocean, was associated with rifting in a NE-SW direction parallel to the Orsha-Volyn Rift.

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Variscan deformation along the Teisseyre-Tornquist Zone in SE Poland: Thick-skinned structural inheritance or thin-skinned thrusting?

Cited by 35 publications

References 13 publications

On the nature of the Teisseyre-Tornquist Zone

On the nature of the Teisseyre-Tornquist Zone

Tectonothermal history of the Holy Cross Mountains (Poland) in the light of low‐temperature thermochronology

Depth-to-basement for the East European Craton and Teisseyre-Tornquist Zone in Poland based on potential field data

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