Late Cretaceous inversion of the NW segment of the Mid-Polish Trough – how marginal troughs were formed, and does it matter at all?

Krzywiec, Piotr; Stachowska, Aleksandra

doi:10.1127/zdgg/2016/0068

Cited by 21 publications

(46 citation statements)

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“…Many concordant and discordant salt structures particularly in the Lower Saxony Basin, in the eNGB and in the marginal parts of the Mid‐Polish Trough reached their phase of main activity during the Late Cretaceous (e.g. Jähne, Hoffmann, Kley, & Dunkl, ; Krzywiec & Stachowska, ; Mazur, Scheck‐Wenderoth, & Krzywiec, ; Otto, ; Figure d). Furthermore, salt‐cored anticlines, which were initiated during the Late Cretaceous, for example, in the southern eNGB, probably reached the phase of main activity at the same time.…”

Section: Resultsmentioning

confidence: 99%

“…At the boundaries of the Mid‐Polish Trough, salt structures were either formed due to thin‐skinned extension decoupled from graben faults during the Triassic or Jurassic or, due to tectonic shortening transmitted along a salt detachment from the inverted basin centre during the Late Cretaceous (e.g. Dadlez, ; Krzywiec, , , ; Krzywiec & Stachowska, ; Wagner et al., ; Widera, Ćwikliński, & Karman, ).…”

Section: Synthesismentioning

confidence: 99%

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The timing of salt structure growth in the Southern Permian Basin (Central Europe) and implications for basin dynamics

et al. 2018

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In this paper, a literature‐based compilation of the timing and history of salt tectonics in the Southern Permian Basin (Central Europe) is presented. The tectono‐stratigraphic evolution of the Southern Permian Basin is influenced by salt movement and the structural development of various types of salt structures. The compilation presented here was used to characterize the following syndepositional growth stages of the salt structures: (a) “phase of initiation”; (b) phase of fastest growth (“main activity”); and (c) phase of burial’. We have also mapped the spatial pattern of potential mechanisms that triggered the initiation of salt structures over the area studied and summarized them for distinct regions (sub‐basins, platforms, etc.). The data base compiled and the set of maps produced from it provide a detailed overview of the spatial and temporal distribution of salt tectonic activity enabling the correlation of tectonic phases between specific regions of the entire Southern Permian Basin. Accordingly, salt movements were initiated in deeply subsided graben structures and fault zones during the Early and Middle Triassic. In these areas, salt structures reached their phase of main activity already during the Late Triassic or the Jurassic and were mostly buried during the Early Cretaceous. Salt structures in less subsided sub‐basins and platform regions of the Southern Permian Basin mostly started to grow during the Late Triassic. The subsequent phase of main activity of these salt structures took place from the Late Cretaceous to the Cenozoic. The analysis of the trigger mechanisms revealed that most salt structures were initiated by large‐offset normal faults in the sub‐salt basement in the large graben structures and minor normal faulting associated with thin‐skinned extension in the less subsided basin parts.

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Section: Resultsmentioning

confidence: 99%

Section: Synthesismentioning

confidence: 99%

The timing of salt structure growth in the Southern Permian Basin (Central Europe) and implications for basin dynamics

et al. 2018

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“…Nevertheless, if the basin fill is very homogenous as in the case of the up to 2500 m thick marlstones of the Subhercynian and Münsterland basins, detection of growth strata is nearly impossible. Krzywiec and Stachowska (2016) argued for a structure in the Polish trough that the observed higher total thickness of Upper Cretaceous strata only reflects folding at the margin of the inverted structure and erosional truncation, not increased subsidence in a marginal trough. The distinction between these two cases is only possible if thickness trends of single units are detectable.…”

Section: Growth Strata and Progressive Unconformitiesmentioning

confidence: 98%

“…They were explained by relaxation of the lithosphere and taken as a marker for the end of inversion tectonics already in the Maastrichtian (Nielsen et al, 2005). Krzywiec and Stachowska (2016), emphasizing that such a shift is not known from the inverted Polish basin, challenged this idea. Nevertheless, the described example at the southern flank of the Polish swell shows a remarkable hiatus below an unconformity overlain by Eocene post-inversion deposits.…”

Section: Introductionmentioning

confidence: 99%

Dawn and Dusk of Late Cretaceous Basin Inversion in Central Europe

Voigt¹,

Kley²

2020

Preprint

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Abstract. Central Europe was affected by a compressional tectonic event in the Late Cretaceous, caused by the convergence of Iberia and Europe. Basement uplifts, inverted graben structures and newly formed marginal troughs are the main expressions of crustal shortening. Although the maximum activity occurred in a short period between 90 and 75 Ma, the exact timing of this event is still unclear. Dating of start and end of basin inversion is very different depending on the applied method. On the basis of borehole data, facies and thickness maps, the timing of basin re-organisation was reconstructed for several basins in Central Europe. The obtained data point to a synchronous start of basin inversion already at 95 Ma (Cenomanian), 5 Million years earlier than commonly assumed. The end of the Late Cretaceous compressional event is more difficult to pinpoint, because regional uplift and salt migration disturb the signal of shifting marginal troughs. Unconformities of Late Campanian to Paleogene age on inverted structures indicate slowly declining uplift rates.

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“…For instance, shortening structures of small magnitude are widespread in the German uplands. Mesozoic structures in the Southern Permian Basin and the northern Alpine Molasse basin are sealed by an extensive cover of locally latest Cretaceous but mostly Cenozoic sediments (Bachmann et al, 1987;Baldschuhn et al, 2001; Krzywiec and Stachowska, 2016;Voigt et al, this issue).…”

Section: Geological Settingmentioning

confidence: 99%

Late Cretaceous to Paleogene exhumation in Central Europe – localized inversion vs. large-scale domal uplift

Eynatten¹,

Kley²,

Dunkl³

et al. 2020

Preprint

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Abstract. Large parts of Central Europe have experienced exhumation in Late Cretaceous to Paleogene time. Previous studies mainly focused on thrusted basement uplifts to unravel magnitude, processes and timing of exhumation. This study provides, for the first time, a comprehensive thermochronological dataset from mostly Permo-Triassic strata exposed adjacent to and between the basement uplifts in central Germany, comprising an area of at least some 250–300 km across. Results of apatite fission track and (U-Th)/He analyses on > 100 new samples reveal that (i) km-scale exhumation affected the entire region, (ii) thrusting of basement blocks like the Harz Mountains and the Thuringian Forest focused in the Late Cretaceous (about 90–70 Ma) while superimposed domal uplift of central Germany is slightly younger (about 75–55 Ma), and (iii) large parts of the domal uplift experienced removal of 3 to 4 km of Mesozoic strata. Using spatial extent, magnitude and timing as constraints suggests that thrusting and crustal thickening alone can account for no more than half of the domal uplift. Most likely, dynamic topography caused by upwelling asthenosphere has contributed significantly to the observed pattern of exhumation in central Germany.

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Late Cretaceous inversion of the NW segment of the Mid-Polish Trough – how marginal troughs were formed, and does it matter at all?

Cited by 21 publications

References 0 publications

The timing of salt structure growth in the Southern Permian Basin (Central Europe) and implications for basin dynamics

The timing of salt structure growth in the Southern Permian Basin (Central Europe) and implications for basin dynamics

Dawn and Dusk of Late Cretaceous Basin Inversion in Central Europe

Late Cretaceous to Paleogene exhumation in Central Europe – localized inversion vs. large-scale domal uplift

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