Szczegóły publikacji
Opis bibliograficzny
Post-Variscan thermal history of the Boskovice Basin (Bohemian Massif, Czech Republic) based on thermochronology data / Dariusz BOTOR, Stanisław Mazur, Ondřej Bábek, Jakub Jirásek, István Dunkl, Aneta A. Anczkiewicz, Yuntao Tian // International Journal of Earth Sciences ; ISSN 1437-3254. — 2025 — vol. 114 iss. 3, s. 553–572. — Bibliogr. s. 569–572, Abstr. — Publikacja dostępna online od: 2025-03-16
Autorzy (7)
- AGHBotor Dariusz
- Mazur Stanisław
- Bábek Ondřej
- Jirásek Jakub
- Dunkl István
- Anczkiewicz Aneta A.
- Tian Yuntao
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 160577 |
|---|---|
| Data dodania do BaDAP | 2025-06-27 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s00531-025-02496-0 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Earth Sciences |
Abstract
The thermal history of the Boskovice Basin in the SE Bohemian Massif remains a subject of debate, particularly regarding the extent and timing of thermal resetting in its sedimentary succession. Previous studies have suggested either prolonged burial-related heating or localised tectonothermal events as the dominant mechanism. To address this controversy, we apply apatite fission track (AFT) and zircon (U–Th)/He (ZHe) thermochronology to seven samples from the uppermost Carboniferous–lower Permian coal-bearing siliciclastic succession. The ZHe thermochronometry yielded Permian ages (297.7 ± 8.6 to 262.4 ± 7.9 My), whilst the AFT ages range from 187.3 My ± 14.2 to 120.8 ± 10.2. The AFT ages of all samples are much younger than their stratigraphic ages, indicating that they have been thermally reset. In contrast, the ZHe ages of some samples are only 10–30 My younger than the depositional age, whilst for the remaining samples, they coincide with the stratigraphic age. This means that only in some samples, the zircon grains have been reset, in which case they record a thermal event in the Middle–Late Permian. The unimodal distribution, relatively short mean lengths (13.25–12.30 µm) and low standard deviation values (1.4–1.1 μm) of the track lengths indicate that the Permian heating event was followed by prolonged residence in the AFT partial annealing zone during the Mesozoic and final Late Cretaceous–Cenozoic cooling phase, as shown by numerical thermal models. Thermal modelling using ZHe and AFT data has shown that the coalification of organic matter contained in the uppermost Carboniferous to lower Permian rocks occurred already in the Permian, when the Boskovice Basin sedimentary rocks experienced maximum paleotemperatures. Consequently, our results indicate the importance of Middle–Late Permian tectonics leading to inversion of the Boskovice Basin (273.7–262.4 My; Guadalupian) only 10–30 My after the end of sedimentation.
