Number of the records: 1
Post-Miocene tectonics of the Northern Calcareous Alps
- 1.
SYSNO ASEP 0563953 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Post-Miocene tectonics of the Northern Calcareous Alps Author(s) Szczygiel, J. (PL)
Baroň, Ivo (USMH-B) ORCID, SAI
Melichar, R. (CZ)
Plan, L. (AT)
Mitrovič-Woodell, I. (AT)
Kaminsky, E. (AT)
Scholz, D. (DE)
Grasemann, B. (AT)Article number 17730 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 12, č. 1 (2022)Number of pages 10 s. Publication form Online - E Language eng - English Country DE - Germany Keywords Eastern Alps ; active faults ; karst caves ; lateral extrusion ; Qaternary Subject RIV DB - Geology ; Mineralogy OECD category Geology R&D Projects GC22-24206J GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support USMH-B - RVO:67985891 UT WOS 000873838100061 EID SCOPUS 85140404590 DOI 10.1038/s41598-022-22737-5 Annotation The Late Cretaceous orogeny followed by the Eocene collision of the Adriatic with the European plate dissected the Northern Calcareous Alps (NCA) by a number of well-studied strike-slip fault systems accommodating N-S shortening and E-W stretching. However, the post-Miocene fault activity is poorly constrained due to lack of Neogene faulted sediments, and glacial erosion of geomorphic indicators. Using the protected environment of caves, we fill the knowledge gap in the post-Miocene evolution of the NCA by paleostress analysis of 172 reactivated faults that offset passages in 28 caves near major faults. Constrained maximum age of caves, our results indicate that the NCA have been subjected to N to NE trending compression since Pliocene. Faulted speleothems dated with Th-230/U method, indicate that the recorded present-day stress state did not significantly change during the last 0.5 Ma. In contrast to the previously proposed post-Miocene N-S extension of NCA, but in agreement with what was observed in Vienna and Pannonian basins, we conclude that the eastward extrusion resulting from N-S convergence has continued despite a distinct slowdown of plate tectonic velocities in the late Miocene. The N-S extension affected only the Alpine front during Pliocene Molasse basin inversion, while at the scale of the Alpine orogen the NCA underwent successive N-S shortening and E-W stretching. Workplace Institute of Rock Structure and Mechanics Contact Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Year of Publishing 2023 Electronic address https://www.nature.com/articles/s41598-022-22737-5
Number of the records: 1