The preservation potential of loess in low-elevation mountains (Mecsek Mountains, Hungary)
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Le résumé fourni par la source
Abstract Loess–paleosol outcrops were logged and dated to trace loess cover during the Pleistocene in a low-elevation mountainous area. The exposed successions were a maximum of 15 m thick and stratigraphically fragmentary. Still, results suggest that loess was deposited in all climatically suitable periods within the limits of the dating methods (ca. 400 ka), and probably also beyond this. Luminescence measurements provided numerical ages from ca. 18 ka to ca. 200 ka and minimum ages of up to >267 ka. Loess accumulation was also active during the relatively mild MIS 3. A new occurrence of a well-preserved Quaternary tephra was documented, correlative with the middle Pleistocene Bag Tephra (ca. 340 or 368 ka). The dating of loess successions provided valuable data on geomorphic evolution as well, identifying hydrological changes and constraining a maximum incision and uplift rate of 0.008–0.035 mm/yr for the western part of the area. The low thickness of loess–paleosol successions and the stratigraphic gaps seem to be a consequence of repeated erosion during the Pleistocene rather than a result of non-deposition. The mountains probably have been covered with loess for most of the time during the past 1 Ma. This should be taken into consideration in studies influenced by the loess cover of an area.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- The preservation potential of loess in low-elevation mountains (Mecsek Mountains, Hungary)
- Date Crossref
- 27/02/2025
- Éditeur
- Cambridge University Press (CUP)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Eötvös Loránd University pays non établi dans la noticeUniversité ou école supérieure
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Institute for Geological and Geochemical Research pays non établi dans la noticeStructure de recherche
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HUN-REN Research Centre for Astronomy and Earth Sciences pays non établi dans la noticeStructure de recherche
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HUN-REN Wigner Research Centre for Physics pays non établi dans la noticeStructure de recherche
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HUN-REN–MTM–ELTE Research Group for Paleontology pays non établi dans la noticeInstitution
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HUN-REN-ELTE Volcanology Research Group pays non établi dans la noticeInstitution
Eötvös Loránd University, Institute for Geological and Geochemical Research et HUN-REN Research Centre for Astronomy and Earth Sciences, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.