Szczegóły publikacji
Opis bibliograficzny
Eemian-Weichselian Pleniglacial fluvial deposits in southern Poland (an example of the Vistula River valley in Kraków) / Tadeusz SOKOŁOWSKI, Agnieszka Wacnik, Barbara Woronko, Jacek Madeja // Geological Quarterly ; ISSN 1641-7291. — 2014 — vol. 58 no. 1, s. 71–84. — Bibliogr. s. 81–84. — Publikacja dostępna online od: 2013-12-11
Autorzy (4)
- AGHSokołowski Tadeusz
- Wacnik Agnieszka
- Woronko Barbara
- Madeja Jacek
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 88048 |
|---|---|
| Data dodania do BaDAP | 2015-03-02 |
| Tekst źródłowy | URL |
| DOI | 10.7306/gq.1138 |
| Rok publikacji | 2014 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Geological Quarterly |
Abstract
A fragment of the middle terrace in the Vistula River valley, nearby the railway station in Krakow, is formed by fluvial channel and overbank deposits of the Pradnik River, which bear a record of various environments affected by changing climatic conditions. The sedimentary succession includes two complexes that differ in lithofacies. The older complex comprises fining-upward deposits (channel sand and gravelly sand with medium- and large-scale trough cross-stratification) and, less frequently, sand with planar cross-stratification overlain by silt with intercalations of biogenic deposits of abandoned channels. Vegetation accompanying the deposition of biogenic layers was typical of boreal coniferous forests, dominated by Pinus sylvestris with a small admixture of Larix, Pinus cembra, Picea, Betula and Populus. Periodically, the landscape passed into open areas overgrown by woody tundra. The complex developed as a result of activity of a meandering river under conditions of a moderately cool climate. The younger complex includes the sand lithofacies with horizontal stratification and low-angle cross-stratification, overlain by alternating sands and silts. The topmost part is represented by sands with large-and medium-scale planar cross-stratification. Lack of biogenic deposits and considerable amount of frosted quartz grains in alluvial sediments indicate aeolian processes of greater intensity, periglacial conditions and evolution towards a braided or transitional river. Pollen successions, absolute dating and studies of structural and textural features of the sediment suggest that the time of its deposition may be estimated at a range between the close of the Eemian Interglacial and the Weichselian Middle Pleniglacial (OIS 5e-OIS 3).
