Short-term changes in a Saalian glacial lake - The Parchliny C site, central Poland
PBN-AR
Instytucja
Wydział Nauk o Ziemi i Kształtowania Środowiska (Uniwersytet Wrocławski)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
CATENA (35pkt w roku publikacji)
ISSN
0341-8162
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2017
Numer zeszytu
Strony od-do
299-309
Numer tomu
157
Identyfikator DOI
Liczba arkuszy
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
angielski
Rhytmite
Glaciolacustrine sediment
Freshwater fauna
Stable isotopes
Central Poland
Streszczenia
Język
angielski
Treść
The paper discusses results of sedimentological, faunal (molluscs, ostracods) and geochemical studies of an 80-cm-thick rhythmite succession within a glaciolacustrine sequence (8–10m in thickness) of the Ławki Formation exposed at the Parchliny C site, in the tectonically active Kleszczów Graben, central Poland. Sedimentological studies show the predominance of rhythmically deposited pale grey muds (2.0–7cm thick) and black clays (0.5–5cm thick).The pro-glacial sediments have yielded the first examples of Saalian molluscan and ostracod communities to be recorded from Europe and probably globally. The presence of a lake basin is confirmed by the freshwater species fauna: Candona neglecta, Cypridopsis vidua, Fabaeformiscandona protzi, Limnocythere inopinata, Limnocytherina sanctiparicii Cyclocypris laevis, Metacypris cordata (ostracods) and Anodonta cygnaea, Ancylus fluviatilis, Theodoxus fluviatilis, Bithynia tentaculata, Valvata piscinalis and Pisidium sp. (molluscs), suggestive of deposition during a period of colder climatic conditions, although some species might be indicative of a warmer period, resembling an interglacial. The whole section has a high carbonate content, up to several tens percent. The carbonates are enriched in the heavy isotope of oxygen. The isotopic composition of carbon and oxygen indicates two stages of lake development. The transition of the lake from a hydrologically open to a closed system with significant evaporation h as been reconstructed from correlation of δ13C and δ18O. Sedimentological, faunal (molluscs, ostracods) and stable-isotope studies of the Saalian Ławki Formation have revealed an important snapshot – a 14-year record in the hydrological transformation of this specific proglacial lake system
Inne
System-identifier
PX-5a5df4e5d5def5025b1acfe3
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych