- Tytuł:
- Palaeoclimate and pedosedimentary reconstruction of a middle to late Pleistocene loess-palaeosol sequence, Prymorske, SW Ukraine
- Autorzy:
-
Stephens, Mark
Krzyszkowski, Dariusz
Ivchenko, Andriy
Majewski, Marek - Powiązania:
- https://bibliotekanauki.pl/articles/2027392.pdf
- Data publikacji:
- 2002
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Ukraine
Quaternary
loess
palaeosols
magnetic susceptibility - Opis:
- A new investigation and palaeoenvironmental reconstruction of the locss-palaeosol sequence at Prymorskc, SW s q Ukraine is presented using soil structures, grain size, mineral magnetics, organic carbon and calcium carbonate determinations. Six units of the established Ukraine Quaternary stratigraphical scheme have been identified and analysed above and including the Zavadivka (Holsteinian) marker horizon - Dnieper, Kaidaky, Tiasmyn, Pryluky and Udai. Precipitation and temperature are tentatively reconstructed from soil and sedimentary proxies calibrated by modern analogues. Increased temperatures and precipitation to today are inferred for the red-brown Zavadivka palaeosol. Overlying Zavadivka is the Dnieper loess containing a gley and two chernozcms above, possibly representing climatic variations of the Saalian Glaciation. The calcified chernozem Kaidaky is separated by a thin loess from the brown/ chestnut Pryluky palaeosol (Eemian) which has features indicating drier conditions to the present. Non-gleyed palaeosols exhibit an enhanced magnetic susceptibility (MS) signal relative to the less weathered loess and highlights the palaeoclimatic potential of the technique. The most well developed palaeosol from this study has the highest MS value (Zavadivka: 80-1 o·8 SJ units) but this relationship is not always found in the Black Sea region. Previous MS analyses at Prymorske (Nawrocki et al. 1999) report significantly higher values to those of this study. Consequently the MS curve at Prymorske cannot be used with confidence for palaeoenvironmental reconstruction and inter-regional correlation without further investigation and modern analogue study.
- Źródło:
-
Studia Quaternaria; 2002; 3-17
1641-5558
2300-0384 - Pojawia się w:
- Studia Quaternaria
- Dostawca treści:
- Biblioteka Nauki
Artykuł