Development of Kubłowo Palaeolake in Central Poland During Eemian Based on Subfossil Cladocera Analysis – Preliminary Results

IF 0.6 Q4 GEOSCIENCES, MULTIDISCIPLINARY Studia Quaternaria Pub Date : 2014-04-01 DOI:10.2478/squa-2014-0003

M. Niska, M. Roman

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引用次数: 9

Abstract

Abstract The results of analysis of Cladocera occurrence in lacustrine sediments from the Kubłowo site have been presented. Lacustrine and peat deposits found there have been previously an analyzed for pollen content (depth of 11.1-3.8 m) and represent a longest continuous Eemian-Vistulian succession in central Po land (Roman and Balwierz, 2010). Cladocera analysis was carried out on 25 samples from the depth of 9.20-10.5 m of an Eemian age section. The section consists of fine organic sand, silt with organic matter and gyttja. Identified were 19 species of subfossil Cladocera and five zones of fauna development were distinguished. In the early and mid-Eemian low frequency zooplankton in the palaeolake has been found. Best conditions for zooplankton development occurred in the late Eemian (R PAZ E6, E7). At the end of the Eemian a significant change of climate in a deterioration of environmental conditions and decreased presence of zoo plank ton has been noted. Cladocera results and the pollen data enable a reconstruction of the climatic and environmental changes in the Kubłowo palaeolake.

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波兰中部Eemian时期Kubłowo古湖泊发育的亚化石枝角分析——初步结果

摘要本文报道了Kubłowo站点湖相沉积物中枝角藻赋存状态的分析结果。先前对那里发现的湖泊和泥炭沉积物进行了花粉含量分析(深度为11.1-3.8 m)，代表了波河中部最长的埃米米亚-维斯图里亚连续演替(Roman and Balwierz, 2010)。对emian年龄剖面9.20 ~ 10.5 m深度的25个样品进行了枝角体分析。该剖面由细有机质砂、含有机质粉砂和砂体组成。鉴定出亚化石枝角目19种，区系发育分为5个区系。在早、中期发现了古湖泊的低频浮游动物。浮游动物发育的最佳条件出现在Eemian晚期(R PAZ E6, E7)。在Eemian末期，气候发生了显著变化，环境条件恶化，动物园板蓝鲸数量减少。枝角器的结果和花粉资料可以重建Kubłowo古湖泊的气候和环境变化。

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来源期刊

Studia Quaternaria GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.40

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0.00%

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期刊介绍： Studia Quaternaria is designed to publish scientific works concerning the Quaternary, on local, regional and global scale. Studia Quaternaria is interested in all fields of research dealing with stratigraphy and reconstruction of the past environments, including palaeogeography, palaeoecology, palaeoclimatology, palaeohydrology etc. The journal is also open to studies of natural environmental processes, and to recognition of mechanisms involved in the dynamics of our environment. The clue is that the Quaternary is still ongoing and vivid, and understanding of its past and present development support each other.