期刊名称：Annales Universitatis Mariae Curie-Skodowska. Sectio B, Geographia, Geologia, Mineralogia et Petrographia
印刷版ISSN：0137-2025
出版年度：2002
卷号：LVII
出版社：Maria Curie-Sklodowska University, Lublin
摘要：The research concerned Quaternary deposits obtained in three cartographic borings: Bogucice (K-6), Honiatycze (K-4 bis), Czartorja (K-2) in SMGP 1:50000 chart, Grabowiec chart, in SE part of Działy Grabowieckie in the Lublin Upland. The maximum thickness of the Quaternary was found in Bogucice (K-6) boring, where it equals 42.3 m. The sediments are genetically and stratigraphically varied, there are numerous stratigraphic gaps. Boulder clays from Sanian 2 and Sanian 1 Glaciations were found in the borings. The oldest loesses from Liwiecian Glaciation (LN1b2 - from the middle stadial) and LN1c3 - from the early stadial) were recognised. There are also: loess from the early stadial of the Sanian 2 Glaciation (symbol - LN2c3), the oldest loess from the descending phase of the older stadial of Sanian 1 Glaciation (LN3a2), and the oldest loess from the ascending phase of the older stadial of this Glaciation (LN3b2). The oldest level of LN4 loess of Nidanian Glaciation was found in the floor of Quaternary deposits, directly on weatherings of Cretaceous rocks in Honiatycze boring (K-4 bis). From the point of view of its physical characteristics it is comparable to younger upper loesses of the last glaciation. The oldest loesses LN2c3 occur in Bogucice (K-6) in bog facies and they contain molluscs, which are charac-teristic of loesses. LN3a2 loess was bored between the moraines of stadial overthrusts of Sanian 1 Glaciation; the lower moraine was dated with the TL method to 666 124 ka BP (Lub-3599).
In boring profiles there are fossil soils of the interglacial rank GJ3b - Mazovian Interglacial; GJ2 - Lublinian Interglacial; GJ1 - Eemian Interglacial and Early Vistulian. Fossil soils of interstadial rank have developed on LN3a2, on loess-like silts below LN3c3, on loess LN1c3 and LN1b2. Within the older loesses, interstadial soil which developed on LSn has been found. The thickness of Vistulian loesses varies from 3.5 to 7.0 m in the borings investigated. Interstadial soil, which developed on younger lower loess, is particularly noticeable in their sections.
On the basis of the geological situation and TL dates, the distinguished stratigraphic levels were correlated with isotope-oxygen stadia of sea deposits. The results of the research show that Quaternary deposits of Działy Grabowieckie are more stratigraphically diverse than previously expected. New stratigraphic units of the oldest loesses have been distinguished in the author's scheme: LN1c3 (early stadial of Liwiecian Glaciation), and LN3a2 - descending phase of the older stadial of Sanian 1 Glaciation. New data concerning the characteristics of the oldest loess LN4 from Nidanian Glaciation was obtained. No occurrence of boulder clay from Odranian Glaciation was observed in the borings investigated.
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