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Sedimentological interpretation and stratigraphical position of glacigenic deposits in the Napęków area (Holy Cross Mountains, Poland)

Ludwikowska-Kędzia M., Pawelec H., Adamiec G.

Geologos

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2015

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Vol. 21, No. 4

261--284

EN

The identification of depositional conditions and stratigraphical position of glacigenic deposits in the Napęków area is important for the genetic and stratigraphical interpretation of Quaternary deposits in the central part of the Holy Cross Mountains, as well as for a revision of the course and extent of Middle Polish (Saalian) glaciations. These deposits comprise a series of diamictons which occur between sandy-gravelly deposits. Based on results of macro- and microscopic sedimentological investigations, analysis of heavy mineral composition, roundness and frosting of quartz grains, as well as OSL dating, this complex must have formed during the Odranian Glaciation (Drenthe, Saalian, MIS 6). Sandy-gravelly deposits are of fluvioglacial and melt-out origin. Diamictons represent subglacial traction till. Their facies diversity is a result of variations in time and space, complex processes of deposition and deformation, responsible for their formation at the base of the active ice sheet. This glacigenic depositional complex was transformed by erosion-denudation and aeolian processes in a periglacial environment during the Vistulian (Weichselian, MIS 5d-2).

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Depositional environment of the glacigenic deposits from the Holy Cross Mountains (Poland) – interpretation based on macro- and microstructure analyses

Ludwikowska-Kędzia M., Pawelec H.

Geological Quarterly

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2014

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Vol. 58, No. 4

807–-826

EN

In this paper an attempt is made to identify the depositional environment of glacigenic deposits from the central part of the Holy Cross Mountains (Kielce-Łagów Valley). In this area, the primary glacial relief is very poorly visible, mainly due to its modification by subsequent denudation processes. The study is based on detailed sedimentological (macro- and microstructural) analysis of the deposits. The bottom part of the deposits consists of gravelly and sandy facies. They are overlain by diamicton facies, with a small proportion of sandy facies. Clayey/silty facies occur in minor quantities. The investigations indicate that these deposits represent an ice-marginal environment. Local stagnation of the ice sheet lobe was controlled by the geological structure of bedrock (karstified and faulted limestones) and the features of a fossil valley. The ice-marginal depositional environment is indicated by the predominance of sediment-gravity flow deposits, a low proportion of sorted deposits, as well as the interfingering/alternating of mass flow deposits and waterlain deposits. Deformation occurring in the deposits is of gravitational origin. They also show traces of periglacial processes. The deposits constituted an ice-marginal moraine (dry end moraine with limited topographic expression). Micromorphological analyses provided data for genetic identification of the deposits, and allowed the inference about rheology of deposition and deformation processes. However, in some cases, they did not allow unequivocal genetic classification of the deposits. The results of presented investigations confirm the opinion that detailed and complete explanation of deposit origin requires both micromorphological analyses and macroscopic field sedimentological and structural studies.

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Litostratygrafia plejstoceńskiego tarasu wysokiego doliny Łagowicy w rejonie Masłowca (SE część Gór Świętokrzyskich)

Ludwikowska-Kędzia M., Wiatrak M., Olszak I., Bluszcz A.

Przegląd Geologiczny

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2006

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Vol. 54, nr 11

953-962

EN

The lithostratigraphy of the Pleistocene high meadow terrace deposits in the Łagowica Valley near Masłowiec, southeastern part of the Holy Cross Mountains, central Poland, is presented against the background of geological features and relief of the valley in the Łagów–Ruda segment. The lithostratigraphic divisions for the Holy Cross Mountains assume Middle- Polish Glaciation age for high terraces in valleys. Hypsometry of terraces often served to estimate their age. Detailed sedimentological analysis of deposits forming the terrace of the Łagowica Valley near Masłowiec (textural and structural features, TL and OSL datings) have indicatived a complex fluvial-deluvial origin of the deposits and their Plenivistulian, not Middle Polish Glaciation age. The actual aggradation of the valley bottom has been partly masked by slope processes, which due to local lithostructural conditions, significantly participated in the Łagowica Valley bed aggradation. This problem is well-known in other upland regions of Poland and has been only briefly noted in the Holy Cross Mountains. The research methods and results can be useful in establishing the origins of deposits building meadow terraces, also then when only borecore material is available. The methods can also faciltate stratigraphic interpretation of deposits dated with TL and OSL methods

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Osady interglacjału mazowieckiego w rejonie torfowiska Białe Ługi (Góry Świętokrzyskie)

Ludwikowska-Kędzia M., Nita M.

Przegląd Geologiczny

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2002

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Vol. 50, nr 10/1

875-878

PL

rofil otworu wiertniczego Białe Ługi 5B znajduje się w centralnej części Gór Świętokrzyskich, na południowy-wschód od Daleszyc i Słopca Szlacheckiego. Wiercenie wykonano w strefie przykrawędziowej torfowiska, w obrębie akumulacyjno-erozyjnej terasy z okresu zlodowacenia środkowopolskiego. Spąg serii organicznej nie został przewiercony na skutek trudności technicznych. Mimo to prezentowana sukcesja pyłkowa ma wiele cech, które pozwalają wiązać ją z interglacjałem mazowieckim. Jedną z nich jest obecność w osadach pyłku skrzydłoorzecha (Pterocarya). Sukcesja pyłkowa obejmuje młodszą część interglacjału mazowieckiego, tj. schyłek II oraz III i IV okres pyłkowy wg Szafera (1953) oraz początek ochłodzenia o randze glacjału. Osady interglacjału mazowieckiego, wykształcone w postaci torfów i mułków organicznych, zalegają na głębokości 12,8-10,8 m i są przykryte jedynie mułkami oraz piaskami.

EN

The Białe Ługi 5B section is located in the central part of the Holy Cross Mts, SE from Daleszyce and Slopiec Szlachecki. The borehole was made at the peat-bog verge, within the accumulational-erosional terrace from the Saalian Glaciation. Some technical problems caused that the organic series was not drilled trough. Despite of this, the presented pollen succession shows a number of features, which allows to correlate with the Mazovian Interglacial (the presence ofPterocarya pollen among them). The pollen succession embraces the younger part of the Mazovian Interglacial, i.e., the decline of the second, third and forth pollen periods according to Szafer (1953), and the beginning of a cooling of glacial rank. Interglacial deposits, mainly peats and organic muds (silts), are present from 12.8 to 10.8 m below the surface, and are covered by silts and sands.