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

Ludwikowska-Kędzia, Małgorzata; Pawelec, Halina; Adamiec, Grzegorz

doi:10.1515/logos-2015-0018

Cited by 3 publications

(1 citation statement)

References 64 publications

(88 reference statements)

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“…The low percentage of kaolinite found in previously deposited sediments suggests the influence of a glacial environment, while interglacial conditions favour higher amount of illite (Jung et al, 2019). The climatic conditions prevailing during glaciations were responsible for a number of phenomena amplifying the contrasting response of individual lithological complexes to weathering (Lautridou et al, 1992; Ludwikowska‐Kędzia et al, 2015; Ludwikowska‐Kędzia & Pawelec, 2014). This differentiation could be seen most clearly across the contact between Keuper–Rhaetian clay (and Bathonian clay) and Callovian gaizes overlain by thick Oxfordian limestones (Figure 5a,b).…”

Section: Non‐tectonic Mechanism Of Overburden Folding In a Glacial–in...mentioning

confidence: 99%

Swelling and flow of expanding clays as a cause for non‐tectonic deformations in a glacial–interglacial environment: Holy Cross Mountains, Poland

Jurewicz

Karnkowski

Czarnecka-Skwarek

et al. 2023

Earth Surf Processes Landf

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Not all deformational structures are tectonic in nature. Those that do not form under the influence of endogenic causes, but are the result of, for example, gravity, compaction or diapiric extrusion, are referred to as non‐tectonic phenomena. An example of such deformation is the steep and overturned dips of Callovian and Oxfordian layers in the gently folded Mesozoic cover of the Holy Cross Mountains. Their steepening was a result of processes taking place in the underlying ductile formations of Keuper–Rhaetian (Upper Triassic) and Bathonian, slightly enhanced by glaciotectonics. The latter are dominated by claystones, with a minor share of mudstones and sandstones. Their plasticity was due to a significant share of mixed‐layer minerals of smectite‐illite type, which under conditions of high water could swell. Low‐density water‐saturated clays were extruded from under the edge of a limestone slab leading to its deformation. The diapiric flow of the clay‐mass was stimulated by low temperature, high water saturation of rocks and mechanical disintegration associated with freeze–thaw processes during the Pleistocene.

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Section: Non‐tectonic Mechanism Of Overburden Folding In a Glacial–in...mentioning

confidence: 99%

Swelling and flow of expanding clays as a cause for non‐tectonic deformations in a glacial–interglacial environment: Holy Cross Mountains, Poland

Jurewicz

Karnkowski

Czarnecka-Skwarek

et al. 2023

Earth Surf Processes Landf

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Differences between the last two glacial maxima and implications for ice-sheet, δ18O, and sea-level reconstructions

Rohling

Hibbert

Williams

et al. 2017

Quaternary Science Reviews

100

115

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Arctic ice shelf Last Interglacial Glacioisostatic adjustment a b s t r a c t Studies of past glacial cycles yield critical information about climate and sea-level (ice-volume) variability, including the sensitivity of climate to radiative change, and impacts of crustal rebound on sealevel reconstructions for past interglacials. Here we identify significant differences between the last and penultimate glacial maxima (LGM and PGM) in terms of global volume and distribution of land ice, despite similar temperatures and radiative forcing. Our analysis challenges conventional views of relationships between global ice volume, sea level, seawater oxygen isotope values, and deep-sea temperature, and supports the potential presence of large floating Arctic ice shelves during the PGM. The existence of different glacial 'modes' calls for focussed research on the complex processes behind ice-age development. We present a glacioisostatic assessment to demonstrate how a different PGM ice-sheet configuration might affect sea-level estimates for the last interglacial. Results suggest that this may alter existing last interglacial sea-level estimates, which often use an LGM-like ice configuration, by several metres (likely upward).

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Zróżnicowanie litologiczne i wiek kemów koło Suchedniowa (Wyżyna Kielecka)

Kalicki¹,

Przepióra²,

Jabłoński³

et al. 2022

AUL. Folia Geogr. Physica

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Wzgórza i terasy kemowe położone na Płaskowyżu Suchedniowskim (północna część Wyżyny Kieleckiej) były przedmiotem badań w latach 70. XX wieku. W 2019 r. rozpoczęto nowymi metodami dalsze badania w celu określenia wieku i genezy osadów budujących te formy. Kemy powstały podczas zlodowaceń środkowopolskich (MIS 6), ok. 175–137 tys. lat temu. Urozmaicona hipsometria, ze wzgórzami i obniżeniami, spowodowała rozdzielenie wkraczającego lądolodu na dwa loby. W trakcie deglacjacji w części międzylobowej występowała duża zmienność warunków sedymentacji (5 poziomów akumulacji w profilach KR II i 4 w KR I). Spowodowało to wyższe położenie (KR II) kemów wodnolodowcowych z przewagą osadów piaskowo-żwirowych nieprzykrytych moreną. Uformowane niżej (KR I) kemy złożone, zbudowane z poziomów akumulacyjnych o naprzemiennie występujących drobniejszych osadach (kemy limnoglacjalne) i grubszych – piaskowo-żwirowych (kemy wodnolodowcowe) zostały przykryte moreną ablacyjną z głazami narzutowymi. Formy te powstały podczas deglacjacji arealnej i topnienia bloków martwego lodu. Tempo tego procesu było zmienne i trwało od kilkudziesięciu do kilku tysięcy lat, co mimo pojawiających się inwersji, potwierdzają uzyskane daty TL. Plejstoceńska terasa fluwialna (PK 1) oraz holoceńskie aluwia w dnie doliny Kamionki zostały wcięte w osady kemów i teras kemowych.

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

Cited by 3 publications

References 64 publications

Swelling and flow of expanding clays as a cause for non‐tectonic deformations in a glacial–interglacial environment: Holy Cross Mountains, Poland

Swelling and flow of expanding clays as a cause for non‐tectonic deformations in a glacial–interglacial environment: Holy Cross Mountains, Poland

Differences between the last two glacial maxima and implications for ice-sheet, δ18O, and sea-level reconstructions

Zróżnicowanie litologiczne i wiek kemów koło Suchedniowa (Wyżyna Kielecka)

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