Similarities among glacials and interglacials in the LR04 benthic oxygen isotope stack over the last 1.014 million years revealed by cluster analysis and a DTW algorithm

Wieczorek, Dariusz; Stachura, Michał; Wachecka-Kotkowska, Lucyna; Marks, Leszek; Krzyszkowski, Dariusz; Zieliński, Artur; Karaś, Marta

doi:10.1016/j.gloplacha.2021.103521

Cited by 4 publications

(4 citation statements)

References 67 publications

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“…Climate and glacial shifts depend on changes in insolation, solar obliquity and other factors. Moreover, Bajo et al (2020) suggest that it is both inaccurate and misleading and as such the 100 ka cycle should probably be discontinued; counter to previous views that the MPT could have been as recent as 0.7 Ma ago (Wieczorek et al, 2021). What makes us confused is whether or not the MPT should probably also be discontinued, or if it should simply be corrected from 0.8 to 0.6 Ma?…”

Section: Mechanism Of Glaciationmentioning

confidence: 94%

“…Antarctic icebergs provide a connection between the Southern Hemisphere and Northern Hemisphere (Starr et al, 2021). At the same time, a local cooling event was recognized approximately 0.6 Ma ago in Greenland (Moseley et al, 2021) and more extreme glacial stages occurred 0.66 Ma ago (Wieczorek et al, 2021). Research on human evolution and records in France date to around 0.7 Ma (stratum), when cold conditions became too severe (Moncel et al, 2021).…”

Section: Synchronization Of Global Climate Changementioning

confidence: 99%

“…6 to 0. 8 Ma (Shi, 1998); 6, Antarctic lower CO 2 age 0.65 and 0.75 Ma (Lüthi et al, 2008); 7, Greenland low temperatures, one was 0.63 Ma, another was 0.74 Ma (Barker et al, 2011); 8, 0.4-05 Ma, 0.6-0.7 Ma in the North Atlantic (Lear et al, 2016); 9, 0.6-0.7 Ma in the Northern Hemisphere (Willeit et al, 2019); 10, local cooling event recognized at around 0.6 Ma ago in the High Arctic (Moseley et al, 2021); 11, oxygen isotope curve LR04 more extreme glacial stages about 0.66 Ma ago, 604-704 ka (Wieczorek et al, 2021); 12, France records dated to around 0.7 Ma (stratum) and 0.45 Ma, severe cold conditions (Moncel et al, 2021); 13, Antarctic higher dust records 0.6-0.7 Ma (Brook and Brook, 2018). atmospheric physical field is a manifestation of the changes in the geophysical field.…”

Section: Mechanism Of Glaciationmentioning

confidence: 99%

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A Middle Pleistocene Glaciation Record from Lacustrine Sediments in the Western Tibetan Plateau and Discussion on Climate Change

Zhao

2023

Acta Geologica Sinica (Eng)

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The Tibetan Plateau is an important area for studying global climate change, but the answers to many scientific problems remain unknown. Here, we present new information from the lacustrine sedimentary record in the western Tibetan Plateau, related to the third most‐recent glaciations. Continuous sediment data, including sporopollen, particle size, total organic carbon, mass susceptibility, CaCO3, CaSO4, BaSO4 contents and chronological data, were reconstructed and revealed that climate and environmental conditions obviously and distinctly changed between 600 and 700 thousand years ago. In comparison, the data obtained from the Guliya ice core in this area also corresponds to the global glacial climatic characteristics recorded in basin sediments in the eastern and southeastern regions of the plateau and to the information obtained from ice cores in the Antarctic and Arctic regions. In this study, we conclude that the main reason for the glaciations and new tectonic movement must be a geomagnetic polarity reversal 774 thousand years ago (from Matuyama to Brunhes). Indeed, the results of this study suggest that the described reversal event might have influenced the current global climate pattern and will continue to impact climatic changes in the future.

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Section: Mechanism Of Glaciationmentioning

confidence: 94%

Section: Synchronization Of Global Climate Changementioning

confidence: 99%

Section: Mechanism Of Glaciationmentioning

confidence: 99%

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A Middle Pleistocene Glaciation Record from Lacustrine Sediments in the Western Tibetan Plateau and Discussion on Climate Change

Zhao

2023

Acta Geologica Sinica (Eng)

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“…The thick, dark yellowish-brown D-S4 soil at Dolynske with a characteristic magnetic susceptibility pattern and stratigraphic position is clearly correlated with the strongly developed dark reddish-brown R-S4 soil at Roksolany (Figure 9), and, therefore, with MIS 11. Correlation with one of the best developed and longest interglacials of the past 800 ka, MIS 11 [28,242,282,283], better explains the higher degree of pedogenesis in the case of these pedocomplexes. The best expression of intensely warm and humid climatic conditions of MIS 11 is given by the strongest chromic palaeosol at Kurortne, the K-S4.…”

Section: Zavadivka Superunit (Mis 9-11)mentioning

confidence: 97%

Early–Middle Pleistocene Magnetostratigraphic and Rock Magnetic Records of the Dolynske Section (Lower Danube, Ukraine) and Their Application to the Correlation of Loess–Palaeosol Sequences in Eastern and South-Eastern Europe

Hlavatskyi

Бахмутов

2021

Quaternary

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We present new palaeomagnetic and rock magnetic results with a stratigraphic interpretation of the late Early–Middle Pleistocene deposits exposed on the left bank of the River Danube at Dolynske, southern Ukraine. A thick succession of water-lain facies is succeeded by reddish-brown clayey soils, topped by a high-resolution loess–palaeosol sequence. These constitute one of the most complete recently discovered palaeoclimate archives in the Lower Danube Basin. The suggested stratigraphy is based on the position of the Matuyama–Brunhes boundary, rock magnetic, palaeopedological and sedimentological proxies, and it is confidently correlated with other loess records in the region (Roksolany and Kurortne), as well as with the marine isotope stratigraphy. The magnetic susceptibility records and palaeosol characteristics at Dolynske show an outstanding pattern that is transitional between eastern and south-eastern European loess records. Our data confirm that the well-developed S4 soil unit in Ukraine, and S5 units in Romania, Bulgaria and Serbia, correlate with the warm MIS 11. Furthermore, we suggest the correlation of rubified S6 palaeosols in Romania and Bulgaria and the V-S7–V-S8 double palaeosol in Serbia with S6 in Ukraine, a strong Mediterranean-type palaeosol which corresponds to MIS 15. Our new results do not support the hypothesis of a large magnetic lock-in depth like that previously interpreted for the Danube loess, and they prove that the Matuyama–Brunhes boundary is located within the palaeosol unit corresponding to MIS 19. The proposed stratigraphic correlation scheme may serve as a potential basis for further regional and global Pleistocene climatic reconstructions.

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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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Similarities among glacials and interglacials in the LR04 benthic oxygen isotope stack over the last 1.014 million years revealed by cluster analysis and a DTW algorithm

Cited by 4 publications

References 67 publications

A Middle Pleistocene Glaciation Record from Lacustrine Sediments in the Western Tibetan Plateau and Discussion on Climate Change

A Middle Pleistocene Glaciation Record from Lacustrine Sediments in the Western Tibetan Plateau and Discussion on Climate Change

Early–Middle Pleistocene Magnetostratigraphic and Rock Magnetic Records of the Dolynske Section (Lower Danube, Ukraine) and Their Application to the Correlation of Loess–Palaeosol Sequences in Eastern and South-Eastern Europe

Zróżnicowanie litologiczne i wiek kemów koło Suchedniowa (Wyżyna Kielecka)

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