Rock magnetism of a loess-palaeosol sequence from the western Black Sea shore (Romania)

Necula, Cristian; Dimofte, Daniela; Panaiotu, Cristian

doi:10.1093/gji/ggv250

Cited by 37 publications

(61 citation statements)

References 102 publications

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“…How ever, clear gen eral strati graphic cor re la tion of the best de vel oped loess-palaeosol se quences of Ukraine with other se quences in the Dan ube Ba sin or CLP has not yet been made. Mean while, de tailed strati graphic cor re la tions have been achieved be tween loess sec tions in south east ern Eu rope and China (Markoviae et al, 2015;Necula et al, 2015;Sümegi et al, 2018).…”

Section: Introductionmentioning

confidence: 95%

Magnetostratigraphy and magnetic susceptibility of the best developed Pleistocene loess-palaeosol sequences of Ukraine: implications for correlation and proposed chronostratigraphic models

Hlavatskyi

Бахмутов

2020

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Section: Introductionmentioning

confidence: 95%

Magnetostratigraphy and magnetic susceptibility of the best developed Pleistocene loess-palaeosol sequences of Ukraine: implications for correlation and proposed chronostratigraphic models

Hlavatskyi

Бахмутов

2020

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“…Loess-palaeosol sequences from the Middle and Lower Danube Basins (Fig. 1) have been the focus of recent research on the Quaternary in Europe56789101112, and as a result, the understanding of the Late Quaternary climate and environmental conditions in the region have been fundamentally improved. Although the studies of loess sequences in Southeastern Europe have provided local and regional information of past environments, they have not focused on identifying large scale forcing mechanisms and the climatic conditions responsible for loess-palaeosol sequences formation, particularly whether or not a Mediterranean climatic influence may have existed in the region.…”

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confidence: 99%

Tracing the influence of Mediterranean climate on Southeastern Europe during the past 350,000 years

Obreht

Zeeden

Hambach

et al. 2016

Sci Rep

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Loess-palaeosol sequences are valuable archives of past environmental changes. Although regional palaeoclimatic trends and conditions in Southeastern Europe have been inferred from loess sequences, large scale forcing mechanisms responsible for their formation have yet to be determined. Southeastern Europe is a climatically sensitive region, existing under the strong influence of both Mediterranean and continental climates. Establishment of the spatial and temporal evolution and interaction of these climatic areas is essential to understand the mechanisms of loess formation. Here we present high-resolution grain-size, environmental magnetic, spectrophotometric and geochemical data from the Stalać section in the Central Balkans (Serbia) for the past ~350,000 years. The goal of this study is to determine the influence of the Mediterranean climate during this period. Data show that the Central Balkans were under different atmospheric circulation regimes, especially during Marine Isotope Stages 9 and 7, while continental climate prevailed further north. We observe a general weakening of the Mediterranean climate influence with time. Our data suggest that Marine Isotope Stage 5 was the first interglacial in the Central Balkans that had continental climate characteristics. This prominent shift in climatic conditions resulted in unexpectedly warm and humid conditions during the last glacial.

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“…Next, magnetic susceptibility data from Chinese and European loess e.g. 61,[101][102][103][104][105] sometimes reveal for Marine Isotope Stage (MIS) 3 a soil formation phase mainly characterized by three prominent maxima in the magnetic susceptibility records (Fig. 4).…”

Section: Resultsmentioning

confidence: 99%

“…The (frequency dependent) magnetic susceptibility from loess-palaeosol records is commonly used as proxy for inferring the degree of pedogenetic overprinting of aeolian material, which is largely controlled by temperature and especially moisture availability 104 . Proxy data from the Chinese Loess Plateau and European loess belt [101][102][103][104][105] show that loess magnetic susceptibility is a reliable proxy for inferring palaeoenvironmental conditions and associated palaeoenvironmental change through time. correlation analysis.…”

Section: Methods Filter Settingsmentioning

confidence: 99%

Smoothed millennial-scale palaeoclimatic reference data as unconventional comparison targets: Application to European loess records

Zeeden

Obreht

Vereș

et al. 2020

Sci Rep

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Millennial-scale palaeoclimate variability has been documented in various terrestrial and marine palaeoclimate proxy records throughout the northern Hemisphere for the last glacial cycle. its clear expression and rapid shifts between different states of climate (Greenland Interstadials and Stadials) represents a correlation tool beyond the resolution of e.g. luminescence dating, especially relevant for terrestrial deposits. Usually, comparison of terrestrial proxy datasets and the Greenland ice cores indicates a complex expression of millennial-scale climate variability as recorded in terrestrial geoarchives including loess. Loess is the most widespread terrestrial geoarchive of the Quaternary and especially widespread over Eurasia. However, loess often records a smoothed representation of millennial-scale variability without all fidelity when compared to the Greenland data, this being a relevant limiting feature in integrating loess with other palaeoclimate records. to better understand the loess proxy-response to millennial-scale climate variability, we simulate a proxy signal smoothing by natural processes through application of low-pass filters of δ 18 O data from Greenland, a highresolution palaeoclimate reference record, alongside speleothem isotope records from the Black Sea-Mediterranean region. We show that low-pass filters represent rather simple models for better constraining the expression of millennial-scale climate variability in low sedimentation environments, and in sediments where proxy-response signals are most likely affected by natural smoothing (by e.g. bioturbation). Interestingly, smoothed datasets from Greenland and the Black Sea-Mediterranean region are most similar in the last ~15 ka and between ~50-30 ka. Between ~30-15 ka, roughly corresponding to the Last Glacial Maximum and the deglaciation, the records show dissimilarities, challenging the construction of robust correlative timescales in this age range. from our analysis it becomes apparent that patterns of palaeoclimate signals in loess-palaeosol sequences often might be better explained by smoothed Greenland reference data than the original high-resolution Greenland dataset, or other reference data. This opens the possibility to better assess the temporal resolution and palaeoclimate potential of loess-palaeosol sequences in recording supra-regional climate patterns, as well as to securely integrate loess with other chronologically better-resolved palaeoclimate records.

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Rock magnetism of a loess-palaeosol sequence from the western Black Sea shore (Romania)

Cited by 37 publications

References 102 publications

Magnetostratigraphy and magnetic susceptibility of the best developed Pleistocene loess-palaeosol sequences of Ukraine: implications for correlation and proposed chronostratigraphic models

Magnetostratigraphy and magnetic susceptibility of the best developed Pleistocene loess-palaeosol sequences of Ukraine: implications for correlation and proposed chronostratigraphic models

Tracing the influence of Mediterranean climate on Southeastern Europe during the past 350,000 years

Smoothed millennial-scale palaeoclimatic reference data as unconventional comparison targets: Application to European loess records

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