The magnetic properties of Serbian loess and its environmental significance

Liu, Xiuming; Li, Zhi; Lü, Bin; Marković, Slobodan B.; Chen, JiaSheng; Guo, Hui; Ma, Miling; Zhao, Guoyong; Feng, Huan

doi:10.1007/s11434-012-5383-9

Cited by 31 publications

(17 citation statements)

References 32 publications

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“…The strong accordance of χ variations with pedostratigraphy suggests that the data represent magnetic enhancement via pedogenesis (e.g. Heller and Liu, 1984;Liu et al, 2013). Despite differences in resolution, χ variations for profiles A and B show a remarkably similar pattern and are similar to those previously observed in loess-paleosol sequences within the vast semi-arid Eurasian loess belt (e.g.…”

Section: Low-field Magnetic Susceptibility (χ)supporting

confidence: 77%

The Crvenka loess-paleosol sequence: A record of continuous grassland domination in the southern Carpathian Basin during the Late Pleistocene

Marković

Sümegi

Stevens

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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In this study, we compare two independent paleoenvironmental proxies for a loess sequence in northern Serbia, in the southern Carpathian Basin: novel n-alkane biomarkers and traditional land snail assemblages. Both are associated with other, more widely used proxy data for loess sections, such as environmental magnetism, grain size, and geochemical indices. Together, these paleoenvironmental proxy records provide evidence for the continued dominance of grasslands during the Late Pleistocene in the Southern Carpathian Basin. It is contrary to other European loess provinces, which are characterized by high diversity of Late Pleistocene environments (ranging from tundra-like to deciduous forest habitats). These findings highlight the southeastern part of Carpathian Basin as an important, but still insufficiently investigated, biogeographical refugium, and biodiversity preservation zone. The reason for this is a mostly stable paleoclimate for much of the Late Pleistocene.

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Section: Low-field Magnetic Susceptibility (χ)supporting

confidence: 77%

The Crvenka loess-paleosol sequence: A record of continuous grassland domination in the southern Carpathian Basin during the Late Pleistocene

Marković

Sümegi

Stevens

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Magnetic susceptibility values increase after cooling to the magnetite Curie temperature in the cooling curves of magnetic extracts for MIS2 and MIS3 which can be attributed to new magnetite formation at high temperatures (over 600°C) [32,33]. …”

Section: J-t Curvesmentioning

confidence: 97%

Magnetic characteristics and its environmental implications of core YSJD-86GC sediments from the southern South China Sea

et al. 2014

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Sediments of core YSJD-86GC (referred to as 86GC) collected from the southern South China Sea were selected for environmental magnetic studies. Combined with the published chronological framework, sediment magnetic properties were revealed for the study area since the MIS3 stage. The rock magnetic results indicate that low-coercivity magnetite is the main magnetic mineral within the sediments. Also, a certain amounts of hematite are present. The King plot and Day plot, which reflect the magnetic particle size, show that fine-grained pseudo-single-domain phase magnetic particles dominate the magnetic minerals in the sediments. Comparison of magnetic parameters and geochemical indicators show that magnetic properties of core 86GC sediments reflect a terrigenous input. Simultaneously, magnetic characteristics of the studied sediment are influenced by the quantity of terrigenous sediment input, oxidation-reduction conditions of the provenance area, and the transportation environment and distance. Sea level fluctuation caused by global climate change was the main factor for variation in concentration of magnetic minerals and magnetic particle size of the studied core sediments. Thus, variation of sediment magnetic properties in the study area can be used as an indirect indicator of sea level fluctuation.

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“…The enhancement of magnetic susceptibility in NLK loess most likely falls into region A in Fig. 9 of Liu et al (2013). Region A represents the area where the climate is arid, and pedogenesis is weak and dominated by physical weathering (Liu et al, 2013).…”

Section: Impacts Of Wind Strength On Magnetic Susceptibility Variationsmentioning

confidence: 99%

“…9 of Liu et al (2013). Region A represents the area where the climate is arid, and pedogenesis is weak and dominated by physical weathering (Liu et al, 2013). Therefore, we can use the "wind theory" to decipher the MS variations of NLK loess.…”

Section: Impacts Of Wind Strength On Magnetic Susceptibility Variationsmentioning

confidence: 99%

Eolian dust dispersal patterns since the last glacial period in eastern Central Asia: insights from a loess-paleosol sequence in the Ili Basin

Song

Fitzsimmons

et al. 2018

Clim. Past

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Abstract. The extensive loess deposits of the Eurasian midlatitudes provide important terrestrial archives of Quaternary climatic change. As yet, however, loess records in Central Asia are poorly understood. Here we investigate the grain size and magnetic characteristics of loess from the Nilka (NLK) section in the Ili Basin of eastern Central Asia. Weak pedogenesis suggested by frequency-dependent magnetic susceptibility (χ fd %) and magnetic susceptibility (MS) peaks in primary loess suggest that MS is more strongly influenced by allogenetic magnetic minerals than pedogenesis, and may therefore be used to indicate wind strength. This is supported by the close correlation between variations in MS and proportions of the sand-sized fraction. To further explore the temporal variability in dust transport patterns, we identified three grain size end-members (EM1, mode size 47.5 µm; EM2, 33.6 µm; EM3, 18.9 µm) which represent distinct aerodynamic environments. EM1 and EM2 are inferred to represent grain size fractions transported from proximal sources in short-term, near-surface suspension during dust outbreaks. EM3 appears to represent a continuous background dust fraction under non-dust storm conditions. Of the three end-members, EM1 is most likely the most sensitive recorder of wind strength. We compare our EM1 proportions with mean grain size from the Jingyuan section in the Chinese loess plateau, and assess these in the context of modern and Holocene climate data. Our research suggests that the Siberian High pressure system is the dominant influence on wind dynamics, resulting in loess deposition in the eastern Ili Basin. Six millennial-scale cooling (Heinrich) events can be identified in the NLK loess records. Our grain size data support the hypothesis that the Siberian High acts as teleconnection between the climatic systems of the North Atlantic and East Asia in the high northern latitudes, but not for the mid-latitude westerlies.

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The magnetic properties of Serbian loess and its environmental significance

Cited by 31 publications

References 32 publications

The Crvenka loess-paleosol sequence: A record of continuous grassland domination in the southern Carpathian Basin during the Late Pleistocene

The Crvenka loess-paleosol sequence: A record of continuous grassland domination in the southern Carpathian Basin during the Late Pleistocene

Magnetic characteristics and its environmental implications of core YSJD-86GC sediments from the southern South China Sea

Eolian dust dispersal patterns since the last glacial period in eastern Central Asia: insights from a loess-paleosol sequence in the Ili Basin

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