Paleoenvironmental reconstruction of the radial sand ridge field in the South Yellow Sea (east China) since 45ka using the sediment magnetic properties and granulometry

Wang, Longsheng; Hu, Sheng; Yu, Ge; Ma, Miling; Liao, Mengna

doi:10.1016/j.jappgeo.2015.08.002

Cited by 18 publications

(7 citation statements)

References 52 publications

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“…Meanwhile, a very close correlation between sediment grain size and magnetic susceptibility has also been found and explored a lot in depth in previous studies [17][18][19][20][21]. Magnetic susceptibility is influenced by a variety of factors (sediment dynamics, early diagenesis, organic matter content, etc.…”

Section: Introductionmentioning

confidence: 93%

“…140 km from east to west. The RSRF is a large-scale combination of seafloor landforms on the modern coastal zone and inner shelf and consists of more than 70 sand ridges and corresponding tidal channels, which are generally spread to the sea in a folded fan-like manner with the Jianggang as the apex, and the ridges and grooves are distributed one after another, mostly with a water depth of 0-25 m, seldom exceeding 40 m [26,27]. The Xiyang tidal channel is located on the northwestern part of the RSRF, with the tidal flats of the middle Jiangsu coast on the west side, the Dongsha sand ridge which is the largest sand island of the RSRF on the east side, and the Liangyuesha sand ridge adjacent to the north side of the Dongsha sand ridge, and it extends in the direction of NNW-SSE, with a width of ca.…”

Section: Regional Settingsmentioning

confidence: 99%

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Characteristics and Environmental Indications of Grain Size and Magnetic Susceptibility of the Late Quaternary Sediments from the Xiyang Tidal Channel, Western South Yellow Sea

Xia,

Liu,

Zhang

2024

JMSE

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To reveal the characteristics and environmental indications for the combination of the grain size and magnetic susceptibility of coastal sediments, we provided a necessary basis for further study on their genetic mechanisms. Based on the data of grain size and magnetic susceptibility of the 36.10 m long core 07SR01 sediments in the Xiyang tidal channel of western South Yellow Sea, we analyzed their variations and correlations and further revealed their environmental indications and corresponding regional sedimentary evolution via the combination of the aforementioned analysis results, the reinterpretation results of the sedimentary sequence and the age of core 07SR01 and shallow seismic profiles, and the findings of climate and glacial–eustatic cycles during Late Quaternary. The three stages of the sedimentary evolution of the Xiyang tidal channel between marine isotope stage (MIS) 7 and MIS 5 were summarized as follows: First is the stage of marginal bank and riverbed developments in the tidal estuary under a relatively high sea level and strong hydrodynamic conditions during MIS 7 (core section: 36.10–26.65 m). The sediments deposited in this stage were mainly affected by the paleo-Changjiang River and characterized by a coarse grain size (mean: 4.02 Φ) and relatively high magnetic susceptibilities (mean: 27.06 × 10−8 m3·kg−1), with small fluctuations which were strongly and positively correlated with the sand component. Second is the stage dominated by fluviolacustrine and littoral environments with the weak hydrodynamics during MIS 6–5, in which the climate changed from cold and dry to warm and humid as the sea level rose after a drop (core section: 26.65–15.77 m). The sediments deposited in this stage were characterized by a fine grain size (mean: 5.27 Φ) and low magnetic susceptibilities with minor variations (mean: 10.83 × 10−8 m3·kg−1) which were weakly and positively correlated with the coarse silt component. Third is the stage of delta front in the tidal estuary with a relatively high sea level and strong hydrodynamics during MIS 5 (core section: 15.77–0 m). The sediments deposited in this stage were strongly influenced by the paleo-Yellow River and characterized by a relatively coarse grain size (mean: 4.86 Φ), and high magnetic susceptibilities (mean: 37.15 × 10−8 m3·kg−1) with large fluctuations which were weakly and positively correlated with the sand and coarse silt components.

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Section: Introductionmentioning

confidence: 93%

Section: Regional Settingsmentioning

confidence: 99%

Characteristics and Environmental Indications of Grain Size and Magnetic Susceptibility of the Late Quaternary Sediments from the Xiyang Tidal Channel, Western South Yellow Sea

Xia,

Liu,

Zhang

2024

JMSE

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“…This transect is located in the south of the Jiangsu coastal plain and partly across the shelf tidal sand ridge area, about 60 km south of transect X-X′. From proximal to distal locations, this transect includes cores JSWZK01, JSWZK02, JSWZK03, Y1, Y2, JSWZK04, and JSWZK05 (Figure 9, cores Y1 and Y2 are modified from Wang et al (2015) and Yin et al (2016), respectively).…”

Section: Transect Y-y′mentioning

confidence: 99%

“…FIGURE 9Facies architecture along coastal transect Y-Y′. Cores Y1 and Y2 are modified fromWang et al (2015) andYin et al (2016), respectively.…”

mentioning

confidence: 99%

Sedimentology and evolution of the Holocene radial tidal sand ridge in the south Yellow Sea, China

Xue

et al. 2023

Front. Earth Sci.

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The radial tidal sand ridge (RTSR) off the Jiangsu Coast in the south Yellow Sea is one of the most fantastic and unique natural landscapes in the world. A large number of investigations on geomorphology and marine geology have been implemented during the last several decades. The formation and evolution of the RTSR, however, are still under debate. To resolve this issue, 10 ∼30–60 m-long cores were retrieved from the Jiangsu coastal plain and offshore sand ridge field in 2018–2019. Stratigraphic transects chronologically constrained by abundant radiocarbon dates were built based on sedimentological and paleoecological (i.e., foraminifer) data from selected cores. Combined with well-documented core stratigraphy from earlier studies, an age–depth plot with a local sea-level change curve revealed that the RTSR initiated approximately 9,000 cal a BP in a sandy bedform shape under transgressive conditions, continued throughout the Holocene, but developed mostly after 1128 AD, when the Yellow River flowed southward into the Yellow Sea. Abundant sediment supply, thus, appears to have played a major role in the formation and evolution of the RTSR in the south Yellow Sea.

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“…In addition, previous studies have shown that the dissolution effects on magnetic minerals are modulated by the availability and reactivity by organic matter. When the contents of organic matter of sediments were high, both concentrations and grain size of magnetic minerals decreased (Snowball, 1993;Nowaczyk et al, 2001;Ao et al, 2010;Roberts, 2015;Wang et al, 2015). The positive relationship between χ and TOC and the negative relationship between χ ARM /χ and TOC suggested that the dissolution effects for magnetic minerals are negligible (Table 2).…”

Section: Sources and Characteristics Of Magnetic Mineralsmentioning

confidence: 99%

Paleoenvironmental reconstruction of the radial sand ridge field in the South Yellow Sea (east China) since 45ka using the sediment magnetic properties and granulometry

Cited by 18 publications

References 52 publications

Characteristics and Environmental Indications of Grain Size and Magnetic Susceptibility of the Late Quaternary Sediments from the Xiyang Tidal Channel, Western South Yellow Sea

Characteristics and Environmental Indications of Grain Size and Magnetic Susceptibility of the Late Quaternary Sediments from the Xiyang Tidal Channel, Western South Yellow Sea

Sedimentology and evolution of the Holocene radial tidal sand ridge in the south Yellow Sea, China

Indian summer monsoon variability over last 2000 years inferred from sediment magnetic characteristics in Lugu Lake, southwest China

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