Late Quaternary palaeosols in the Yangtze Delta, China, and their palaeoenvironmental implications

Chen, Qingqiang; Li, Congxian; Ping, Li; Liu, Baozhu; Sun, Hao H.

doi:10.1016/j.geomorph.2008.01.015

Cited by 21 publications

(22 citation statements)

References 53 publications

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“…The study area was briefly exposed subaerially, as marked by the stiff muds of the LGM (42.20-41.30 m) when global sea level fell (Figs. 2, S1;Chen et al, 2008). The Yangtze delta of the study area formed only in the Holocene.…”

Section: Accepted Manuscriptmentioning

confidence: 96%

Connection of the proto-Yangtze River to the East China Sea traced by sediment magnetic properties

et al. 2018

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The evolution of the Yangtze River, and specifically how and when it connected to the East China Sea, has been hotly debated with regard to possible linkages with the so-called 'Cenozoic Topographic Reversal' (tectonic tilting of continental east China in the Cenozoic) and particularly the relationship to the uplift history of the Tibetan Plateau. Resolving this key question would shed light on the development of large Asian rivers and related changes in landforms and monsoon climate during this interval. Here, we use the magnetic properties of both Plio-Quaternary sediments in the Yangtze delta and of surficial river sediments to identify a key mid-late Quaternary switch in sediment source-sink relationships. Our results reveal a fundamental shift in sediment

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Section: Accepted Manuscriptmentioning

confidence: 96%

Connection of the proto-Yangtze River to the East China Sea traced by sediment magnetic properties

et al. 2018

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“…The stiff mud was characterized by abundant Fe and Mn oxides, calcareous nodules and leaching structures, and is recognized as a basal palaeosol formed during the late Pleistocene ( Fig. 4; Li et al, 2000;Chen et al, 2008). Its colour varied from dark greenish grey to brownish grey in different cores.…”

Section: Stratigraphic Framework and Sedimentary Facies In Holocene Cmentioning

confidence: 99%

Early to mid‐Holocene rapid sea‐level rise and coastal response on the southern Yangtze delta plain, China

Wang

Zhan

Long

et al. 2013

J Quaternary Science

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We used accelerator mass spectrometry (AMS) 14C‐dated sediments of the Holocene basal supratidal flat to upper tidal flat facies in 11 cores on the southern Yangtze delta plain to reconstruct relative sea levels of 8.5–8.0 cal ka BP. Three cores were further AMS 14C dated and used to examine the evolution of sedimentary geomorphological environments in response to the rapid sea‐level rise during the early to mid‐Holocene. Results demonstrate relative sea‐level rise of around 30 mm a−1 from 8.5 to 8.3 cal ka BP and around 10 mm a−1 from 8.3 to 8.0 cal ka BP. Retrogradation from supratidal to lower tidal flat environments occurred in response to the rapid sea‐level rise at 8.5–8.3 cal ka BP, and aggradation from middle to upper tidal flat occurred at 8.3–7.9 cal ka BP. Further retreat of the tidal flat at 7.9–7.2 cal ka BP implies a mean sea‐level rise rate exceeding 5 mm a−1 at this time. We suggest that the rapid relative sea‐level rise during 8.3–8.5 cal ka BP and subsequent slower rise caused drastic changes in the coastal zone and that these changes are key phenomena for understanding the coastal response to future sea‐level rise.

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“…Previous studies [15,25] suggested that multiple layers of stiff clay, found in the late Quaternary sedimentary record of the Yangtze Delta, could serve as regional stratigraphic markers for stratigraphical division of late (Fig. 4).…”

Section: Stratigraphy Foraminifera Distributions and Grain-size Varimentioning

confidence: 97%

Mineral Magnetic Properties and Late Quaternary Transgressions Recorded by the Borehole WJ in the Taihu Plain, China

Chen

Wang

Qiang

et al. 2013

Chinese J of Geophysics

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With paleomagnetism and AMS14 C dating results, we reconstructed the depositional environmental evolution and marine transgression events during the Late Quaternary by examining the lithology, grain size, magnetic properties, and foraminifera of sediments from a borehole WJ in the Taihu plain of southern Yangtze Delta, China. We also investigated the application of magnetic proxies to distinguishing depositional environments in the estuarine-deltaic area. The results show that the sediment sequence of borehole WJ could be divided into four periods including Mid-Pleistocene stage I, Mid-Pleistocene stage II, Late Pleistocene, and Holocene. Their depositional geomorphological conditions were fluvial-lacustrine plain, coast-terrace, mouth bar-estuarytidal flat-terrace, and lacustrine plain, respectively. Three transgression events were revealed by the borehole WJ, which happened during the late stage of Mid-Pleistocene, marine isotope stage (MIS) 5 and MIS3 of LatePleistocene. The MIS5e transgression was the strongest one and the transgression in the late stage of MIS3 intensified significantly. Magnetic properties were strongest in the tidal flat and mouth bar sediments, with notably high values of χ lf , SIRM and HIRM.

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Late Quaternary palaeosols in the Yangtze Delta, China, and their palaeoenvironmental implications

Cited by 21 publications

References 53 publications

Connection of the proto-Yangtze River to the East China Sea traced by sediment magnetic properties

Connection of the proto-Yangtze River to the East China Sea traced by sediment magnetic properties

Early to mid‐Holocene rapid sea‐level rise and coastal response on the southern Yangtze delta plain, China

Mineral Magnetic Properties and Late Quaternary Transgressions Recorded by the Borehole WJ in the Taihu Plain, China

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