Sedimentary development of the Pearl River Estuary based on seismic stratigraphy

Tang, Cheng; Zhou, Di; Endler, Rudolf; Lin, Jinqing; Harff, Jan

doi:10.1016/j.jmarsys.2010.02.001

Cited by 25 publications

(25 citation statements)

References 33 publications

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“…4), intersecting near Core C02. Three seismic facies units with concordant reflections, named U1, U2 and U3 from the top toward the base, can be recognized in the depositional sequences with a total thickness of around 50 m, based on the classic analytical procedures of seismic stratigraphy (Mitchum et al, 1977;Tang et al, 2010) and the observed reflector continuity and amplitude and their configurations and terminations. The base of each unit is shown by a heavy solid and/or dotted line.…”

Section: Seismic Facies and Sequence Patternsmentioning

confidence: 99%

Evolution status of the distal mud deposit associated with the Pearl River, northern South China Sea continental shelf

Gao

Liu

Yang

et al. 2015

Journal of Asian Earth Sciences

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Section: Seismic Facies and Sequence Patternsmentioning

confidence: 99%

Evolution status of the distal mud deposit associated with the Pearl River, northern South China Sea continental shelf

Gao

Liu

Yang

et al. 2015

Journal of Asian Earth Sciences

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“…Additionally, the paleo Pearl River Estuary extended outward and contracted inward with the large eustatic sea-level fall and rise (Figure 1). Although different evolutionary models of the Pearl River Estuary have been proposed (Wu et al, 2007;Tang et al, 2010), they agree that geographical changes in the estuarine system altered the terrestrial input, sedimentary processes or depositional environments. Understanding of the geological framework is important for interpreting changes in the archaeal community structure in the Pear River Submarine Canyon sediments (see below).…”

Section: Geological Framework Of the Pearl River Submarine Canyon Sedmentioning

confidence: 96%

Impact of Terrestrial Input on Deep-Sea Benthic Archaeal Community Structure in South China Sea Sediments

et al. 2020

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“…Unit C-II is the upper subunit with a maximum thickness of ca 15 m (Figs 2A and 3A) and characterized by a series of seaward dipping reflectors of relatively high amplitude, interpreted as a progradational geometry (Figs 2 and 4C). S2 is rarely observed, particularly in the eastern part of the (Huang & Yim, 2007;Tang et al, 2010;Zhang et al, 2010;. Profile and core locations are shown in Fig.…”

Section: Shallow Inner Shelf (South Of Macao-lantau Island)mentioning

confidence: 99%

Pearl River sediment dispersal over its associated delta–estuary–shelf system during the Holocene

et al. 2023

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To understand the Holocene sedimentary evolution of the Pearl River associated delta–estuary–shelf system, high‐resolution seismic data were acquired from Lingdingyang Bay to the inner shelf. A Pearl‐derived Holocene subaqueous clinoform developed over the pre‐Holocene incised channel/valley network. Overlying the Holocene ravinement surface, progradational highstand and acoustically semi‐transparent or transparent transgressive system tracts are separated by a maximum flooding surface. Restricted and thick in‐channel/in‐valley retrogressive deposits represent an earlier transgressive deposit. Displaying a westward‐oriented along‐shore extent, the highstand sediment accumulated asymmetrically within 30 m water depths, corresponding to a modern hydrodynamic environment. The wedge‐shaped highstand unit thickened landward with a depocentre (>15 m) located in western Lingdingyang Bay, possibly because of higher sediment trap efficiency inside the salinity front. Preliminary analyses suggest that the Pearl River has been trapping sediment to fill its extensive estuarine system for most of the Holocene and its sediment trap efficiency is greater since the sea‐level highstand. Since ca 7.5 ka bp, the total volume of highstand sediment accumulated in the entire delta‐estuary‐shelf dispersal system was approximately 128.36 × 109 m3. The calculated highstand riverine sediment flux was 16.01 to 16.50 Mt/yr. This value is equivalent to approximately one‐fifth of the flux that occurred prior to widespread dam construction and likely related to late‐Holocene intensified anthropogenic influence in South China. Since ca 7.5 ka bp, only ca 35% of the Pearl‐derived sediment has been dispersed to offshore shelf areas from the delta‐estuary system. With the dramatic decrease in river sediment discharge in recent decades, a larger fraction of Pearl‐derived sediment transported to the shelf might have been interrupted and changed.

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Sedimentary development of the Pearl River Estuary based on seismic stratigraphy

Cited by 25 publications

References 33 publications

Evolution status of the distal mud deposit associated with the Pearl River, northern South China Sea continental shelf

Evolution status of the distal mud deposit associated with the Pearl River, northern South China Sea continental shelf

Impact of Terrestrial Input on Deep-Sea Benthic Archaeal Community Structure in South China Sea Sediments

Pearl River sediment dispersal over its associated delta–estuary–shelf system during the Holocene

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