The linkage between longitudinal sediment routing systems and basin types in the northern South China Sea in perspective of source-to-sink

Su, Ming; Hsiung, Kan-Hsi; Zhang, Cuimei; Xie, Xinong; Yu, Ho‐Shing; Wang, Zhenfeng

doi:10.1016/j.jseaes.2015.05.011

Cited by 23 publications

(2 citation statements)

References 60 publications

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“…SF3 can be interpreted as pelagic sediments (Fig. 9); the facies is similar to pelagic deposits, as observed in other studies (e.g., Su et al, 2015;Gong et al, 2016).…”

Section: Channel Infill: Distribution Of Seismic Facies and Interpretationsupporting

confidence: 83%

Seismic Geomorphology of a Late Cretaceous Turbidite Channel system in Deepwater Kribi/Campo sub-basin, offshore Cameroon

GOUOTT¹,

Yem²,

Atangana³

et al. 2022

Preprint

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In this study, a seismic reflection dataset and well-log data were integrated to investigate the geometry and internal configuration of a turbidite channel system within the Late Cretaceous interval of the deep-water Kribi-Campo sub-basin, offshore Cameroon. This interval is characterized by a well-developed submarine channel system consisting of an early and a late-stage channel. Morphologically, the submarine channel system has a northeast-southwest trend and is U-shaped in cross-section with a length of 56 km within the study area. The early-stage channel has a relatively straight morphology and varies in width and depth from 3 to 5 km and 89 to 197 m, respectively. However, the late stage of the channel is characterized by a narrower (1 to 3 km) and shallower (41 to 103 m) incision, with sinuous morphology carved into the early channel infill. The changing interaction of differential tectonic subsidence, relative sea level, source sediment supply and slope gradient change are considered to be the major control on the geometry and internal characteristics of the submarine channel system. Sag subsidence during the Campanian led to basin deepening and the widespread development of basinal sediments as submarine fans and promotion of submarine channel system development. The filling of the channel system occurred during a long-term Maastrichtian relative sea level rise, punctuated by falls in relative sea level. Sand appears to have been fed to the channel system by the palaeo-Sanaga and palaeo-Nyong Rivers, with sand rich aprons developed were these rivers debouched into the study area. The early stage of the submarine channel is dominated by coarse-grained sediments in the southwest and fine-grained sediments in the northeast, while the late-stage channel is mainly filled with fine-grained sediments. The presence of coarse-grained sediments occur within the submarine channel axis downstream represents a potential for hydrocarbon reservoirs with enhanced petrophysical qualities due to a low depositional gradient. The geomorphological analysis of this ancient submarine channel system along the western African margin, as presented in this study, has broad implications in the understanding of the distribution of deep-water sediments with potential for hydrocarbon exploration in the region.

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“…SF3 can be interpreted as pelagic sediments (Fig. 9); the facies is similar to pelagic deposits, as observed in other studies (e.g., Su et al, 2015;Gong et al, 2016).…”

Section: Channel Infill: Distribution Of Seismic Facies and Interpretationsupporting

confidence: 83%

Seismic Geomorphology of a Late Cretaceous Turbidite Channel system in Deepwater Kribi/Campo sub-basin, offshore Cameroon

GOUOTT¹,

Yem²,

Atangana³

et al. 2022

Preprint

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“…To the west, the Central Canyon within the Xisha Trough began to develop (Su et al 2013(Su et al , 2014(Su et al , 2015. However, the low sedimentary rate in both the Yinggehai-Song Hong Basin and the Qiongdongnan Basin at this time indicate slow terrestrial erosion (Figure 8(a,b)).…”

Section: Sediment Provenancementioning

confidence: 99%

Sedimentary budget of the Northwest Sub-basin, South China Sea: controlling factors and geological implications

Ding

Clift

et al. 2019

International Geology Review

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We calculated the sedimentary budget of the Northwest Sub-basin (NWSB), South China Sea for different geological times based on interpretations of four multichannel seismic profiles across the basin with constraints from International Ocean Discovery Program (IODP) Expeditions 367 and 368 drilling results. Sedimentation was generally dominated by regional tectonic events and climate change, but complicated by local tectonic events and geographic position, which resulted in a specific sedimentary budget in the NWSB compared with other marginal basins and the Southwest Sub-basin. The sedimentation rate was relatively low following the opening of the NWSB but increased gradually during the Middle Miocene, corresponding to the uplift of the Tibetan Plateau and the Asian monsoon. It reached its peak in the Late Miocene, corresponding to uplift of the Dongsha Island region that caused intensive bypass of eroded sediments from the Baiyun Sag into the abyssal basin, and reduced again during the Pliocene because of sediment storage on the wide northern continental shelf area compared to the abyssal basin during a period of high-stand sea level. Increase in sedimentation during the Pleistocene suggests that continental erosion and sediment transport to the abyssal basin were enhanced by an intensified Asian summer monsoon and glacial-interglacial climate fluctuations. Since the opening of the NWSB, the primary sediment provenance has been from southern China, with minor contributions from the Red River, Hainan Island, as well as local uplifts on the continental shelf.

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Morpho-sedimentary features and sediment dispersal systems of the southwest end of the Ryukyu Trench: a source-to-sink approach

et al. 2017

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The linkage between longitudinal sediment routing systems and basin types in the northern South China Sea in perspective of source-to-sink

Cited by 23 publications

References 60 publications

Seismic Geomorphology of a Late Cretaceous Turbidite Channel system in Deepwater Kribi/Campo sub-basin, offshore Cameroon

Seismic Geomorphology of a Late Cretaceous Turbidite Channel system in Deepwater Kribi/Campo sub-basin, offshore Cameroon

Sedimentary budget of the Northwest Sub-basin, South China Sea: controlling factors and geological implications

Morpho-sedimentary features and sediment dispersal systems of the southwest end of the Ryukyu Trench: a source-to-sink approach

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