Changes in inner- to outer-shelf delta architecture, Oligocene to Quaternary Pearl River shelf-margin prism, northern South China Sea

Lin, Changsong; He, Manchao; Steel, R. J.; Zhang, Zhongtao; Li, Hao; Zhang, Bo; Wu, Wei; Shu, Liangfeng; Tian, Hongxun; Zhang, Xin; Xing, Zuochang; Wang, Siqi; Zhang, Manli

doi:10.1016/j.margeo.2018.07.009

Cited by 38 publications

(32 citation statements)

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“…2d); and the continental shelf-slope passive continental margin depression since the Neogene ( Fig. 2; Li et al, 1999;Hao et al, 2000;Zhang et al, 2007Zhang et al, , 2009Shao et al, 2010;Zhang, 2010;Cai et al, 2013;Lin et al, 2018a).…”

Section: Basin Structure and Sedimentary Infillingmentioning

confidence: 99%

Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea

Zhang

Feng

Yao

et al. 2021

Acta Geologica Sinica (Eng)

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Deepwater oil and gas exploration has become a global hotspot in recent years and the study of the deep waters of marginal seas is an important frontier research area. The South China Sea (SCS) is a typical marginal sea that includes Paleo SCS and New SCS tectonic cycles. The latter includes continental marginal rifting, intercontinental oceanic expansion and oceanic shrinking, which controlled the evolution of basins, and the generation, migration and accumulation of hydrocarbons in the deepwater basins on the continental margin of the northern SCS. In the Paleogene, the basins rifted along the margin of the continent and were filled mainly with sediments in marine-continental transitional environments. In the Neogene-Quaternary, due to thermal subsidence, neritic-abyssal facies sediments from the passive continental margin of the SCS mainly filled the basins. The source rocks include mainly Oligocene coal-bearing deltaic and marine mudstones, which were heated by multiple events with high geothermal temperature and terrestrial heat flow, resulting in the generation of gas and oil. The faults, diapirs and sandstones controlled the migration of hydrocarbons that accumulated principally in a large canyon channel, a continental deepwater fan, and a shelf-margin delta.

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Section: Basin Structure and Sedimentary Infillingmentioning

confidence: 99%

Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea

Zhang

Feng

Yao

et al. 2021

Acta Geologica Sinica (Eng)

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“…The dark mudstone with an abundant biodisturbed structure of FA6 represents the subaqueous tributary bay Figure 2. Sequence stratigraphy framework and depositional evolution of the Early-Mid Miocene in the northern Pearl River Mouth Basin (sequence divisions and fossil zones 19,[25][26][27] , tectonic and climatic events 28 ).…”

Section: Resultsmentioning

confidence: 99%

“…Despite the extensive research on the classification of the stratigraphic sequence of the Early-Mid Miocene in the study area 39 , a consensus remains to be agreed upon. A composite sequence 27 , the definition adopted in this paper, emphasizes the sedimentary cycle controlled by the regional base level and is limited by the regional www.nature.com/scientificreports/ unconformity 27,40 . Composite sequences are core to the establishment of a regional sequence stratigraphic framework 27,41 , and the secondary sequence boundary can be further identified in its interior, with the drilling data employed for the subsequent correction.…”

Section: Seismic Faciesmentioning

confidence: 99%

“…A composite sequence 27 , the definition adopted in this paper, emphasizes the sedimentary cycle controlled by the regional base level and is limited by the regional www.nature.com/scientificreports/ unconformity 27,40 . Composite sequences are core to the establishment of a regional sequence stratigraphic framework 27,41 , and the secondary sequence boundary can be further identified in its interior, with the drilling data employed for the subsequent correction. The age of the sequence boundary is determined via calcareous ultramicrofossil and foraminifer fossils 18,25,42 .…”

Section: Seismic Faciesmentioning

confidence: 99%

“…2 ).

Figure 2 Sequence stratigraphy framework and depositional evolution of the Early-Mid Miocene in the northern Pearl River Mouth Basin (sequence divisions and fossil zones 19 , 25 – 27 , tectonic and climatic events 28 ). …”

Section: Introductionmentioning

confidence: 99%

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Sedimentary evolution and controlling factors of Early-Mid Miocene Deltaic systems in the Northern Pearl River Mouth Basin, South China Sea

Wang

Lin

Zhang³

et al. 2021

Sci Rep

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The Pearl River Mouth Basin is located at the northern continental shelf of the South China Sea. Since the early Miocene, the Paleo-pearl river transported a large amount of sediments to the northwest of the basin and resulted in the formation of a large-scale river-delta depositional system, which has become an important oil and gas reservoir in the study area. In the current paper, we investigate the characteristics and evolution of fluvial-deltaic depositional systems and their controlling factors, including sea level change, tectonic subsidence and sediment supply on the basis of 3D seismic, well logging and core data. Early-Mid Miocene succession can be divided into two second-order sequences (CS1–CS2) and eight third-order sequences (S1–S8). Deltaic systems developed in S1–S2 are relatively coarse in grain size, and the delta plain deposits are dominated by thickly stacked (100–180 m) distributary channel sand bodies and interpreted as braided delta depositional system. In the early stage (S1–S2), the braided delta systems mainly distributed in the west of the Baiyun Sag, which were proceeded by a retreat to the south of the Enping Sag along with sharply rising sea level. Following the transgression of S2, the provenance of the Paleo-Pearl River extended to the coastal region of South China, and the papleoclimate changed from warm and humid to dry and cold in the early Miocene, leading to the development of transition of braided river delta to meandering river delta, which was characterized by relatively fine grain deposits. During the deposition of S3–S6, well sorted and rounded fine sandstones of deltaic front deposits accumulated in the study area. The retrogradation to accretion and subsequent progradation of these meander delta systems are attributed to the sea level change in the study area. During the deposition of S7–S8, the delta front retreated to the south of the Enping depression as a result of minor sea level rise, reduction in sediment input, and subsidence rate. This resulted in the development of a wave-controlled deltaic depositional system.

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Seismic Sequence and Source Analysis of Typical Sandstone Reservoirs

Chen,

Fan,

Wang

et al. 2024

Chem Technol Fuels Oils

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Changes in inner- to outer-shelf delta architecture, Oligocene to Quaternary Pearl River shelf-margin prism, northern South China Sea

Cited by 38 publications

References 50 publications

Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea

Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea

Sedimentary evolution and controlling factors of Early-Mid Miocene Deltaic systems in the Northern Pearl River Mouth Basin, South China Sea

Seismic Sequence and Source Analysis of Typical Sandstone Reservoirs

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