Paleocene sequence stratigraphy and depositional systems in the Lishui Sag, East China Sea Shelf Basin

Zhang, Ming; Zhang, Jinliang; Xu, Fei; Li, Jingzhe; Liu, Jinshui; Hou, Guowei; Zhang, Penghui

doi:10.1016/j.marpetgeo.2014.09.015

Cited by 38 publications

(25 citation statements)

References 23 publications

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“…Four systems tract, from bottom to top, are called "FSST", "LST", "TST" and "HST" (Fig. 5A), corresponding to previously interpreted falling stage systems tract, lowstand systems tract, transgressive systems tract and highstand systems tract of the Paleocene E1lU Member (see Zhang et al, 2015). Also, the simulation time periods are called ST.1, ST.2, ST.3, and ST.4, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Sequence stratigraphic surfaces, such as subaerial unconformity, correlative conformity, regressive surface of marine erosion, basal surface of forced regression, maximum regressive surface and maximum flooding surface were identified in our previous work (see Zhang et al, 2015) based on seismic characteristics, such as onlap, downlap, offlap, truncation, etc. Falling stage systems tracts (FSST) were identified in both the two members.…”

Section: Miocene Longjing Formation Yuquan Formation Liulang Formatmentioning

confidence: 99%

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Base Level Changes based on Basin Filling Modelling: a Case Study from the Paleocene Lishui Sag, East China Sea Basin

Li¹,

Liu²,

Zhang³

et al. 2020

Preprint

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Estimation of base level changes in geological records is an important topic for petroleum geologists. Taking the Paleocene Upper Lingfeng Member of Lishui Sag as an example, this paper conducted a base level reconstruction based on Basin Filling Modelling (BFM). The reconstruction was processed on the ground of a previously interpreted seismic stratigraphic framework with several assumptions and simplification.The BFM is implemented with a non-linear diffusion equation solver written in R coding that excels in shallow marine stratigraphic simulation. The modeled results fit the original stratigraphy very well. The BFM is a powerful tool for reconstructing the base level, and is an effective way to check the reasonableness of previous interpretations. Although simulation solutions may not be unique, the BFM still provides us a chance to gain some insights into the mechanism and dynamic details of the stratigraphy of sedimentary basins.

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Section: Resultsmentioning

confidence: 99%

Section: Miocene Longjing Formation Yuquan Formation Liulang Formatmentioning

confidence: 99%

Base Level Changes based on Basin Filling Modelling: a Case Study from the Paleocene Lishui Sag, East China Sea Basin

Li¹,

Liu²,

Zhang³

et al. 2020

Preprint

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“…The Lishui Sag is located in the south-west corner of the East China Sea Shelf Basin, occupying an area of 13785 km 2 [19]. The sag is a typical Cenozoic rift depression developed on the Mesozoic residual basin basement and formed by a half graben structure with faults in the east and overlapping the uplift belt in the west [1,19,20]. The Lishui Sag trends NE-SW and can be divided into four tectonic units: west sub-sag, east sub-sag, south sub-sag and the Lingfeng uplift zone.…”

Section: Geological Settingsmentioning

confidence: 99%

“…The west sub-sag and east sub-sag are separated by the Lingfeng Uplift zone, a buried basement hill and the maximum burial depth reaches nearly 8 km at the northern part of the west sub-sag ( Figure 1). The Cenozoic strata from bottom to top include the Paleocene Yueguifeng Formation (E1y), Lingfeng Formation (E1l) and Mingyuefeng Formation (E1m), Lower Eocene Oujiang Formation (E2o), The Lishui Sag has underwent four tectonic phases from the end of the Mesozoic to the Quaternary period [8,10,[22][23][24][25] (Figure 2A): (1) The syn-rift phase (Late Cretaceous to Paleocene) formed the NE-SW trending graben and half-graben depocenters on the base of the residual Mesozoic basin [9,19]. The NE-trending extensional faults indicate slab-pull forces which were correlated with the subduction of the Western Pacific Plate beneath the Eurasian Plate.…”

Section: Geological Settingsmentioning

confidence: 99%

3D-Basin Modelling of the Lishui Sag: Research of Hydrocarbon Potential, Petroleum Generation and Migration

Zhang

Guo

Liu³

et al. 2019

Energies

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The Lishui Sag is located in the southeastern part of the Taibei Depression, in the East China Sea basin, where the sag is the major hydrocarbon accumulation zone. A three dimensional modelling approach was used to estimate the mass of petroleum generation and accumulated during the evolution of the basin. Calibration of the model, based on measured maturity (vitrinite reflectance) and borehole temperatures, took into consideration two main periods of erosion events: a late Cretaceous to early Paleocene event, and an Oligocene erosion event. The maturation histories of the main source rock formations were reconstructed and show that the peak maturities have been reached in the west central part of the basin. Our study included source rock analysis, measurement of fluid inclusion homogenization temperatures, and basin history modelling to define the source rock properties, the thermal evolution and hydrocarbon generation history, and possible hydrocarbon accumulation processes in the Lishui Sag. The study found that the main hydrocarbon source for the Lishui Sag are argillaceous source rocks in the Yueguifeng Formation. The hydrocarbon generation period lasted from 58 Ma to 32 Ma. The first period of hydrocarbon accumulation lasted from 51.8 Ma to 32 Ma, and the second period lasted from 23 Ma to the present. The accumulation zones mainly located in the structural high and lithologic-fault screened reservoir filling with the hydrocarbon migrated from the deep sag in the south west direction.

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“…The East China Sea Shelf Basin (ECSSB) is one of the major Meso–Cenozoic sedimentary basins in the Chinese offshore area, located in the convergent zone between the Eurasian, Pacific and Philippine Sea plates. The zone is a typical subduction‐type plate margin (Cukur et al ., , ; Zhang et al ., ) consisting of the following structural units from west to east: Zhemin Ridge, ECSSB (Lishui, Fuzhou and Xihu depressions), Taiwan‐Sinzi Fold Belt, Okinawa Trough, Ryukyu Arc, Ryukyu Trench and Pacific Ocean (Fig. A and C).…”

Section: Geological Settingmentioning

confidence: 99%

Change from tide‐influenced deltas in a regression‐dominated set of sequences to tide‐dominated estuaries in a transgression‐dominated sequence set, East China Sea Shelf Basin

Steel

et al. 2018

Sedimentology

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The East China Sea Shelf Basin was a back‐arc basin located at the active continental margin of the western Philippine Sea Plate. This study explores facies and architectural changes from tide‐influenced deltas to tide‐dominated estuaries in transgressive–regressive cycles, as well as their controlling factors. Cores, wireline well‐logs and seismic data allow the sedimentary architectures and models of the depositional systems to be reconstructed. In the Xihu Depression of the East China Sea Shelf Basin, the stratigraphic sequences of the Eocene Pinghu Formation are interpreted to be dominated by repeated phases of deltaic progradation, but with intervening transgressive phases only thinly developed as bioturbated, open‐marine shelf deposits. The sequences of the overlying Oligocene Huagang Formation, in contrast, are interpreted as stacked, tide‐dominated estuary units, alternating with only poorly preserved regressive half‐cycles because of repeated, strong estuary down‐cutting. The intervening unconformity in the succession corresponds to the Yuquan tectonic movements, which triggered a change from extensional to compressional settings in the Xihu Depression. In the Late Eocene, extension of the Xihu Depression led to moderately high rates of subsidence (163 m Ma−1), and short‐term sea‐level falls led to multiple phases of deltaic progradations. After the Yuquan Movement, Early Oligocene compression brought overall lower rates of subsidence (110 m Ma−1), as well as sea‐level rise and stacked estuary development with significant tidal influence in the infill. The interaction of tectonics, sea‐level change and sediment supply determined the nature of the depositional systems on the shelf during the entire period, whereas the sedimentary processes were key to reworking and shaping the facies distribution, geomorphology and architectures in the back‐arc basin. This research provides an insight into spatial and temporal characterization of deltaic and estuarine systems, contributing to a better understanding of the mechanisms controlling a change in dominant coastline type, despite continued strong tidal influence.

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Paleocene sequence stratigraphy and depositional systems in the Lishui Sag, East China Sea Shelf Basin

Cited by 38 publications

References 23 publications

Base Level Changes based on Basin Filling Modelling: a Case Study from the Paleocene Lishui Sag, East China Sea Basin

Base Level Changes based on Basin Filling Modelling: a Case Study from the Paleocene Lishui Sag, East China Sea Basin

3D-Basin Modelling of the Lishui Sag: Research of Hydrocarbon Potential, Petroleum Generation and Migration

Change from tide‐influenced deltas in a regression‐dominated set of sequences to tide‐dominated estuaries in a transgression‐dominated sequence set, East China Sea Shelf Basin

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