Genetic types and sequence stratigraphy models of Palaeogene slope break belts in Qikou Sag, Huanghua Depression, Bohai Bay Basin, Eastern China

Huang, Chunyan; Wang, Hua; Wu, Yongping; Wang, Jiahao; Chen, Si; Peigang, Ren; Liao, Yuantao; Shue, Zhao; Xia, Cunyin

doi:10.1016/j.sedgeo.2012.03.005

Cited by 63 publications

(31 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) and depositional slope break belts (Fig. ) agree well with the concepts and features proposed by earlier researchers (Fan and Li, 1999; Lin et al ., ; Wang et al ., ; Ren et al ., ; Liu et al ., ; Xu, ; Huang et al ., ).…”

Section: Types Of Slope Break Belt and Subdivision Of Slope Break Systemmentioning

confidence: 99%

“…Thus, the Southern Gentle Slope System is an association of multiple kinds of slope break, extremely similar to the research results of most rift lacustrine basins in eastern China (Fan and Li, ; Lin et al ., ; Wang et al ., ; Ren et al ., ; Xu, ; Huang et al ., ).…”

Section: Types Of Slope Break Belt and Subdivision Of Slope Break Systemmentioning

confidence: 99%

“…Lin et al ., ; Lin et al ., ; Li et al ., ; Wang et al ., ; Prather, ; Paton et al ., ; Zagrarni et al ., ; Catuneanu et al ., ; Fyhn et al ., ). Currently, many researchers proposed the concept of the lacustrine basin slope break belt through studies of continental lacustrine sequence stratigraphy (Fan and Li, ; Lin et al ., ; Wang et al ., ; Ren et al ., ; Liu et al ., ; Xu 2006; Huang et al ., ) and divided it into a tectonic slope break belt, erosional slope break belt and depositional slope break belt according to their origin. They also proposed that the slope break belt controls the developing pattern of the sequence, deposition and even traps, which in turn controls the development of reservoir sandbodies and more subtle traps.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Paleogene of the Huanghekou Sag in the Bohai Bay Basin, NE China: deposition–erosion response to a slope break system of rift lacustrine basins

et al. 2013

View full text Add to dashboard Cite

The sequence architecture and depositional systems of the Paleogene lacustrine rift succession in the Huanghekou Sag, Bohai Bay Basin, NE China were investigated based on seismic profiles, combined with well log and core data. Four second-order or composite sequences and seven third-order sequences were identified. The depositional systems identified in the basin include: fan delta, braid delta, meander fluvial delta, lacustrine and sublacustrine fan. Identification of the slope break was conducted combining the interpretation of faults of each sequence and the identification of syndepositional faults, based on the subdivision of sequence stratigraphy and analysis of depositional systems. Multiple geomorphologic units were recognized in the Paleogene of the Huanghekou Sag including faults, flexures, depositional slope break belts, ditch-valleys and sub-uplifts in the central sag. Using genetic division principles and taking into consideration tectonic features of the Paleogene of the Huanghekou Sag, the study area was divided into the Northern Steep Slope/Fault Slope Break System, the Southern Gentle Slope Break System and T10 Tectonic Slope Break System/T10 Tectonic Belt.Responses of slope break systems to deposition-erosion are shown as: (1) basin marginal slope break is the boundary of the eroded area and provenance area; (2) ditch-valley formed by different kinds of slope break belts is a good transport bypass for source materials; (3) shape of the slope break belt of the slope break system controls sediments types; (4) the ditch-valley and sub-sag of a slope break system is an unloading area for sediments; and (5) due to their different origins, association characteristics and developing patterns, the Paleogene slope break belt systems in the Huanghekou Sag show different controls on depositional systems. The Northern Fault Slope Break system controls the deposition of a fan delta-lacustrine-subaqueous fan, the Southern Gentle Slope Break system controls the deposition of a fluvial-deltaicshallow lacustrine and sublacustrine fan, and the T10 Tectonic Slope Break System controls the deposition of shallow lacustrine beach bar sandbodies. The existence of a slope break system is a necessary but not a sufficient condition for studying sandbody development. The formation of effective sandbodies along the slope break depends on the reasonable coupling of effective provenance, necessary association patterns of slope break belt, adequate unloading space and creation of definite accommodation space.

show abstract

Section: Types Of Slope Break Belt and Subdivision Of Slope Break Systemmentioning

confidence: 99%

Section: Types Of Slope Break Belt and Subdivision Of Slope Break Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Paleogene of the Huanghekou Sag in the Bohai Bay Basin, NE China: deposition–erosion response to a slope break system of rift lacustrine basins

et al. 2013

View full text Add to dashboard Cite

show abstract

“…6) and is surrounded by the Saleitian uplift in the east, the Gangxian uplift in the west, the Beitang sag in the north, and the Chengnin uplift in the south (Zhou et al, 2012;Huang et al, 2012). The tectonic framework of this area can be divided into four buried hills (Tanggu, Nandagang, Beidagang, and Yangsanmu) and three sags (Qikou main sag, Qibei sag, and Qinan sag).…”

Section: Geological Settingmentioning

confidence: 99%

Mapping local singularities using magnetic data to investigate the volcanic rocks of the Qikou depression, Dagang oilfield, eastern China

Chen

Cheng

Liu

et al. 2013

Nonlin. Processes Geophys.

View full text Add to dashboard Cite

The spatial structural characteristics of geological anomaly, including singularity and self-similarity, can be analysed using fractal or multifractal modelling. Here we apply the multifractal methods to potential fields to demonstrate that singularities can characterise geological bodies, including rock density and magnetic susceptibility. In addition to enhancing weak gravity and magnetic anomalies with respect to either strong or weak background levels, the local singularity index (α ≈ 2) can be used to delineate the edges of geological bodies. Two models were established to evaluate the effectiveness of mapping singularities for extracting weak anomalies and delineating edges of buried geological bodies. The Qikou depression of the Dagang oilfield in eastern China has been chosen as a study area for demonstrating the extraction of weak anomalies of volcanic rocks, using the singularity mapping technique to analyse complex magnetic anomalies caused by complex geological background. The results have shown that the singularities of magnetic data mapped in the paper are associated with buried volcanic rocks, which have been verified by both drilling and seismic survey, and the S–N and E–W faults in the region. The targets delineated for deeply seated faults and volcanic rocks in the Qikou depression should be further investigated for the potential application in undiscovered oil and gas reservoirs exploration

show abstract

“…Various combinations of syndepositional faults and intensity of activity not only directly control the sequence stratigraphic patterns, but also affect the development of provenance systems, paleo-current systems, sand dispersal systems and depositional systems (Ravnas and Steel 1998;Lin et al 2000;Hans et al 2002;Feng 2006). Within a sequence stratigraphic framework, comprehensive analyses of sedimentary infill and syndepositional tectonism are the key to revealing spatial and temporal distributions of source rocks, reservoirs, and cap rocks (Xu et al 2008;Huang et al 2012). A relatively new idea in tectono-sedimentology that has been successful in hydrocarbon exploration is to analyze response relationships between syndepositional faulting and sequence stratigraphic patterns, sedimentary infill features, and the configuration of source, reservoir and seal (Gawthorpe and Leeder 2000;Devault and Jeremiah 2002;Lin et al 2005;Liao et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Differential control of syndepositional faults on sequence stratigraphy and depositional systems during main rift I stage in the southeastern fault zone of Qingxi Sag, Jiuquan Basin, Northwestern China

Zhang

Wang

Liao

et al. 2015

J Petrol Explor Prod Technol

Self Cite

View full text Add to dashboard Cite

In active rift basins, syndepositional faults exert a major control on sequence stratigraphic patterns and depositional system features, which together determine reservoir distribution, geometry, and quality. In this study, we analyze syndepositional fault characteristics of the main rift I stage in the southeastern fault zone of the Qingxi Sag, Jiuquan Basin. The syndepositional faults are marked by boundary fault with high dip angle and strong activity in the western section, and both boundary fault and associated secondary fault with relatively low dip angles and weak activity in the eastern section. In response to these different fault patterns and activity intensities, the resulting sequence stratigraphic and depositional system features are different in the western and eastern fault zones. The southeastern basin margin is divided into steep slope fault belt in the west and fault terrace belt in the east, and two corresponding types of sequence stratigraphic patterns developed. Contrastive analysis of the depositional systems highlights that they differed in sediment dispersal patterns, distribution scales, development positions, and sediment physical properties. Reservoirs associated with the depositional systems were further differentiated into four types. Analyzing the characteristics of the four types of reservoirs and their corresponding traps provides a useful reference for the deployment of future hydrocarbon exploration in the study area.

show abstract

Genetic types and sequence stratigraphy models of Palaeogene slope break belts in Qikou Sag, Huanghua Depression, Bohai Bay Basin, Eastern China

Cited by 63 publications

References 18 publications

Paleogene of the Huanghekou Sag in the Bohai Bay Basin, NE China: deposition–erosion response to a slope break system of rift lacustrine basins

Paleogene of the Huanghekou Sag in the Bohai Bay Basin, NE China: deposition–erosion response to a slope break system of rift lacustrine basins

Mapping local singularities using magnetic data to investigate the volcanic rocks of the Qikou depression, Dagang oilfield, eastern China

Differential control of syndepositional faults on sequence stratigraphy and depositional systems during main rift I stage in the southeastern fault zone of Qingxi Sag, Jiuquan Basin, Northwestern China

Contact Info

Product

Resources

About