气候变化领域集成服务门户(CCPortal): How much systems-tract scale; three-dimensional stratigraphic variability is present in sequence stratigraphy?: An answer from the middle Miocene Pearl River Mouth Basin

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DOI	10.1306/0122201607417001
	How much systems-tract scale; three-dimensional stratigraphic variability is present in sequence stratigraphy?: An answer from the middle Miocene Pearl River Mouth Basin
	Xu S.; Han J.; Wang Y.; He M.; Pang X.; Chen W.; Gong C.; Qin C.; Li X.; Xu S.
发表日期	2020
ISSN	0149-1423
起始页码	1261
结束页码	1285
卷号	104 期号:6
英文摘要	Prior sequence stratigraphic methods mainly employed two-dimensional (2-D) stacking patterns to reconstruct stratigraphic frameworks. The future of sequence stratigraphy will pay more attention to systems-tracts scale and three-dimensional (3-D) stratigraphic variability. Using 1.2 · 104 km2 (4.63 · 103 mi2) 3-D seismic data, tied to regional 2-D seismic lines and 21 boreholes, the present study examines systems-tract scale and 3-D stratigraphic variability of the 14.8-13.8 Ma Pearl River shelf-margin to deep-water sedimentary prisms. The studied prisms were divided into four main systems tracts, namely, highstand systems tract (HST), falling-stage systems tract (FSST), lowstand systems tract (LST), and transgressive systems tract (TST). Each systems tract is represented by a given clinoformal architecture and stacking pattern: (1) clinothem sets with aggradation to progradation are HST, (2) clinothem sets with progradation to degradation (PD) are FSST, (3) clinothem sets with progradation to aggradation (PA) are LST, and (4) clinothem sets with retrogradation are TST, LST, or HST. In addition, Pearl River FSST and LST display downdip stratigraphic variabilities which are regionally manifested in at least three ways: (1) shelf-edge deltas linked downdip to basin-floor fans, (2) shelf-edge deltas linked downdip without fans, and (3) basin-floor fans linked updip that lack deltas. In along-strike orientation, the Pearl River FSST could exhibit low-angle progradation, not just PD stacking. The LST could present retrogradational stacking, not just PA stacking. Therefore, the physical position of a systems tract is reemphasized in terms of assigning a given systems tract. The concepts of three systems tracts are then revised for chronostratigraphic significance. The LST is the lowermost systems tract of a sequence, presenting a normal regression of the shoreline as its diagnostic characteristic and including contemporaneous stratigraphic units laterally. The HST is the upper systems tract of a sequence, providing a normal regression of the shoreline as its diagnostic characteristic and including contemporaneous stratigraphic units laterally. The TST is the middle systems tract of a sequence, generating a backstep of the shoreline and excluding contemporaneous onlapping units of both the LST and HST laterally. The FSST has not been revised because FSST may be a supply-independent feature. © 2020. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Floors; Gems; Prisms; Rivers; Seismology; Highstand systems tract; Pearl River Mouth basin; Sequence stratigraphy; Stratigraphic framework; Stratigraphic variabilities; Threedimensional (3-d); Transgressive systems tracts; Two Dimensional (2 D); Stratigraphy; accretionary prism; aggradation; chronosequence; chronostratigraphy; Miocene; progradation; seismic method; sequence stratigraphy; stacking; three-dimensional modeling; two-dimensional modeling; China; Guangdong; Zhujiang Delta
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143694
作者单位	Chongqing Key Laboratory of Complex Oil and Gas Field Exploration and Development, Chongqing University of Science and Technology, Chongqing, China; State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, China; Ocean College, Zhejiang University, Hangzhou, China; Shenzhen Branch, China National Offshore Oil Corporation (CNOOC) Ltd., Shenzhen, China; Shenzhen Branch, CNOOC Ltd., Shenzhen, China; Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; University of Chinese Academy of Sciences, Beijing, People's Republic of China, Shenzhen Branch, CNOOC Ltd., Shenzhen, China; Faculty of Earth Resources, China University of Geosciences, Wuhan, China
推荐引用方式 GB/T 7714	Xu S.,Han J.,Wang Y.,et al. How much systems-tract scale; three-dimensional stratigraphic variability is present in sequence stratigraphy?: An answer from the middle Miocene Pearl River Mouth Basin[J],2020,104(6).
APA	Xu S..,Han J..,Wang Y..,He M..,Pang X..,...&Xu S..(2020).How much systems-tract scale; three-dimensional stratigraphic variability is present in sequence stratigraphy?: An answer from the middle Miocene Pearl River Mouth Basin.AAPG Bulletin,104(6).
MLA	Xu S.,et al."How much systems-tract scale; three-dimensional stratigraphic variability is present in sequence stratigraphy?: An answer from the middle Miocene Pearl River Mouth Basin".AAPG Bulletin 104.6(2020).