Earth Science Frontiers ›› 2024, Vol. 31 ›› Issue (1): 284-296.DOI: 10.13745/j.esf.sf.2024.1.30

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Fluctuation analysis for sedimentary basins: Review and outlook

JIN Zhijun1,2,3(), CHEN Shuping4, ZHANG Rui1,2,3   

  1. 1. Institute of Energy, Peking University, Beijing 100871, China
    2. MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China
    3. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, China
    4. State Key Laboratory of Petroleum Resources and Prospecting, College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China
  • Received:2024-01-30 Revised:2024-02-03 Online:2024-01-25 Published:2024-01-25

Abstract:

The fluctuation of sedimentary basins is the primary manifestation of crustal movement within the plates, while the formation and evolution of the basins result from the superposition of various fluctuation processes within the Earth system. Fluctuation analysis for sedimentary basins involves decomposition of periodic fluctuation curves from sedimentation rate time series, which has led to a new understanding of the evolutionary history of sedimentary basins. New insights include the fluctuation cycles controlling basin evolution and hydrocarbon accumulation episodes; the relationships between basin crustal uplift/subsidence and hydrocarbon generation or thermal evolution; the spatial-temporal distribution of unconformities and erosion recovery; the spatial-temporal distribution of stratigraphic frameworks and configuration of source-reservoir-cap strata controlled by the superposition of multi-scale fluctuation processes; and the relationship between tectonic evolution patterns and hydrocarbon reservoir preservation. Through fluctuation analysis by integrating basin formation and hydrocarbon generation and accumulation with crustal fluctuation, a quantitative description of the dynamic evolution process of hydrocarbon accumulation can be achieved to guide oil and gas exploration practices. Future outlooks for this research field are clarifying the mechanism of basin fluctuation driven by long-term astronomical periods and deep Earth dynamic cycles, integrating geological evidence with numerical simulation techniques, advancing the fluctuation analysis method, and promoting the use of new theoretical insights to comprehensively understand the multi-spherical interactions and their environmental and resource impacts. Leveraging the predictive value of basin fluctuation analysis in hydrocarbon accumulation patterns can provide scientific support for the exploration and long-term evaluation of oil and gas resources.

Key words: multi-spherical interactions, crustal fluctuations, geodynamics, astronomical cycles, hydrocarbon accumulation, source rocks

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