利用马尔可夫链分析识别内蒙古正镶白旗额里图组沉积特征

doi:10.13686/j.cnki.dzyzy.2023.01.003

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Abstract The lithologic characteristics of each layer of Elitu Formation are identified by field survey of geological section. The sedimentary cycles of the strata are studied by Markov chain analysis, and the sedimentary environment is further analyzed with the basic geological data. Two lithologic cycles characterized separately by sandstone-silty mudstone-siltstone-mudstone and sandstone-limestone-mudstone are identified, which represent the facies sequence of shallow sea continental shelf-deepwater turbidite and continental shelf shallow sea reef beach sediments respectively. Combined with the section, three facies including continental shelf, slope and basin(trough) can be further identified as several subfacies such as tidal flat beach, beach front slope, turbidite beach bar, beach, slope basin, gentle slope, deepwater trough and reef beach. Two transgression semi-cycles and one complete transgression-regression cycle can be recognized in the section. It is concluded that the final closure time of Paleo-Asian Ocean should be after the period of Elitu Formation.

Key words： Elitu Formation sedimentary environment sedimentary cycle Markov chain Inner Mongolia

Received: 08 February 2021

PACS:

P588.2

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	Articles by authors
	WANG Biao
	SHI Li-zhi
	RUAN Zhuang
	CUI Xin-yu
	LUO Li-yan

Cite this article:

WANG Biao,SHI Li-zhi,RUAN Zhuang等. SEDIMENTARY CHARACTERISTICS OF ELITU FORMATION IN ZHENGXIANGBAI QI OF INNER MONGOLIA IDENTIFIED BY MARKOV CHAIN ANALYSIS[J]. GEOLOGY AND RESOURCES, 2023, 32(1): 21-30.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2023.01.003 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2023/V32/I1/21

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