Advances on Depositional Mechanism of the First Member of Lungmachi Formation and Advice for Future Studies

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Song, Licai^1^2

Institute of Geomechanics, Chinese Academy of Geosciences, China Geological Survey, Beijing

100081, China^1

School of Geosciences, China University of Geosciences, Beijing

100081, China^2

关键词: Commercial development;    Distribution law;    Geochemical analysis;    Main controlling factors;    Marine shales;    Redox condition;    Upper Yangtze;    Volcanic eruptions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032095/pdf
DOI  :  10.1088/1755-1315/237/3/032095

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The marine shale of Wufeng-Lungmachi Formation (WLF) in Middle and Upper Yangtze area is the reservoir for the biggest shale gas field outside North America. Clearly explaining the formation and distribution law of this set of high-quality shales is particularly essential. This article summarizes the advances on diverse lithofacies types, elemental geochemical analyses of paleo-productivity, redox conditions, and influence of special event-volcanic eruptions (represented by K-Bentonite). Moreover, this article also points out that, current "Formation (Member)" scale of studies cannot clearly explain the formation and distribution law of the high-quality shale required by commercial development and proposes that it is particularly urgent to carry out theoretical and practical studies on the main controlling factors of vertical heterogeneity of black shales, especially the first member of Lungmachi Fm.