煤田地质与勘探2018,Vol.46Issue(2):40-48,9.DOI:10.3969/j.issn.1001-1986.2018.02.007
模式化煤系露头剖面沉积环境分析方法
Pattern analysis method of depositional environment from outcrop sections in coal measures
摘要
Abstract
Coal-bearing series,also known as coal measures,are series of genetic connected sedimentary rocks with coal seams developed.Abundant mineral resources originated from coal measures.Researches on high-resolution paleoenvironment and paleoclimate reconstructions,stratigraphic cycles and their genetic dynamics are also based on coal measures analysis.Depositional environmental analysis is a significant method to investigate coal measures.In this paper,a depositional environmental analysis has been carried out on the outcrop sections in Carboniferous coal measures in Qilian Mountains.A pattern analysis method of depositional environment has been concluded based on previous researches and our field works.This paper focuses on the analysis procedure,procedure and analysis method of sedimentary environment in field work.A five-step method were summarized,including geological stratification and description,lithological summarization and environmental interpretation,sketch lithological section mapping,depositional modelling,and environmental evolutionary summarization.The contents and methods of the analysis pattern in every step have been provided.Geological stratification and description are the foundation of depositional environmental analysis.Lithological summarization and environmental interpretation are the core works in the analysis.Sketch lithological section mapping is the principle line in the pattern method.Depositional model and evolutional summary are the emphasis in the four-step method.关键词
含煤岩系/露头剖面/岩相总结/环境解释/沉积模式Key words
coal-bearing series/outcrop section/lithological summarization/environmental interpretation/depositional model分类
天文与地球科学引用本文复制引用
鲁静,张凤海,杨敏芳,邵龙义,商晓旭..模式化煤系露头剖面沉积环境分析方法[J].煤田地质与勘探,2018,46(2):40-48,9.基金项目
中国矿业大学(北京)教改项目(J160211,J160206) (北京)
国家科技重大专项课题(2017ZX05009-002) (2017ZX05009-002)
国家自然科学基金项目(41472131) (41472131)
The Teaching Reform Project of China University of Mining and Technology(Beijing)(J160211,J160206) (Beijing)
National Science and Technology Major Project(2017ZX05009-002) (2017ZX05009-002)
National Natural Science Foundation of China(41472131) (41472131)