四川盆地涪陵地区五峰组-龙马溪组一段层序格架与沉积演化Sequence Stratigraphic Framework and Sedimentary Evolution of the Wufeng Formation-the 1st Member of Longmaxi Formation in Fuling Area,Sichuan Basin
张靖宇;陆永潮;付孝悦;张士万;
摘要(Abstract):
利用野外露头、测井曲线、岩心等资料,结合层序地层学方法,在四川盆地涪陵地区五峰组-龙马溪组一段沉积构造认识的基础上,针对涪陵地区五峰组-龙马溪组一段层序格架与沉积演化开展了整体性的研究。研究表明:涪陵地区五峰组-龙马溪组一段可以划分出2个三级层序,五峰组-观音桥组为一个三级层序SQ1,由海侵体系域(TST)和高位体系域(HST)组成;龙马溪组一段可以划分为一个三级层序,由海侵体系域(TST)、早期高位体系域(EHST)、晚期高位体系域(LHST)组成;进一步,分析其层序构成特征并通过对层序地层格架的建立,提出了涪陵地区五峰组-龙马溪组一段层序受海平面、生物、火山等多因素控制的沉积演化模式,为开展页岩岩相等研究奠定了基础。
关键词(KeyWords): 层序格架;演化模式;涪陵地区
基金项目(Foundation): 国家重点基础研究发展计划(973)项目(SQ2013CB021013)
作者(Author): 张靖宇;陆永潮;付孝悦;张士万;
Email:
DOI: 10.19509/j.cnki.dzkq.2017.0409
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