云南省南涧地区云南驿组地层特征及沉积相分析.pdfVIP

四川有色金属 ·55· SichuanNonferrousMetals 2017年3月 文章编号：1006—4079(2017)01—0055—04 云南省南涧地区云南驿组地层特征及沉积相分析 林玲，陆勇，常静 (成都理工大学地球科学学院，四J1l成都610059) 摘要：本文对云南南涧地区三条云南驿组实测地层剖面进行分析总结，讨论了云南驿组岩石 地层和生物地层特征，进而阐述了楚雄盆地上三叠统云南驿组的沉积相：云南驿组下段为典型 的滞流、还原环境的深水盆地相沉积，中段为斜坡一盆地相沉积，上段主体是一套盆地相的深水 沉积，以深海浊积扇沉积为主，部分为斜坡一盆地边缘的半深海相沉积。 关键词：云南驿组；岩石地层；生物地层；斜坡相；盆地相 中图分类号：P618 文献标志码：A Facies and CharacteristicsofYunNanYiFormationin Analysis Sedimentary Stratigraphic Nanjian Area，Yunnan LIN Ling，LUYong，CHANGJing (CollegeofGeosciences，ChengduUniversityofTechnology,Chengdu610059,China) Abstract：This andsummarizedthecharacteristicofthreemeasured sectionsof paperanalyzed stratigraphic Formationin discussedthe and features． Yunnanyi NanjianArea，Yunnan，and lithostratigraphy biostratigraphic thatthe faciesof Triassic Formationat Basin．The Then，we sedimentary explained Upper Yunnanyi Chuxiong LowerMember basinfaciesinretentionand environment．TheMiddle developedtypicaldeep-water reducing Member carbonate facies．themember basin facies，basin developed slope upper mainlydevelopeddeep-water turbidite faciesof facies，which deep-waterfan，partlybathyal slope-basinmargin． especiallydeposited facies