云南镇雄地区飞仙关组岩层基本层序与沉积环境  

THE BASIC SEQUENCE AND SEDIMENTARY ENVIRONMENT OF FEIXIANGUAN FORMATION IN ZHENXIONG AREA,YUNNAN

作　　者：李兴义 刘以成 吕俊 LI Xing-yi;LIU Yi-cheng;LU Jun(International Company(Ltd),Yunnan Geology & Mineral Resources,Kunming 650051)

机构地区：[1]云南地矿国际股份有限公司,云南昆明650051

出　　处：《云南地质》2019年第1期1-9,共9页Yunnan Geology

基　　金：云南乌蒙山区1:5万五德;芒部;镇雄县;周骥站四幅区域地质调查(项目编码:121201010000150002-10)

摘　　要：通过1∶5万芒部幅、镇雄县幅区域地质调查,出露于滇东北镇雄地区的下三叠统飞仙关组(T_1f)可进一步划分为3个岩性段,各岩性段岩层基本层序特征有所不同,并且各岩性段可划分出多种类型的基本层序。总的来看下三叠统飞仙关组(T_1f^1)主要形成于潮坪沉积环境,少部分形成于为河流沉积和浅海环境。According to the geological survey of 1∶50000 Mangbu sheet and Zhenxiong sheet,Lower Triassic Feixianguan Formation(T1f )can be divided into 3 lithologic members.The basic sequence of them are different.Each lithologic member can be divided into various basic sequence.In general,Lower Triassic Feixianguan Formation is formed mainly in the tidal flat environment,whereas a minor part formed in the river sedimentation and neritic environment.

关 键 词：飞仙关组 基本层序 沉积环境 云南镇雄地区 

分 类 号：O534.51[理学—等离子体物理]