桂东北富川地区泥盆纪层序地层划分  

DEVONIAN SEQUENCE STRATIGRAPHY IN THE FUCHUAN AREA, NORTHEASTERN GUANGXI

作　　者：邵小阳 李文辉 罗锡宜 闫亚鹏 李坤 刘建雄 黄继春 SHAO Xiao-yang;LI Wen-hui;LUO Xi-yi;YAN Ya-peng;LI Kun;LIU Jian-xiong and HUANG Ji-chun(Foshan Geological Bureau of Guangdong Province,Foshan 52800)

机构地区：[1]广东省佛山地质局,广东佛山528000

出　　处：《地层学杂志》2018年第3期344-351,共8页Journal of Stratigraphy

基　　金：中国地质调查局"广西1:5万桃川镇(G49E018013);麦岭(G49E018014);源口(G49E019013);福利幅(G49E019014)区域地质矿产调查(编号:1212011220518)"项目资助

摘　　要：桂东北富川地区泥盆纪地层分布广泛,发育齐全。根据大量野外露头、实测剖面和分析测试资料,对泥盆纪沉积相和层序地层进行了研究,将该地区泥盆系划分为滨岸碎屑岩相和碳酸盐岩台地相两种沉积相区,细分出若干相带;并自下而上将泥盆纪地层划分为7个三级层序。通过对沉积相和层序地层格架的详细分析,阐述了各层序的体系特征及海平面变化,探讨了该地区古地理演化特征。Devonian strata are widely distributed in the Fuchuan area of northeastern Guangxi. A large amount of outcrop data, stratigraphic measurements, and analytical data were collected in a 1：50000 regional geological survey project. Devonian sedimentary facies and sequence stratigraphy were studied on the basis of these data. Devonian sedimentary facies can be divided into a shoreface clastic area and a carbonate platform area in the study area. A number of finer facies divisions were also identified. Devonian strata in the study area consist of seven 3rd-order sequences. Through a detailed analysis of sedimentary facies and sequence stratigraphic units, the palaeogeographic evolution of the study area is discussed.

关 键 词：层序地层 岩石地层 沉积相 古地理演化 泥盆纪 富川地区 桂东北 

分 类 号：P539.2[天文地球—古生物学与地层学] P534.44[天文地球—地质学]