贵州玉屏彰寨早奥陶世的古环境演化  

PALEOENVIRONMENT EVOLUTION OF THE EARLY EPOCH OF ORDOVICIAN IN ZHANG ZHAL, YU PING COUNTY, GUIZHOU PROVINCE

作　　者：梅冥相[1] 陈笑媛[2] 

机构地区：[1]中国地质大学 [2]贵州工学院地质系

出　　处：《贵州工学院学报》1993年第2期21-25,共5页

摘　　要：对地层剖面特征的地质及马尔柯夫链分析法的研究结果表明:在早奥陶世,贵州玉屏彰寨位于台地边缘,其桐梓期、红花园期、湄潭期,先后处于碳酸盐台地边缘滩、台地边缘礁、台地边缘隆起沉积环境;该地区相应的沉积作用,在滩、礁相继形成后以潮汐作用为主。The results of the study on the characters of the sections and the Markovian chain analysis of the signature section show that, in the early, epoch of Ordovician, Zhang Zhai in Yu Ping county, Guizhou Province lies in platform margin, in which Tong Ziian age, Hong Hua Yuanian age and Mei Tanian age are in a Carbonate platform marginal beach, a carbonate platform marginal reef and a platform marginal swell zone in this region respectively and the corresponding sedimentation in this area, after the formation of beach and then reef is mainly the tidal action.

关 键 词：古环境 演化 早奥陶世 贵州 

分 类 号：P534.42[天文地球—古生物学与地层学]