CAJ | 학술논문

南盘江盆地中的大贵州滩为一个自晚二叠世末期开始发育,至晚三叠世初期停止生长的孤立型碳酸盐岩台地。早期的研究工作主要集中于台地内部、北部斜坡和盆地边缘,并认为大贵州滩下三叠统地层格架的几何形态近于对称。本次研究以下三叠统岩石地层对比为基础,借助早三叠世期间δ13C波动频繁且幅度较大的特点进行化学地层对比后发现：台地南缘二-三叠系地层为不整合接触,南缘下三叠统的地层缺失严重;与之前的认识不同,台地南、北两缘下三叠统的地层格架的几何形态表现出明显的不对称特点。
남반강분지중적대귀주탄위일개자만이첩세말기개시발육,지만삼첩세초기정지생장적고립형탄산염암태지。조기적연구공작주요집중우태지내부、북부사파화분지변연,병인위대귀주탄하삼첩통지층격가적궤하형태근우대칭。본차연구이하삼첩통암석지층대비위기출,차조조삼첩세기간δ13C파동빈번차폭도교대적특점진행화학지층대비후발현：태지남연이-삼첩계지층위불정합접촉,남연하삼첩통적지층결실엄중;여지전적인식불동,태지남、북량연하삼첩통적지층격가적궤하형태표현출명현적불대칭특점。
The Great Back of Guizhou in Nanpanjiang basin is an isolated carbonate platform,which developed from the end of Late Permian Epoch to the early of Late Triassic Epoch.The early research mainly concentrated in the inside of platform,north slope and basin edge,it＇s also thought the geometry of the stratigraphic framework is almost symmetric.This study is basis on the rock stratum comparison of Lower Triassic Series,for the feature of the δ13C waved frequently and the amplitude is big,it＇s found that the stratums of Permian and Triassic in north edge of the platform is unconformity,the hiatus is terrible.It＇s different from the former acknowledgment.The geometry of the stratigraphic framework shows obvious uniformity of the north and south edge in Lower Triassic Series.