摘要
通过对云南腾冲、梁河地区二叠系中统大东厂组(P2dd)岩石地层的调查研究,初步将其划分为3个地层间隔、7种类型基本层序,并于大东厂组一段与二段之间,发现存在Ⅱ型不整合界面(SB2)。大东厂组基本层序的划分,与其岩石地球化学特征及生物地层划分基本吻合。
According to the study on Middle P Dadongchang Formation(P 2 dd)lithologic stratigraphy in Tengchong,Lianghe area,Yunnan,we have preliminarily divided them into 3 stratigraphic intervals,7 basic sequences and discovered the type 2 unconformity interface(SB 2)between Member 1 and 2 of Dadongchang Formation.The division of Dadongchang Formation basic sequence consists with those of petrologic geochemical feature and biostratigraphic division.
作者
姚金昌
张蓉
李蓬博
YAO Jin-chang;ZHANG Yong;LI Peng-bo(Yunnan Professional Institute of Land Resources,Kunming 650217;Yunnan General Company(Group),Kunming650011;Yunnan Exploration Institute of Geology & Mineral Resources,Kunming650051)
出处
《云南地质》
2019年第3期265-272,共8页
Yunnan Geology
关键词
大东厂组
基本层序
层序地层
云南腾冲-梁河
Dadongchang Formation
Basic Stratigraphic Sequence
Sequence Stratigraphy
Tengchong-Lianghe,Yunnan
