地质与资源2011，Vol.20Issue(1)：4-11,8.
大兴安岭地区中生代地层特征及侏罗-白垩纪界线的讨论
THE MESOZOIC STRATA AND THE JURASSIC-CRETACEOUS BOUNDARY IN THE DAXINGANLING REGION
邵积东 1谭强 1王惠 1张明 1贺宏云1
作者信息
- 1. 内蒙古自治区地质调查院,内蒙古,呼和浩特010020
- 折叠
摘要
Abstract
The Jurassic-Cretaceous strata in Daxinganling region are studied regarding the lithostratigraphic units,contact relation, distribution, paleontology and isotopic chronology. The J-K boundary is discussed on the basis of such study. The U-Pb isotopic ages of zircon by SHRIMP are greater than 145 Ma. With the support of fossil assemblages of Peipiaosteus, Nestoria-Keratestheria and Ferganoconcha, the J-K boundary is set between Baiyingaolao formation and Meiletu and Yixian formations.关键词
中生代地层/侏罗-白垩纪界线/化石组合/同位素年龄/大兴安岭Key words
Mesozoic strata/ Jurassic-Cretaceous boundary/ fossil assemblage/ isotopic age/ Daxinganling region分类
天文与地球科学引用本文复制引用
邵积东,谭强,王惠,张明,贺宏云..大兴安岭地区中生代地层特征及侏罗-白垩纪界线的讨论[J].地质与资源,2011,20(1):4-11,8.
