吉林延边地区屯田营组时代商榷

DISCUSSION ON THE AGE, OF THE TUNTIANYING FORMATION, YANBIAN AREA, JILIN

本文主要论述吉林省延边地区屯田营组时代。通过对屯田营组研究历史的回顾,从火山岩喷发—沉积序列和生物地层资料指出屯田营组时代为晚侏罗世,屯田营组与金沟岭组同是晚侏罗世两个火山旋回。

This paper mainly describes the age of the Tuntianying formation in Yanbian, Jilin province, Through the review on the history of research on the Tuntianying formation Yanbian area, Jilin province and according to the volcanic exhalation-sedimentary sequence and biostratigraphic materials, it is indicated that the Tuntianying formation is referred to late Jurassic, and the Tuntianying and Jingouling formatoions all belong to two volcanic cycles of late Jurassic respectively.