摘要
以往对江西省早二叠世的火山碎屑岩了解不够,资料甚少。通过研究宜春幅及上饶幅区测资料,在萍乡市桐子坪、铅山县双门石一带发现火山碎屑岩,从剖面的古生物群面貌及地层层序,将此套地层归属于晚二叠世晚期火山活动的产物,在浅海环境中沉积而成。本次发现对解释江西省内早二叠世的古地理及火山活动提供可靠地佐证。
In the past,the early Permian volcaniclastic rocks in Jiangxi Province were not well understood and the data were very few.Based on the study of the regional survey data of Yichun and Shangrao,the volcaniclastic rocks were found in the area of tongziping and shuangmenshi of Qianshan County,Pingxiang City.According to the paleontological features and stratigraphic sequence of the section,this set of strata belongs to the product of Late Permian volcanic activity,which was deposited in the shallow sea environment.This discovery provides reliable evidence for the interpretation of paleogeography and volcanic activity of Early Permian in Jiangxi Province.
作者
王茂华
李自敏
WANG Mao-hua;LI Zi-min(Ganxi geological survey team of Jiangxi Bureau of Geology and mineral resources,Nanchang 330030,China)
出处
《世界有色金属》
2019年第17期184-186,共3页
World Nonferrous Metals
关键词
火山碎屑岩
沉凝灰岩
江西古地理
火山活动
pyroclastic rocks
sedimentary tuff
Jiangxi palaeogeography
volcanic activity
