摘要
本文对多伦盆地独石口和青羊沟角砾碎屑玻璃岩及其中微球粒进行了中子活化分析，其微量元素丰度和分布表明，侏罗系上统角砾碎屑玻璃岩及微球粒没有任何撞击形成标志，而更多的是火山喷发标志。因此，多伦盆地不是撞击形成，而与晚侏罗系上统火山喷发有关。
The trace elements of six brecciated glass rock samples and three contained microspherules from the upper Jurassic strata of the Duolun basin have been determined using INAA. The abundance and distribution of trace elements indicates that the brecciated glass rock and microspherules have no hint for impact formation, but are marked with characteristics of volcanic eruption. Therefore, the Duolun basin is not an impact crater, instead its formation was related to the volcanic eruption during the late Jurassic Period.
出处
《地球化学》
CAS
CSCD
北大核心
1995年第3期294-300,共7页
Geochimica
