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长白山天池火山于公元1215年发生一次大规模爆炸式喷发。本文讨论了这次喷发形成的空降堆积物的特征。在此基础上确定喷发型式为布里尼式;当时对流层风向为西北风,风速为30m/s~40m/s;平流层风向为西风;喷发物的喷出口速度大于200m/s;火山喷发柱最大高度达29km。
Changbaishan Tianchi volcano in 1215 AD a large-scale explosive eruption. This article discusses the characteristics of airborne deposits formed by this eruption. On the basis of this, the eruption pattern was determined to be Brigny type. At that time, the wind direction of the troposphere was northwest wind with a wind speed of 30m / s ~ 40m / s; the wind direction of the stratosphere was westerly; the outlet velocity of the eruption was more than 200m / s; The maximum height of 29km.