火山喷发碎屑

修改了Suzuki二维扩散模型，并对长白山天池火山喷发碎屑沉降物分布特征进行了模拟，进一步讨论了喷发柱高度和风速对沉降分布的影响。

Suzuki 2D diffusion model is modified and used to simulate the distribution characteristics of volcanic eruptive clastic sediment at Tianchi , Changbaishan . Furthermore , the influences of height of eruption column and wind velocity on the distribution of sediment are discussed .

当代火山喷发碎屑堆积物的研究进展及其主要类型

Advances in Pyroclastic Deposits at Present and the Main Types of the Pyroclastic Deposits

主要论述了这次大爆发的火山喷发碎屑堆积物的层序和分布。

The author deals with mainly the sequence and distribution of the pyroclastic deposits of the800 a.B.P.eruptions .

通过对研究区火山产物分析，推测未来主要火山灾害由火山喷发空降碎屑物、火山碎屑涌流、熔岩流、火山喷发气体造成。

Based on the analysis of volcanic products , it is inferred that the future probable volcanic hazards would be caused by descending pyroclasts , pyroclastic outpouring flows , lava flows and gases from volcanic eruptions .