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 the 800 a. B. P. eruptions.
火山碎屑流是由火山喷发而引起的最可怕自然灾害。
Pyroclastic flows are some of the most fearsome hazards posed by erupting volcanoes.
1883年8月26 - 27日，喀拉喀托火山喷发并且激起了冲天的火山灰和碎屑的柱体。
On August 26-27 1883, Krakatoa erupted and continually sent enormous plumes of ash and dust into the sky.
火山岩与碎屑岩共生，构成沉积—喷发韵律或沉积—喷发旋回。
Volcanic rocks compose with clastic rocks together, form sedimentary-eruption rhythm or cycle.
吉林龙岗火山群火山碎屑基浪堆积是中国少数保存较好的、近代喷发的低平火山区之一。
Pyroclastic base-surge deposits of volcanic cluster in the Longgang region of Jilin Province is one of the few neoteric maar deposits which are preserved in good condition in China.
科学家确定凹陷处是一个火山口，并且在它附近明亮的圆环是火山碎屑岩，是火山喷发出岩浆的残余，很象地球上的火山喷口。
The scientists determined that the depression was a volcanic vent, and the bright ring around it was pyroclastic, remnants of lava that had been spewed outward, much like a volcanic fountain on Earth.
科学家确定凹陷处是一个火山口，并且在它附近明亮的圆环是火山碎屑岩，是火山喷发出岩浆的残余，很象地球上的火山喷口。
The scientists determined that the depression was a volcanic vent, and the bright ring around it was pyroclastic, remnants of lava that had been spewed outward, much like a volcanic fountain on Earth.
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