Density and size segregation in deposits of pyroclastic flow
在火成碎屑物流沉积里密度和尺寸隔离
Pyroclastic rocks are mainly composed of volcanic breccia and tuff.
火山碎屑岩, 包括火山角砾岩和凝灰岩。
The greatest dangers of pyroclastic avalanches are probably heat and suffocation.
火成碎屑崩落得最大危害可能是炽热和窒息作用。
Sedimentary pyroclastic rocks are mainly sedimentary tuff and sedimentary volcanic breccia.
沉火山碎屑岩，包括沉凝灰岩和沉火山角砾岩。
The lithology is mainly composed of lava basalt， pyroclastic rock and volcanic sedimentary rock.
其岩性主要为熔岩类玄武岩，火山碎屑岩和火山沉积岩
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