the author deeply studied cooling unit of pyroclastic flow in luanping area and divided the volcanic rock into 12 cooling units.
笔者对滦平地区火山碎屑流冷却单元进行了深入的研究,划分出12个冷却单元。
this paper demonstrates the results of grain-size sieve analyses of the millennium pyroclastic flow deposits from tianchi volcano.
火山碎屑流堆积因其巨大的危害性而成为火山学研究的重要课题之一。
the eruption seems to have started with the volcano spitting out lumps of rock up to 2 metres across, before releasing an enormous pyroclastic flow – a fast-moving gush of hot gas and rock.
the eruptive pattern of the yuanchi phase is from plinian column (the yuanchi pumice and ash fall deposits)→pyroclastic flow (the bingchang pyroclastic flow deposits).