The deposits of this type of flow include angular blocks and juvenile clasts, which are rarely found in other types of pyroclastic flow. An event tree analysis (ETA) is a useful tool and framework in which to analyse and graphically present the probabilities of the occurrence of many possible...
6) pyroclastic flow 火山碎屑流 1. Peridotite xenolith fragments from Late Quaternarypyroclastic flowin Weizhou Island,Beihai,Guangxi; 广西北海涠洲岛第四纪晚期火山碎屑流中橄榄岩包体碎块的发现及其地质意义 2. This paper demonstrates the results of grain-size sieve analyses of the millenniumpyroclastic flowde...
begin and end with the paroxysmal phase, during which slope failure removes a portion of the edifice. Massive volcanic landslides can also occur without related explosive eruptions, as at the Unzen volcano in 1792. The main potential hazards from these events derive from lateral blasts, the debri...
The solid fraction is commonly used to characterize different types of flow-type mass movements (Pierson and Scott1985; Dasgupta2003; Pierson2005; Hungr et al.2014). Each flow type falls within a continuous spectrum of solid fraction. As the solid fraction increases, stream flows (or flash flo...
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Shark-fin structures: A new type of sedimentary structures produced by shear waves at the flow-bed interface. Examples from pyroclastic current deposits from the 2006 eruption of Tungurahua (Ecuador) Geophysical Research AbstractsChaffaut, QuentinDouillet, Guilhem...
Pyroclastic Creature (CR +1)[3pp] Qlippoth-Blighted Creature (CR +1)[3pp] Quadrupedal Creature (CR +2)[3pp] Quickling Creature (CR +3)[3pp] Radiant Creature (CR +1) Rampant Creature (CR +1) Ravener (CR +2) Ravenous Creature (CR +1)[3pp] Ravenous Creature (CR +1)[3pp] Ra...
The Cave Basalt, a high-alumina pahoehoe flow containing numerous lava tubes, originated at the southeast flank of Mount St. Helens, southwestern Washington, and flowed down a stream valley incised in older pyroclastic flow deposits. In ... R Greeley,JH Hyde - 《Geological Society of America ...
Grain size variations in ignimbrites and applications for the transport of pyroclastic flows. Sedimentology 23: 147-188 Ignimbrite flow units commonly show reverse grading of large pumice clasts and normal grading of large lithic clasts. Ignimbrites show coarse-tail grading, in which particles beneath...
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