Análisis del proceso de transporte via sft, de las erupciones del 2014-2015 del Volcán Turrialba

[摘要] SFT (Sequential fragmentation/transport) method was applied to recent fine tephra of october 2014 to april 2015 eruptions of Turrialba Volcano, to identify transport processes on Wohletz et al. (1989) transport dispersion (g). Results obtained that way do not match field observations. Hence, a new analysis is proposed based on an empirical linear relation between the fragmentation (γ) and transport dispersion (g), was devised. Provitional physical mechanisms are presented to help understand such an empirical lineal relationship.

[学科分类] 地质学

[关键词] SFT;Turrialba volcano;ash transport processes;Wohletz transport dispersion;phase change.