JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 341 158-171 2017年7月 [査読有り]
To reveal the cooling process of a rhyolite-obsidian flow, we studied the morphology of plagioclase microlites in the Tokachi-Ishizawa lava of Shirataki, northern Hokkaido, Japan, where the structure of the lava can be observed from obsidian at th...
Kyohei Sano   Keiji Wada   Eiichi Sato   
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 292 29-40 2015年2月 [査読有り]
Very few quantitative textural data exist for viscous obsidian lava eruptions, and it is still unclear from the mechanical behavior of ascending magmas if outgassing is controlled dominantly by brittle or ductile deformation. In order to obtain in...