Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KAWANO Motoharu and TOMITA Katsutoshi,Formation of Clay Minerals during Low Temperature Hydrothermal Alteration of Obsidian (Part 2). Formation of Clay Minerals in H2SO4 Solution.,Journal of the Clay Science Society of Japan (in Japanese),04706455,The Clay Science Society of Japan,1994,34,1,48-58,https://cir.nii.ac.jp/crid/1390282679088534656,https://doi.org/10.11362/jcssjnendokagaku1961.34.48