@article{oai:muroran-it.repo.nii.ac.jp:00008408,
 author = {後藤,  芳彦 and GOTO, Yoshihiko and ITO, Yukie and 伊藤, 有希恵 and YOKOYAMA, Yu and 横山, 由 and MATSUI,  Tomoyuki and 松井, 知之 and MIMATSU, Saburo and 三松, 三郎},
 journal = {室蘭工業大学紀要, Memoirs of the Muroran Institute of Technology},
 month = {Nov},
 note = {application/pdf, A partly eroded, subaerial, dacite cryptodome at Showa-Shinzan, Usu volcano, Hokkaido, Japan, displays its internal structures, and provides an excellent opportunity to study contact relationship between cryptodome and overlying sediment. The margin of the cryptodome comprises two facies: inner coherent dacite and outer dacite breccia. The coherent dacite facies is ~5 m in the exposed section, and consists of homogeneous or weakly flow-banded, feldspar-phyric dacite. The dacite breccia facies envelope the coherent dacite facies, and is 4-5 m thick. The breccia is monomictic, non-stratified and consists of angular dacite clasts up to 15 cm across in a cogenetic matrix. The overlying sediment directly covers the dacite breccia facies, and comprises reddish-brown, fluvial deposit. The dacite breccia formed by　fracturing of coherent dacite in response to cooling contraction, and shearing of the fractured dacite due to movement of the growing cryptodome., 特集 : 「2003年度実施の地域との共同研究の報告」},
 pages = {3--10},
 title = {Internal structures of a subaerial dacite cryptodome at Usu volcano, Hokkaido, Japan},
 volume = {54},
 year = {2004},
 yomi = {ゴトウ, ヨシヒコ and イトウ, ユキエ and ヨコヤマ, ユウ and マツイ, トモユキ and ミマツ, サブロウ}
}