@article{oai:kumadai.repo.nii.ac.jp:00028771, author = {Tanaka, Hitoshi and 三宅, 由洋 and Miyake, Yoshihiro and 村本, 雄一郎 and Muramoto, Yuichiro and 田中, 均 and 三宅, 由洋 and Miyake, Yoshihiro and 村本, 雄一郎 and Muramoto, Yuichiro}, journal = {熊本大学教育学部紀要}, month = {Dec}, note = {application/pdf, 論文(Article), The Kosade River is a branch in the Kuma River located at the east of Okoba in the Hitoyoshi City, Kumamoto Prefecture. The bulk of the basement rocks is represented by the Cretaceous to Lower Miocene strata (Shimanto Group). They are composed of sandstone, mudstone, alternating beds of sandstone and mudstone, and so on. The Shimanto Group is overlain by the Kakuto Pyroclastic Flow and the Fluvial Terrace Deposits. Moreover, all gravels of this Fluvial Terrace deposits are composed of Kakuto Pyroclastic Flow Deposits. According to research, an erosion amount of the lower reaches of the Kosade River is larger than that of the upper, compared with a general river. Therefore, the purpose of the study is to examine the geotectonic history of the Kosade River from all geological and geomorphological information of the Kakuto Pyroclastic Flow Deposits and the terrace deposits. With further regard to this study, fundamental knowledge of the unique geologic conditions related to Quaternary tectonic movement is indispensable to the geomorphic history of the basin of the Kosade River.}, pages = {363--368}, title = {加久藤火砕流堆積物から構成される段丘堆積物の地質学的意義 : 熊本県人吉市大畑町東方を流れる小纚川を例にして}, volume = {63}, year = {2014}, yomi = {ミヤケ, ヨシヒロ and ムラモト, ユウイチロウ and ミヤケ, ヨシヒロ and ムラモト, ユウイチロウ} }