Koji Uno Daisuke Yamashita Tetsuji Onoue Daiki Uehara
Physics of the Earth and Planetary Interiors 249 59-67 2015年12月 [査読有り]
Bedded chert samples from the Norian (Upper Triassic) Sakahogi section of the Mino Terrane in the Inuyama area, southwest Japan, have been collected for paleomagnetic study in order to determine the age of an impact ejecta layer interbedded within...
Ryutaro J. Ichihashi Haider Zaman Yutaka Wada Yoshiaki Sugamori Yohei Kajikawa Hyeon-Seon Ahn Koji Uno Petr S. Zimin Vladimir G. Sakhno Yo-ichiro Otofuji
Journal of Asian Earth Sciences 111 88-99 2015年11月 [査読有り]
We present new Early Cretaceous paleomagnetic results from the Zhuravlevka-Amur Terrane of the Eurasian Continent, Far East Russia. Out of 34 total sites, 14 were collected from Komsomolsk-on-Amur area (50.6 degrees N, 137.2 degrees E) and 20 from...
Journal of Volcanology and Geothermal Research 305 76-83 2015年10月 [査読有り]
In rhyolite lavas, the high porosity bands are often developed. They potentially act as pathways for gas movement to the lava surface. Since explosive activities of lavas are generally considered to be controlled by degassing system, understanding...
Koji Uno Kuniyuki Furukawa Hayato Ando Taro Shinmura Masaya Miyoshi
Physics of the Earth and Planetary Interiors 235 96-106 2014年10月 [査読有り]
A comparative study of the paleomagnetism of various lithofacies of pyroclastic flow deposits has been undertaken to examine the accuracy of their remanent magnetization direction at the time of deposition. The Aso-2 pyroclastic flow deposit, whic...
Kuniyuki Furukawa Koji Uno Taro Shinmura Masaya Miyoshi Tatsuo Kanamaru Hiroo Inokuchi
Journal of Volcanology and Geothermal Research 276 22-31 2014年4月 [査読有り]
Takajosan breccia rocks are distributed around the southwestern caldera rim of the Aso Volcano in japan. They are characterized by coarse lithic breccias with a pumiceous matrix. The proximal coarse lithic breccias are divided into the lower massi...
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