As the alternate survey protocol for AUV-ROV sequential focused geological survey in great water depth, HOV mounted MBES survey followed by the geological observation and sampling was conducted. HOV mounted MBES provided a sub-meter scale high res...
<title>Abstract</title>Seafloor massive sulphide (SMS) deposits, modern analogues of volcanogenic massive sulphide (VMS) deposits on land, represent future resources of base and precious metals. Studies of VMS deposits have proposed two emplacemen...
Hiroshi Sato   Shiki Machida   Ryoko Senda   Keiko Sato   Hidenori Kumagai   Hironobu Hyodo   Shigekazu Yoneda   Yasuhiro Kato   
POLAR SCIENCE 29 2021年9月 [査読有り]
We recovered sedimentary and plutonic rocks from the off-ridge portion of the Southwest Indian Ridge (37 degrees 00.02' E, 44 degrees 49.73' 5, 2165 m deep). The petrography, geochemistry, and geochronology of these plutonic rocks were analyzed. A...