NiigataUniversity;
Japan;
GeologyInstitute;
FacultyofScience;
ShimaneUniversity;
Japan;
CollegeofGeneralEducation;
SaitamaUnivetsity;
GlobalGeologyDivision;
InternationalGeologyOffice;
GeologicalSurveyofJapan;
GeophysicsInstitute;
FacultyofScience;
KyotoVniversity;