Jun Sakuma¹, Hisashi Asanuma², Naoto Takahata², *Tsuyoshi Iizuka¹ (1.Department of Earth and Planetary Science, The University of Tokyo, 2.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Katsuhiko Suzuki¹, Madhusoodhan Satish-Kumar², Trisrota Chaudhuri³, M. Jayananda⁴ (1.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 2.Department of Geology, Faculty of Science, Niigata University, 3.Department of Geology, University of Calcutta, 4.Centre Earth and Space Sciences, University of Hyderabad)

Shun Nakano¹, *Akira Ishikawa¹, Yuichiro Ueno¹, Tetsuya Yokoyama¹ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

*Tatsuya Tamura¹, Tetsuya Yokoyama¹, Akira Ishikawa¹, Takeshi Kuritani², Ikshu Gautam¹ (1.Tokyo Institute of Technology, 2.Hokkaido University)

*Rei Torigoe¹, Toru Inoue¹, Yuri Shinoda, Takaaki Kawazoe¹, Masamichi Noda¹, Yasushi Ueno¹ (1.Hiroshima university)

*Arshad Ali¹, Mohamed El-Ghali^1,2, Mohammad Kakar³, Iftikhar Abbasi², Sobhi Nasir^1,2, Rehanul Haq Siddiqui⁴, Leonardo Nogueira⁵, Osman Salad Hersi⁶, Mohamed Moustafa², Iffat Jabeen⁷, Nisar Ahmed⁸ (1.Earth Sciences Research Centre, Sultan Qaboos University, Oman, 2.Department of Earth Sciences, Sultan Qaboos University, Oman, 3.University of Balochistan, Pakistan, 4.Saindak Metals, Pakistan, 5.Federal University of Ouro Preto, Brazil, 6.University of Regina, Canada, 7.Project Management Institute, South Western Ontario Chapter, Canada, 8.College of Economics and Political Science, Sultan Qaboos University, Oman)