*Krishnan Sajeev¹、P Rajkumar²、Ippei Kitano³、Durgalakshmi Durgalakshmi⁴、Madhusoodhan Satish-Kumar⁵、Sayantani Chatterjee⁶、Ian S Williams⁴、Eiichi TAKAZAWA⁵ (1.Centre for Earth Sciences, Indian Institute of Science、2.Advanced Facility for Microscopy and Microanalysis, Indian Institute of Science, Bengaluru 560 012, India.、3.The Hokkaido University Museum, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan、4.Research School of Earth Sciences, Australian National University, Canberra 2601, Australia、5.Department of Geology, Faculty of Science, Niigata University, Niigata 950-2181, Japan、6.Earthquake Research Institute, The University of Tokyo, Tokyo113-0032, Japan )

*Sayantani Chatterjee¹、Hikaru Iwamori¹、Debaditya Bandyopadhyay²、Pengyuan Guo³、Christian Tegner⁴、Satoru Haraguchi¹、IODP Expedition 396 scientists (1.Earthquake Research Institute, The University of Tokyo, Japan、2.Institute of Earth Sciences, Academia Sinica, Taiwan、3.Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China、4.Department of Geoscience Aarhus University, Denmark)