Funding for this research was provided by:
Japan Society for the Promotion of Science (16H01765, 25•9053)
The Japan Science Society (28-616)
Article History
Received: 29 June 2018
Accepted: 19 November 2018
First Online: 7 January 2019
Authors’ information
: RT was cochief scientist of IODP Expedition 346. AS and SK were students of RT.
: The authors declare that they have no competing interests.
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