Origin of methane-rich natural gas at the West Pacific convergent plate boundary

Yuji Sano^*, Naoya Kinoshita, Takanori Kagoshima, Naoto Takahata, Susumu Sakata, Tomohiro Toki, Shinsuke Kawagucci, Amane Waseda, Tefang Lan, Hsinyi Wen, Ai Ti Chen, Hsiaofen Lee, Tsanyao F. Yang, Guodong Zheng, Yama Tomonaga, Emilie Roulleau, Daniele L. Pinti