*斎藤 実篤¹、Sutherland Rupert²、Dickens Gerald³、Blum Peter⁴、Expedition 371 Scientists (1.国立研究開発法人海洋研究開発機構、2.Department of Geography, Environment, Earth Sciences, Victoria University of Wellington, New Zealand、3.Department of Earth Science, Rice University, USA、4.International Ocean Discovery Program, Texas A&M University, USA)