CHIME dating of monazite, xenotime and zircon in graphitic schist, Isua Supracrustal Belt, Greenland and problem for the measurement

• Main Authors: 大友, 陽子, 79184, 加藤, 丈典, 79185, Ohtomo, Yoko, 79186, Kato, Takenori, 79187
• Language: Japanese
• Published: 名古屋大学宇宙地球環境研究所 2018
• Subjects: Isua Supracrustal Belt; biogenic graphite; rare earth elements; monazite; CHIME; Greenland; Rasmussen
• Online Access: http://hdl.handle.net/2237/00028507; https://doi.org/10.18999/nagubc.2.61; https://nagoya.repo.nii.ac.jp/records/26305

2018-03-31 Biogenic graphite in > 3.7 Ga metasediments, Isua Supracrustal Belt (ISB), West Greenland, has been reported as the oldest remnants of life. However, ecosystem spreaded in the >3.7Ga ocean is still poorly understood. Isua biogenic graphite is located in chlorite-rich layers of metas...