Deep sea environment 2.2 billion years ago constrained by iron speciation analyses of the drillcore black shales from Ghana
Hiromasa Hayama1, Kosei E Yamaguchi1, Asuka Yamaguchi2, Shoichi Kiyokawa3, Takashi Ito4 and Minoru Ikehara5, (1)Toho University, Department of Chemistry, Chiba, Japan, (2)University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, (3)Kyushu University, Department of Earth and Planetary Science, Fukuoka, Japan, (4)Ibaraki University, Faculty of Education, Mito, Japan, (5)Kochi University, Center of Advanced Marine Core Research, Kochi, Japan
