Affiliation: | Institute of Geology and Paleontology, Tohoku University, Sendai 980-8578, Japan;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074,China;Department of Earth and Planetary Science, Washington University, St Louis MO 63130, USA;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074,China |