Decoding the History o the Earth, Part II

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Summary of this work is as follows : 1 Descriptive works (number of papers ; 32 by Maruyama, 9 by Isozaki, 8 by Nakashima and 8 by Yurimoto), 2 Synthetic works (Maruyama ; Dynamics of plumes and superplumes through time, in Superplumes ; Beyond plate tectonics, Springer, 441-502 ; Isozaki ; Plume winter scenario for Biosphere catastrophe, ibid, 409-439, Springer), 3 Detailed fossil and geochemical analysis for P/T boundary, end Proterozoic and end Archean times using drilled cores (5 papers by Isozaki, 2 papers by Nakashima, Yurimoto and Maruyama), 4 SIMS spot analysis for the oldest fossils at 3.56Ga from W. Australia (unpublished by Yurimoto), 5 New discrimination diagram for the type of bacteria by Nakashima (in prep.). Most of these descriptions can be interpreted by the secular cooling of the Earth, but not all. One of the exciting events might be starburst in our Galaxy, and resultant cosmic radiation which may have evolved life in genome level.