作者: Carlo Doglioni , Johannes Pignatti , Max Coleman
DOI: 10.1016/J.GSF.2016.02.001
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摘要: Abstract Life was limited for most of Earth's history, remaining at a primitive stage and mostly marine until about 0.55 Ga. In the Paleozoic, life eventually exploded colonized continental realm. Why had there been such long period delayed evolution life? Early dominated by Archaea Bacteria, which can survive ionizing radiation better than other organisms. The magnetic field preserves atmosphere, is main shield UV radiation. We explore hypothesis that Cambrian explosion could have enabled increase dipole intensity due to solidification inner core, caused cooling Earth, concomitant decrease with time high-energy solar flux since birth system. Therefore, two phenomena be responsible growth thickening atmosphere development land surface life.