Biogenic origins and moon

Eva Nessenius

Astronomical discoveries of water abundance in protoplanetary disks are the basis of my hypothesis of a cool formation of the Earth by hydrous accretion in the habitable zone of the disk our solar system derived from, under different pressure conditions than in disks observed at present, chemical evolution in times of accretion, early beginning of prebiotic and biological life. I arrange some of the processes in a new succession in which the presence of water is given greater consideration. Biomineralisation is a fundamental process for the origin of solid rocks. When the planetary embryo of the Earth developed, the shapes of the Precambrian shields were not only formed by physical and chemical processes. Colonies of procaryotes gave organic shapes to the early continents. Their biogenic sediments were transformed by pressure from collisions or heat due to intrusion. With an early beginning of life, the early Earth was a planetary embryo in the astronomical and biological sense. The Earth formation and the evolutionary history of life were not separate processes, but they were intertwined. Otto Ampferer (1925) suggested as initial cause for the break-up of the Pangea the emergence of the Moon. My hypothesis includes findings in geomorphology and plate tectonics that indicate the area where the Moon came out of the Earth, explaining the imbalance in the distribution of land masses and oceans. Key words: Earth formation – Biomineralisation – Precambrian – Phanerozoic – Pangaea – Origin of the Moon – Plate tectonics