Author Description

The Book Provides A Whole History Of The Earth Since The Formation Of The Solar System. It Describes The Oldest Rocks And Minerals, And Explains The Main Geological Processes In A Way Understandable For Everyone. The Ancient Earth Was Very Different From The Current One, With Very Few Emerged Lands And No Oxygen. Life Appeared In The Abyss, Likely Near Hydrothermal Oceanic Vents. For More Than Two Billion Years, Living Beings Were Only Simple Marine Microorganisms, Bacteria Or Archaea. However, They Were Responsible For The Oxygenation Of The Ocean And The Atmosphere. Not All Species Survived This Major Change. Some Evolved By Making Symbiotic Associations,resulting In New Living Beings That Are Actual Chimeras, The Eukaryotes. At The Same Time, Continental Growth Increased The Surface Of Lands, Which Influenced The Climate. Plate Tectonics Was Responsible For A Moving Geography And Climatic Conditions Oscillating From Warm To Icy. Since Two Billion Years, Three Supercontinents Successively Assembled And Then Broke Up. Plants And Animals Invaded The Emerged Lands Only Four Hundred Million Years Ago. Homo Sapiens Is Still Much Younger. He Appeared In Africa About Two Hundred Thousand Years Ago. At The Time Of The Last Ice Age (21,000 Years Before Present), He Had Invaded All Continents