Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

Intro -- Preface -- References -- Contents -- 1 Why Hadean? -- Abstract -- 1.1 Introduction -- 1.2 Organization of This Book -- 1.2.1 A Brief Overview -- 1.2.2 Chapter Themes -- 1.3 Defining the ...

Long before continents, oceans, or life Earth was a molten inferno. The Hadean Eon (4.6 to 4.0 billion years ago) was a time of endless meteor impacts, volcanic seas, and a choking atmosphere. This ...