Early Earth evolution: perspectives from the oldest minerals and rocks
Early Earth evolution: perspectives from the oldest minerals and rocks
The first half billion years of Earth’s history is the period when our planet attained its basic structure, permitting it to become habitable. However, assessing the geological record of this crucial period is a major challenge due to the lack of Hadean crust and the paucity of Eoarchean rocks, albeit assisted by the rare preservation of Hadean zircon crystals in younger rocks. This session will focus on unravelling the evolution of the early Earth by assessing evidence gleaned from the ancient geological record. Key issues include: 1) early planetary and proto-planetary evolution; 2) the timing of core–mantle and mantle–crust differentiation; 3) the nature and origin of Hadean and early Archean crust; and 4) interaction between early crust and oceans. We welcome new and exciting contributions on these and related topics.
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