Hadean

GPTKB entity

Statements (18)
Predicate Object
gptkbp:instanceOf geological eon
gptkbp:characterizedBy formation of Earth
formation of Earth's crust
formation of the Moon
heavy meteorite bombardment
no known life
gptkbp:endDate about 4 billion years ago
gptkbp:followedBy gptkb:Archean
https://www.w3.org/2000/01/rdf-schema#label Hadean
gptkbp:namedFor gptkb:Preston_Cloud
gptkbp:nameOrigin gptkb:Hades_(Greek_mythology)
gptkbp:partOf gptkb:Precambrian
gptkbp:precededBy none
gptkbp:startDate about 4.6 billion years ago
gptkbp:subdivision geologic time scale
gptkbp:yearNamed 1972
gptkbp:bfsParent gptkb:Precambrian
gptkbp:bfsLayer 5