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The astronomical connection of terrestrial evolution: crustal effects of post-3.8 Ga mega-impact clusters and evidence for major 3.2?0.1 Ga bombardment of the Earth-Moon system

Glikson, Andrew


It is accepted that during the Late Heavy Bombardment (LHB-4.2-3.8 Ga) in the Solar system, as preserved on the Moon, the terrestrial upper mantle-crust system was dominated by interactions between internal mantle processes and extraterrestrial impacts, and that following this period, the impact flux decreased by two orders of magnitude, from 4-9 × 10-13 km-2 year-1 to 3.8-6.3 × 10-15 km-2 year-1 (for asteroids Dc > = 18 km), a rate consistent with a cratering rate of 5.9 ± 3.5 × 10-15 km-2...[Show more]

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
Source: Journal of Geodynamics
DOI: 10.1016/S0264-3707(01)00029-1


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