The World's Largest Late to Post-Archaean Asteroid Impact Structures

Andrew Y. Glikson, F Pirajno

Research output: Chapter in Book/Conference paperChapterpeer-review


As distinct from small to medium-size impact events, large asteroid impacts producing explosions more powerful than 107 TNT-equivalent, represented by craters and rebound domes larger than about 100 km in diameter have major consequences including the triggering of major seismic events, tsunami events and extinction episodes. Such events are manifested by the Archaean similar to 3.25-3.24 Ga impact cluster and associated transformation from greenstone-granite terrains to semi-continental assemblages (Glikson AY, Vickers J, Earth Planet Sci Lett 241:11-20, 2006). These impact events are considered in Chap. 6. The oldest identified mega-impact is the similar to 3 Ga Maniitsoq structure in southwest Greenland, while younger mega-impact structures >100 km in diameter include the Vredefort and Sudbury structures. Phanerozoic mega-impacts include the Woodleigh impact structure, Warburton twin structures, Chicxulub and Popigai structures. The global tectonic consequences of some of these mega-impacts are yet to be elucidated.

Original languageEnglish
Title of host publicationAsteroids Impacts, Crustal Evolution and Related Mineral Systems with Special Reference to Australia
EditorsAndrew Y. Glikson, Franco Pirajno
Place of PublicationSwitzerland
Number of pages18
ISBN (Print)9783319745442
Publication statusPublished - Mar 2018

Publication series

NameModern Approaches in Solid Earth Sciences
ISSN (Print)1876-1682


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