Asteroids and Crustal Evolution

Andrew Y. Glikson, Franco Pirajno

Research output: Chapter in Book/Conference paperChapter

Abstract

Uniformitarian models for the early Earth take little or no account of repeated impacts of asteroid clusters and their effects on crust and mantle. However a growing body of evidence exists for multiple impacts by bodies on the scale of tens of kilometer during similar to 3.47-2.48 Ga, likely accounting at least in part for maficultramafic volcanism produced by mantle rebound and melting events, consistent with the original suggestion by Green (Earth Planet Sci Lett 15: 263-270, 1972, Precambrian plate tectonics. Elsevier, Amsterdam, pp 469-489, 1981). Further, the juxtaposition of at least four impact ejecta units with the fundamental unconformity between granite-greenstone terrains and semi-continental deposits in both the Barberton Greenstone Belt and the Pilbara Craton about similar to 3.26-3.227 Ga constitutes a primary example for the tectonic and magmatic effects of asteroid impact clusters in the Archaean, supporting Lowe and Byerly (Did the LHB end not with a bang but with a whimper? 41st Lunar Planet Science Conference 2563pdf, 2010) suggested extension of the late heavy bombardment (LHB).

Original languageEnglish
Title of host publicationASTEROIDS IMPACTS, CRUSTAL EVOLUTION AND RELATED MINERAL SYSTEMS WITH SPECIAL REFERENCE TO AUSTRALIA
EditorsFranco Pirajno
PublisherSpringer
Chapter6
Pages157-171
Number of pages15
ISBN (Print)9783319745442
DOIs
Publication statusPublished - Mar 2018

Publication series

NameModern Approaches in Solid Earth Sciences
PublisherSPRINGER
Volume14
ISSN (Print)1876-1682

Cite this

Glikson, A. Y., & Pirajno, F. (2018). Asteroids and Crustal Evolution. In F. Pirajno (Ed.), ASTEROIDS IMPACTS, CRUSTAL EVOLUTION AND RELATED MINERAL SYSTEMS WITH SPECIAL REFERENCE TO AUSTRALIA (pp. 157-171). (Modern Approaches in Solid Earth Sciences; Vol. 14). Springer. https://doi.org/10.1007/978-3-319-74545-9_6