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Norman H. Sleep and Donald R. Lowe Physics of crustal fracturing and chert dike formation triggered by asteroid impact, ∼3.26 Ga, Barberton greenstone belt, South Africa Geochemistry, Geophysics, Geosystems 15

Article first published online: 14 APR 2014 | DOI: 10.1002/2014GC005229

Key Points

  • Archean asteroid impact produced extreme seismic waves
  • Waves damaged shallow subsurface at teleseismic distance
  • Net movement of material by gravity occurred during shaking

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