Peering inside the peak ring of the Chicxulub Impact Crater—its nature and formation mechanism

IODP-ICDP Expedition 364 Science Party

Research output: Contribution to specialist publicationArticle

Abstract

The IODP-ICDP Expedition 364 drilled into the Chicxulub crater, peering inside its well-preserved peak ring. The borehole penetrated a sequence of post-impact carbonates and a unit of suevites and clast-poor impact melt rock at the top of the peak ring. Beneath this sequence, basement rocks cut by pre-impact and impact dykes, with breccias and melt, were encountered at shallow depths. The basement rocks are fractured, shocked and uplifted, consistent with dynamic collapse, uplift and long-distance transport of weakened material during collapse of the transient cavity and final crater formation.

Original languageEnglish (US)
Pages68-72
Number of pages5
Volume35
No2
Specialist publicationGeology Today
DOIs
StatePublished - Mar 1 2019

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth-Surface Processes
  • Stratigraphy
  • Palaeontology

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