Emplacement of the megablock zone in the Chicxulub crater, Yucatan, Mexico

Strontium isotope stratigraphy applied to the Cretaceous sequence present in the Yaxcopoil core drilled in 2002 in the Chicxulub crater (Yucatan) demonstrates that the megablocks preserved their original pre-impact orientation. No overturned unit has been identified at the level of resolution, setting constraints on the emplacement mechanisms taking place in this part of the megablock zone during the cratering process 65 million years ago.

Jaar van publicatie:2010

Trefwoorden:impact crater, Chicxulub, Mexico