Using Downhole Logging Data and Core Physical Properties to Characterise the Chicxulub Impact Craterbe

Summary In 2016, IODP-ICDP Expedition 364 explored the Chicxulub impact crater, offshore Yucatán, Mexico. The project was implemented by the ECORD (European Consortium for Ocean Research Drilling) Science Operator (ESO). Some of the key objectives of the expedition were to understand impact processes; post-impact life recovery in the crater; and the hydrothermal system emplaced under the crater surface as well as its potential to host life in the aftermath of the impact event. To address these questions, the peak ring of the crater was identified as an ideal structure to investigate, by drilling IODP Hole M0077A. As part of expedition measurements, the Geosciences Montpellier lab, member of ESO, provided wireline logging services and later acquired additional data on core samples. Based principally on these datasets, the authors will present an overview of published studies that made use of core petrophysics and downhole logging; ongoing studies in Montpellier; and a training dataset being used to showcase downhole logging data during IODP ECORD training courses.