Peak Ring Magnetism: Rock- and mineral-magnetic properties of the Chicxulub impact crater

Bruno Daniel Leite Mendes , Agnes Kontny , Ksenia Gaus , Bonny Kuipers & Mark Dekkers
Large impact structures on Earth like the Chicxulub in Mexico are characterized by magnetic highs but the magneto-mineralogical origin is still poorly constrained and impact-generated melt versus hydrothermal activity models are discussed. The IODP-ICDP expedition 364 drilled into the peak ring of the Chicxulub impact crater, which is characterized by a well-developed hydrothermal system. This system was active for up to 2 Ma, reaching temperatures of 350-450°C. The main goal of our study is the...
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