Asteroid shock: Space rock impacts ’can HELP the environment’

One component was incorporated in the mineral pyrite, whereas the other component was not related to pyrite. 

Professor Teruyuki Maruoka, the study’s first author said: “Since the enrichments of elements in these two components of the boundary clay were accompanied by enrichments of iridium, both components might have been induced by processes related to the asteroid impact.” 

Iron oxides/hydroxides acted as a carrier phase that supplied chalcophile elements – concentrated in sulfide minerals – to the KPg boundary clays on the sea floor. 

The resulting vapour cloud of the asteroid impact produced iron oxides/hydroxides, which could have carried chalcophile elements in oceans and been the source of iron in the pyrite grains holding chalcophile elements. 


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