Very significant enhancements of the element iridium have been observed in association with the Cretaceous/ Tertiary boundary in marine sediments laid down 65 m.y. ago and subsequently uplifted above
1. Extended Fig. 1 from main text a: Example calculation of post-impact KFF of Earth surface b: Comparison of full geologic and impact stratigraphy c: Comparing the temporal precision of each dataset
The abundances of meteoritic ejecta from the Eltanin asteroid impact have been examined in seven sediment cores recovered by the FS Polarstern during expedition ANT XII/4 using...
