The nature of the KT impactor. A 54Cr reappraisal

Details The nature of the KT impactor. A 54Cr reappraisal The nature of the KT impactor. A 54Cr reappraisal

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006e%26psl.241..780t&link_type=abstract

Earth and Planetary Science Letters, Volume 241, Issue 3-4, p. 780-788.

Physics

16

Scientific paper

According to the variations observed in the various meteorite classes, 54Cr represents an isotopic tool for planetary body discrimination. In the search for the nature of the Cretaceous-Tertiary (KT) impactor, Cr isotopic measurements were already performed at KT boundary. The current work is aimed to modernize Cr isotopic data with high-precision measurements to confirm a carbonaceous chondrite type infall, the contribution of which is also estimated. Isotopic signatures of two marine clays (Caravaca, Stevens Klint) exhibit an isotopic ratio which would represent a mixing of a carbonaceous chondrite of CM2 type with terrestrial material in a ratio 6% to 19%. A single impactor may account for both marine and continental Cr isotopic signatures.

Affiliated with

Also associated with

No associations

Rating

The nature of the KT impactor. A 54Cr reappraisal does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The nature of the KT impactor. A 54Cr reappraisal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nature of the KT impactor. A 54Cr reappraisal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1203881