The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lectures

Award Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Panel Discussion

Luncheon Seminars (Day1, Day2, Day3)

Corporate Program

Poster Presentations

Day 2, June 23（Thu.）　　Room P (501, 502 and 503)

2P-07　　PDF

Paleoenvironmental Reconstruction just after the end-Cretaceous impact event from chalcophile composition in the Cretaceous-Paleogene boundary clays

(1Univ. Tsukuba, 2Kochi Univ.)
oTeruyuki Maruoka1, Yoshiro Nishio2

One of the “Big Five” mass extinctions occurred at the Cretaceous-Paleogene (K-Pg) boundary (66.0 million years ago). Although the K-Pg mass extinction was triggered by a meteoroid impact, its killing mechanisms, i.e., environmental perturbations that induce the mass extinction after the meteoroid impact, are still unclear. In order to reveal such environmental perturbations, we have examined the micro-distribution of chalcophile elements that are highly enriched in the K-Pg boundary clays.