In:
Science, American Association for the Advancement of Science (AAAS), Vol. 339, No. 6120 ( 2013-02-08), p. 655-656
Kurzfassung:
During the past 540 million years, five major mass extinctions have occurred on Earth. Several of them have been linked to volcanic eruptions during the formation of large flood basalts ( 1 , 2 ). However, the situation is not clearcut for the most recent mass extinction at the Cretaceous-Paleogene (K-Pg) boundary (∼66 million years ago), when nonavian dinosaurs became extinct. Around the time of the K-Pg boundary, a series of large eruptions formed the Deccan flood basalts. However, in 1980, Alvarez et al. ( 3 ) argued that the K-Pg boundary coincided with the impact of a large asteroid or comet. On page 684 of this issue, Renne et al. ( 4 ) provide new evidence that the age of Chicxulub asteroid impact and the K-Pg boundary coincide precisely.
Materialart:
Online-Ressource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1233948
Sprache:
Englisch
Verlag:
American Association for the Advancement of Science (AAAS)
Publikationsdatum:
2013
ZDB Id:
128410-1
ZDB Id:
2066996-3
ZDB Id:
2060783-0
SSG:
11
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