Comment on “Earth and Moon impact flux increased at the end of the Paleozoic”

Author:

Hergarten Stefan1ORCID,Wulf Gerwin1ORCID,Kenkmann Thomas1ORCID

Affiliation:

1. Institut für Geo- und Umweltnaturwissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany.

Abstract

Mazrouei et al . (Reports, 18 January 2019, p. 253) found a nonuniform distribution of crater ages on Earth and the Moon, concluding that the impact flux increased about 290 million years ago. We show that the apparent increase on Earth can be explained by erosion, whereas that on the Moon may be an artifact of their calibration method.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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