crater record

Change in the Earth–Moon impactor population at about 3.5 billion years ago

16/11/2020 19:09 · by karmaka · in asteroid, crater, Earth, impact / impact-structures, moon, solar system

Minggang Xie, Zhiyong Xiao, Luyuan Xu, Wenzhe Fa & Aoao Xu Nature Astronomy (2020), Published: 09 November 2020 LINK “The bombardment of impactors (leftover planetesimals, asteroids and comets) created numerous impact craters on the Moon….

Modeling the chronologies and size distributions of Ceres and Vesta cratersOPEN ACCESS

22/07/2020 10:07 · by karmaka · in asteroid, Ceres, dwarf planets, impact / impact-structures, solar system, surface, Vesta

Fernando Roig, David Nesvorný Submitted to AJ LINK (OPEN ACCESS) “We infer the crater chronologies of Ceres and Vesta from a self-consistent dynamical model of asteroid impactors. The model accounts for planetary migration/instability early in…

Earth and Moon impact flux increased at the end of the Paleozoic

18/01/2019 00:07 · by karmaka · in crater, Earth, impact / impact-structures, moon

Sara Mazrouei, Rebecca R. Ghent, William F. Bottke, Alex H. Parker, Thomas M. Gernon Science 18 Jan 2019:Vol. 363, Issue 6424, pp. 253-257DOI: 10.1126/science.aar4058 LINK “The terrestrial impact crater record is commonly assumed to be…