The impact origin and evolution of Chryse Planitia on Mars revealed by buried craters - Université Claude Bernard Lyon 1 Access content directly
Journal Articles Nature Communications Year : 2019

The impact origin and evolution of Chryse Planitia on Mars revealed by buried craters

Abstract

Large impacts are one of the most important processes shaping a planet's surface. On Mars, the early formation of the Martian crust and the lack of large impact basins (only four unambiguously identified: Hellas, Argyre, Utopia, and Isidis) indicates that a large part of early records of Mars' impact history is missing. Here we show, in Chryse Planitia, the scarcity of buried impact craters in a near-circular area could be explained by a pre-existing topographic depression with more intense resurfacing. Spatially correlated with positive Bouguer anomaly, this near-circular region with a diameter of~1090 km likely originated from an impact. This proposed large impact basin must have been quickly relaxed or buried after its formation more than 4.0 billion years ago and heavily modified by subsequent resurfacing events. We anticipate our study to open a new window to unravelling the buried records of early Martian bombardment record.
Fichier principal
Vignette du fichier
Pan_etal_2019_Chryse.pdf (2.72 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-02296349 , version 1 (25-09-2019)

Identifiers

Cite

Lu Pan, Cathy Quantin-Nataf, Sylvain Breton, Chloé Michaut. The impact origin and evolution of Chryse Planitia on Mars revealed by buried craters. Nature Communications, 2019, 10 (1), ⟨10.1038/s41467-019-12162-0⟩. ⟨hal-02296349⟩
221 View
122 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More