Journal
JOURNAL OF STRUCTURAL GEOLOGY
Volume 137, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsg.2020.104083
Keywords
Mars; Veins; Fluid circulation; Curiosity rover; Hydrofracturing
Categories
Funding
- European Union [776276]
- Fondazione Ing. Aldo Gini scholarship
- Centre National d'Etudes Spatiales (CNES)
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The Curiosity rover's campaign in the Gale crater on Mars provides a large set of close-up images of sedimentary formations outcrops displaying a variety of diagenetic features such as light-toned veins, nodules and raised ridges. Through 2D and 3D analyses of Mastcam images we herein reconstruct the vein network of a sample area and estimated the stress field. Assessment of the spatial distribution of light-toned veins shows that the basin infillings, after burial and consolidation, experienced a sub-vertical compression and lateral extension coupled with fluid overpressure and cracking. Overall, rock failure and light-toned veins formations could have been generated by an overload produced by infilling material within the basin.
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