Abstract 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.

中文翻译：

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盖尔陨石坑（火星）硫酸盐静脉网络结构分析

摘要 好奇号火星车在火星盖尔陨石坑中的活动提供了大量沉积地层露头的特写图像，显示出各种成岩特征，如浅色调的脉、结核和隆起的山脊。通过对 Mastcam 图像的 2D 和 3D 分析，我们在这里重建了样本区域的静脉网络并估计了应力场。浅色脉空间分布评估表明，盆地充填体在埋藏固结后，经历了近垂向压缩和横向伸展，并伴有流体超压和开裂。总体而言，盆地内填充材料产生的过载可能会导致岩石破裂和浅色脉形成。