Tag Archives: axial ridges

HiRISE: Troughs with axial ridges in Acidalia Planitia

Troughs with axial ridges in Acidalia Planitia. There are large, hundreds of meters in length, troughs in Acidalia Planitia, with high axial ridges down the center. While they appear fairly bland in Mars Orbital Camera images, we can see better … Continue reading

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