Public domain
Phlegethon Catena
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This VIS image is located on the eastern flank of Alba Mons. Linear faults and graben surround the volcano aligned north/south, intersecting and deflected around the summit. The large graben is called Phlegethon Catena. The term catena means a string of craters or circular depressions. The depressions in this image were likely formed by the collapse of the preexisting surface into a subsurface void. Graben are caused by blocks of material that drop down along paired faults.
NASA Image and Video Library’s own descriptionSubjects
Credit linePhlegethon Catena. NASA/JPL, 2018-07-10. Public domain. ID: PIA22596.
