About
This image shows a collapse feature on the southeastern flank of the volcano. The circular/scalloped margin of the collapse is typical for ceiling collapse into a lava tube. However, the potential lava tube is perpendicular to the surface flows. The linear nature and relationship to the surface flows likely indicate that a preexisting tectonic graben occurred here and hosted lava flows that may have become lava tube flows. So in this case, the collapse feature formed by a combination of tectonic and volcanic processes. The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars. THE — NASA JPL · 2017. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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