Lunar Reconnaissance Orbiter Camera

The Rilles of Posidonius


The squiggly (or sinuous) rille seen hugging the western wall of Posidonius crater was formed by a massive outpouring of lava chaotically flowing across the landscape. Nearby is a totally different type known as a linear rille. It formed later, as the floor of the crater was uplifted and the now hardened lava cracked and pulled apart forming troughs.

Lat: 31.68°
Long: 29.53°
Camera: NAC
Image Width: 68.0 km
Location in exhibit: Lunar Vistas
Image ID: M1108017413L

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