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# Lava channel on a ridge on the Moon
- URL: https://jatan.space/rille-on-a-ridge-rima-ariadaeus/
- Published: 2018-10-01T19:45:12.000Z
- Updated: 2024-02-21T09:16:05.000Z
- Description: The 300 kilometers long Rima Ariadaeus.
- Author: Jatan Mehta

Seen here is part of the 300 kilometers long lava channel, a rille, on the Moon called Rima Ariadaeus.

![](https://jatan.space/content/images/2024/02/https-3a-2f-2fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984-s3-amazonaws-com-2fpublic-2fimages-2fa8ced2be-0607-4fc5-82d3-9c71a16b60ae_2995x1426-jpeg.jpg)

Rima Ariadaeus as captured by Apollo 10 astronauts from orbit. [Credit: NASA](https://www.flickr.com/photos/nasacommons/9457397441/in/album-72157634967503435/)

Unlike sinuous (curved) rilles which are volcanic in nature, linear (straight) rilles like Rima Ariadaeus are formed differently. The linear rille of Rima Ariadaeus is thought to have been formed [when a section of the Moon's crust sank down between two volumes of rock](http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle%5Fquery?letter=.&classic=YES&bibcode=1997LPI....28..541H&page=&type=SCREEN%5FVIEW&data%5Ftype=PDF%5FHIGH&send=GET&filetype=.pdf). The following illustration makes it clear.

![](https://jatan.space/content/images/2024/02/https-3a-2f-2fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984-s3-amazonaws-com-2fpublic-2fimages-2f422eb7c8-f53e-4a70-b85f-81c142a0ff8b_737x394-jpeg.jpg)

Sections of the crust sunk, called [graben](https://en.wikipedia.org/wiki/Graben), lying between two adjacent volumes of rock Credit: Jatan Mehta, derived from [a U.S. Geological Survey graphic](https://en.wikipedia.org/wiki/File:Fault-Horst-Graben.svg)

In the featured image above, the rille is seen to cross the ridge from above it, which suggests the rille is younger than the ridge. The rille also cuts off some craters meaning it is younger than those craters as well. Finally, the rille itself has few craters on it. All of these suggest that Rima Ariadaeus is a relatively young lunar feature.

[KNOW MORE](https://en.wikipedia.org/wiki/Rima%5FAriadaeus)

[![](https://jatan.space/content/images/2024/02/https-3a-2f-2fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984-s3-amazonaws-com-2fpublic-2fimages-2f16039ff5-4077-4a0a-a3fe-b41ed832dc73_1098x770-jpeg.jpg)](https://quickmap.lroc.asu.edu/?layers=NrBsFYBoAZIRnpEoAsjZwLpNKG%2BscB2fDbMADlPnNAE5rDgjZWakiE2mAmOuqt3J9%2BjTOKQ9QPRkmBSuiJgGZoPQUuEVVBGhOBw4UDIhCG0ipoZKXyq6IrJJlcNWMkVO7gzqFI4Lt4BykHKeH4%2BJBEBDBHqyjJxnokE5HAobE7yFPRi%2BgkpJiAJjnp20MqxpAB0UMXQGXnlymiZtXKqysap%2BRUh3B1qVay1zZkwo84VpdCTwJ2FE%2BDidtKyxaAz1TzLzqD9NbvzqNSzR2HdI8u9yhpXg2Gnc51RhyvORK26xUQHI0blHhff7nNSXCYAqZSJ6Q%2BZqV4g97zIjhb7I8EqIh3djI4Y427jFQUUpExZEv74ijAspIDKEjqiCKqHgUlRqMlIsII0zHVFZMLY3ieQmrPGYkUfEl2Igc-QoIHrYDyimzZTkeXg1Xq6FtOhIlDgVlyA0c2ngTWjXpwMWDaB8-HQBreeys8qO7zgHgS7L7bzqCB%2BnLUoW4QOgQVI8BGXQIEBR4PkKM2VJIKMR1PWj08LZERM8GSOOb%2B7lstxMx0YlaYIA&extent=7.713023830111117%2C2.8632203911865823%2C18.690654282424827%2C8.507743670841208&proj=10)

[EXPLORE ON A MAP](https://quickmap.lroc.asu.edu/?layers=NrBsFYBoAZIRnpEoAsjZwLpNKG%2BscB2fDbMADlPnNAE5rDgjZWakiE2mAmOuqt3J9%2BjTOKQ9QPRkmBSuiJgGZoPQUuEVVBGhOBw4UDIhCG0ipoZKXyq6IrJJlcNWMkVO7gzqFI4Lt4BykHKeH4%2BJBEBDBHqyjJxnokE5HAobE7yFPRi%2BgkpJiAJjnp20MqxpAB0UMXQGXnlymiZtXKqysap%2BRUh3B1qVay1zZkwo84VpdCTwJ2FE%2BDidtKyxaAz1TzLzqD9NbvzqNSzR2HdI8u9yhpXg2Gnc51RhyvORK26xUQHI0blHhff7nNSXCYAqZSJ6Q%2BZqV4g97zIjhb7I8EqIh3djI4Y427jFQUUpExZEv74ijAspIDKEjqiCKqHgUlRqMlIsII0zHVFZMLY3ieQmrPGYkUfEl2Igc-QoIHrYDyimzZTkeXg1Xq6FtOhIlDgVlyA0c2ngTWjXpwMWDaB8-HQBreeys8qO7zgHgS7L7bzqCB%2BnLUoW4QOgQVI8BGXQIEBR4PkKM2VJIKMR1PWj08LZERM8GSOOb%2B7lstxMx0YlaYIA&extent=7.713023830111117%2C2.8632203911865823%2C18.690654282424827%2C8.507743670841208&proj=10)