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The peculiar depressions which can be observed here, and on several Martian volcanoes, are so-called 'lava tubes'. Lava tubes are caused by the crusting (or cooled lava) which occurs over a lava channel, a covering making the channel into a tunnel. When lava production ceases, the tunnel empties and the roof of the tunnel falls in, making an elongated depression.
Occasionally, the depression forms a chain of small pits over an emptied lava tunnel. Pit chains and lava tunnels are common on the Martian surface and are also seen on other terrestrial planets and the Moon.
Originally posted by ringht_n_wrong
reply to post by Heyyo_yoyo
Hey buddy!!! Nice find....I just don't get how you can zoom in at 400x and be able to see anything properly still!
Anyways S&F for ya and thanks for sharing!
regards,
ringht_n_wrong
Originally posted by wiseone11
I believe I read that Mars is a "dead" planet...which i think means no hot core and no volcanic action...if so, how can there be lava tubes?
Originally posted by Heyyo_yoyo
Hey - thanks for the link! These images are way more detailed.
Man, There's just something about this image that reaches out to you and screams INTELLIGENT DESIGN!
vs. random formation of what is being told to us are Lava Tubes.