Perhaps a more prosaic explanation.
From Unmannedspaceflight.com :
Strange feature on sol 962.
http://www.unmannedspaceflight.com/index.php?showtopic=3655&st=15
Bob Clark
Space/Science » in reply to Small vent at Victoria?
From Unmannedspaceflight.com :
Strange feature on sol 962.
http://www.unmannedspaceflight.com/index.php?showtopic=3655&st=15
Bob Clark