posted on Jul, 16 2014 @ 09:54 PM
a reply to: tencap77
Yes, once being a part of a living organism is important. (Kudos, by the way, I almost missed your tone...)
To keep things on topic...
I've seen more than enough fossils and ripple marks (nice to live on sedimentary rock, even if the mineral collection is less than wonderful) to say
I think those are more than likely ripple marks/other structural elements(plagioclase cleavage or differential weathering...). I just collected some
fossils today, found some external bivalve molds and ammonoids, which others have proposed. They were garbage fossils, but I saw them in person
TODAY. With those fresh in my mind, I am even more convinced that that rock is structural.
That said, the majority of rock on Mars is supposed to be basalt, so plagioclase cleavage or flow pattern with differential weathering are more likely
than ripples, when thought of in context... Then again, for all I know that rock could just be a lump of clay the rover ran over and kicked away. It
has nearly the same tread pattern, right? Right?