[Phil V.]

If you'd like to be on or off this MARS ping list please FRail me

[Darksheare]

Cool.
But the trenches I had to dig during my stay in uniform were somewhat bigger.
*chuckle*
For some reason the pic made me think of "Circle the wagons!"

It is weird that the soil shows characteristics of silt in it's form.

[Ernest_at_the_Beach]

The pooch has done some serious digging!

[Aracelis]

We know two things from these images: that the underlying rock is lighter in color than surface sediments, and that the lighter colored rock appears to be soft.

Terrestrially, magnetite can be found in association with many other minerals including allanite, apatite, arsenopyrite, axinite, biotite, carbonates, chromite, epidote, hematite, garnet, ilmenite, leucaugite, microcline, molybdenite, orthoclase, phlogopite, quartz, rutile, scapolite, spinel, titanite, and zircon.

My guess is that we are looking at the Martian equivalent of a pegmatite and the lighter rock could be weathered orthoclase.

[Alamo-Girl]

Thanks for the ping!

[barker]

Please ad me to your ping list. Thanks.

[hershey]

Hmm, just heard a Martian outcropping? named Mt. Wachusett! Now look for Kerry to attach this to his stump speech! Egad!

[Indie]

ping me on the mars list.
BTW...that soil must be mighty dense since part of it appears to be caked flat along the center upper portion rather than collapsed as the rest is...almost as if it's "moist." If it was sandy [like a sand box] it would not hold it's form at all.