The Dark Dunes Of Erebus Options

[Nirgal]

I've always been fascinated by the dark dune fields of Mars, resembling
in color the sands of, for example, the "black beaches" of Hawai
(inidcating the volcanic/basaltic origin ...)

Here is a colorized view of The dark Dunes of Erebus, as seen by Opporty on Sol 608 (click on image for full resolution (900 KB))

[CosmicRocker]

These dunes/drifts/ripples really are beautiful, and Nirgal's colorized snapshot was quite evocative. Now that we are seeing them 'in person,' it is much easier to interpret the orbital images.

The white patch on top of the large drift has caught my attention, too. I would like to imagine it is the tip of a taller outcrop surrounded by recent sediments. But we really haven't seen prior evidence of outcrops that tall. I am still trying to convince myself that evidence of the ancient ejecta blanket exists, and has not been eroded off. Some parts of the surface look a bit jumbled, while other outcrops display bedding that is mostly contiguous between the blocks.

This is fun. And then there are those circular features that have become common. We need to map them.

[Tesheiner]

These dunes/drifts/ripples really are beautiful, and Nirgal's colorized snapshot was quite evocative.  Now that we are seeing them 'in person,' it is much easier to interpret the orbital images.

The white patch on top of the large drift has caught my attention, too.  I would like to imagine it is the tip of a taller outcrop surrounded by recent sediments.  But we really haven't seen prior evidence of outcrops that tall.  I am still trying to convince myself that  evidence of the ancient ejecta blanket exists, and has not been eroded off.  Some parts of the surface look a bit jumbled, while other outcrops display bedding that is mostly contiguous between the blocks.

This is fun.  And then there are those circular features that have become common.  We need to map them.

Isn't that white patch actually an outcrop on Erebus west side seen behind the dune/ripple?