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Victoria's Innards, Your last chance to speculate before we really see it
dvandorn
post Sep 25 2006, 04:41 AM
Post #1


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So, here's a nice little short-term thread, to let people get on the record with their wild speculations as to what we'll see when we get "up close and personal" with Vickie.

Some have mentioned seeing gully-like features in the walls, in the MOC images. I'll take this moment to disagree -- it looks to me like the talus slope (which makes up most of the exposed interior of the crater, that and the dune field) is streaked all along the interior, and that some streaks swirl a bit as they approach the upper rim. I think what we're seeing here is mass-wasting down the slopes of a non-homogenous surface. While the bulk composition of the surface layer that's slowly falling into Vickie is probably all pretty similar, there are obviously pockets of lighter and darker materials. Those pockets are sliding down into the crater, leaving a striated look as light deposits slide down adjacent to darker ones.

At this point, the wind circulation system within the crater kicks in, modifying the light and dark streaks -- especially near the upper rim around the capes and down into the bays.

I think the gully-like feature leading down from Duck Bay is probably nothing more than a mass-wastage slide of dark material down into the crater that has been swirled up a bit near where the winds howl in through Duck Bay.

Let's see, what other potentially embarrasing predictions can I make? I think that while the dark spots on the far rim's cape structures aren't entrances into deep caves, I'd bet that some of them are shallow "alcove" caves. Places where softer rock have been windblown out of the near-vertical rock face, leaving dimple-caves in the rock.

While these would be great places to repel down into and set up a sleeping bag for the night (the cliffs keep the big predators away, after all... wink.gif ), I doubt a MER would ever be able to make its way into one...

-the other Doug


--------------------
“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Posts in this topic
- dvandorn   Victoria's Innards   Sep 25 2006, 04:41 AM
- - Pando   Cough.. cough... I have to admit though, the ...   Sep 25 2006, 05:22 AM
|- - djellison   QUOTE (Pando @ Sep 25 2006, 06:22 AM) I h...   Sep 25 2006, 06:48 AM
- - Pando   Heh, I know the MC forum had a few people feverish...   Sep 25 2006, 07:01 AM
- - djellison   http://www.habitablezone.com/space/messages/439873...   Sep 25 2006, 07:05 AM
- - edstrick   Actually, the graphic will not be that far from re...   Sep 25 2006, 09:33 AM
- - Bill Harris   Pando's visualization is very close to what we...   Sep 25 2006, 10:19 AM
|- - Pando   QUOTE (Bill Harris @ Sep 25 2006, 03:19 A...   Sep 26 2006, 07:25 AM
- - climber   I don't fully agree. I also think that Pando...   Sep 25 2006, 11:15 AM
- - diane   One of the tricks will be figuring out Vicky's...   Sep 25 2006, 11:35 AM
|- - climber   QUOTE (diane @ Sep 25 2006, 01:35 PM) I t...   Sep 25 2006, 04:19 PM
|- - imipak   QUOTE (climber @ Sep 25 2006, 05:19 PM) W...   Sep 25 2006, 08:23 PM
||- - climber   QUOTE (imipak @ Sep 25 2006, 10:23 PM) Si...   Sep 25 2006, 08:26 PM
|- - diane   QUOTE (climber @ Sep 25 2006, 12:19 PM) D...   Sep 26 2006, 12:10 AM
- - antoniseb   QUOTE (dvandorn @ Sep 24 2006, 10:41 PM) ...   Sep 25 2006, 12:33 PM
- - Gray   dvandorn asked for wild speculations. I thought I...   Sep 25 2006, 01:28 PM
- - ngunn   I think we will see evidence of vertical shearing ...   Sep 25 2006, 02:05 PM
- - Bill Harris   One of the puzzles to me is the scalloped rim of V...   Sep 25 2006, 02:26 PM
|- - ngunn   QUOTE (Bill Harris @ Sep 25 2006, 03:26 P...   Sep 25 2006, 02:42 PM
|- - BrianL   QUOTE (Bill Harris @ Sep 25 2006, 09:26 A...   Sep 25 2006, 05:26 PM
||- - Jeff7   QUOTE (BrianL @ Sep 25 2006, 01:26 PM) Pr...   Sep 26 2006, 12:33 AM
|- - fredk   QUOTE (Bill Harris @ Sep 25 2006, 02:26 P...   Sep 25 2006, 10:55 PM
|- - Pando   QUOTE (fredk @ Sep 25 2006, 03:55 PM) I w...   Sep 26 2006, 02:34 AM
|- - ngunn   QUOTE (Pando @ Sep 26 2006, 03:34 AM) Hmm...   Sep 26 2006, 09:43 AM
- - nprev   Kind of bummed about the extensive dust obscuratio...   Sep 25 2006, 02:50 PM
- - Nix   Now that's the kind of meeting I've been t...   Sep 25 2006, 04:52 PM
|- - Pando   QUOTE (Nix @ Sep 25 2006, 09:52 AM) gathe...   Sep 25 2006, 05:11 PM
|- - climber   QUOTE (Pando @ Sep 25 2006, 07:11 PM) Uh,...   Sep 25 2006, 05:31 PM
|- - Nix   QUOTE (Pando @ Sep 25 2006, 07:11 PM) Uh,...   Sep 25 2006, 07:45 PM
- - ngunn   Can we please have the barbecue at a safer spot?   Sep 25 2006, 08:44 PM
- - Bill Harris   QUOTE you have an entire planet to explore and you...   Sep 25 2006, 08:44 PM
- - fredk   As far as what the interior of Victoria will look ...   Sep 25 2006, 11:32 PM
- - Bobby   I would say Mud Flap Gal & Mysetery Man will b...   Sep 26 2006, 12:39 AM
- - Bill Harris   > won't dare step into a geologist's bo...   Sep 26 2006, 02:32 AM
- - fredk   Thanks, Pando. Judging from the filename and crea...   Sep 26 2006, 03:38 AM
- - Bill Harris   Uh, yes, your post "over there" a couple...   Sep 26 2006, 09:17 AM
- - edstrick   Than's for re-posting a pic of the double laye...   Sep 26 2006, 10:05 AM
|- - ngunn   QUOTE (edstrick @ Sep 26 2006, 11:05 AM) ...   Sep 26 2006, 11:12 AM
- - edstrick   I think most of the local soft-stuff has blown awa...   Sep 26 2006, 11:34 AM
- - Gray   The latest images of Victoria appear to show that ...   Sep 26 2006, 01:50 PM
|- - ngunn   QUOTE (Gray @ Sep 26 2006, 02:50 PM) The ...   Sep 26 2006, 04:47 PM
- - gregp1962   I'm confused. Are we looking over the near rim...   Sep 26 2006, 04:53 PM
- - djellison   You have it right. I know it's confusing, but...   Sep 26 2006, 06:30 PM
- - Pando   Dogu?   Sep 26 2006, 08:12 PM
- - MarkL   Has anyone considered the possibility that Victori...   Sep 27 2006, 03:23 AM
|- - Pavel   QUOTE (MarkL @ Sep 26 2006, 11:23 PM) Has...   Sep 27 2006, 05:40 AM
- - Bill Harris   >explain its morphology It's a crater. --...   Sep 27 2006, 07:44 AM
|- - MarkL   QUOTE (Bill Harris @ Sep 27 2006, 07:44 A...   Sep 28 2006, 01:02 AM
- - diane   Bill, thanks for posting the Meteor crater formati...   Sep 28 2006, 11:51 AM
- - alan   Boundary between original surface and ejacta blank...   Sep 28 2006, 03:14 PM
|- - Gray   QUOTE (alan @ Sep 28 2006, 03:14 PM) Boun...   Sep 29 2006, 01:39 PM
- - Bill Harris   Alan, I've not got this one figured out either...   Sep 28 2006, 09:07 PM
- - Burmese   Perhaps the layer just below the fine surface coat...   Sep 29 2006, 04:26 PM


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