Space/Science » in reply to A volcanic crater in Meridiani, Mars.

Ignimbrites at Victoria crater?

Robert Clark — 10/9/2006 10:43:39 PM (archived)

These Microscopic Imager images were posted to Uplink.space.com and MarkCarey.com/Mars/

It has the look of vesicular basalt, or perhaps an ignimbrite, which is formed of compacted volcanic ash:

Image:Ignimbrite.jpg
http://en.wikipedia.org/wiki/Image:Ignimbrite.jpg

Bob Clark

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The whole thread (54 posts)

• A volcanic crater in Meridiani, Mars. - Robert Clark - 10/3/2006 5:51:32 PM
  • An Impact Origin for Crater Lake, Oregon - dtb - 10/23/2006 5:03:01 PM
    • re: An Impact Origin for Crater Lake, Oregon - Robert Clark - 10/23/2006 8:24:52 PM
  • Columnar jointing in Victoria crater? - Robert Clark - 10/18/2006 11:30:20 PM
    • They don't appear to be columnar joints to me. - podrock - 10/19/2006 6:00:28 AM
      • re: They don't appear to be columnar joints to me. - Robert Clark - 10/19/2006 11:14:05 AM
  • Pillow lava in Victoria crater? - Robert Clark - 10/15/2006 4:42:15 PM
    • re: Pillow lava in Victoria crater? Nope. - podrock - 10/16/2006 3:34:45 AM
      • Pillow lava and a sedimentary layer. - Robert Clark - 10/19/2006 4:06:22 PM
        • re: Pillow lava and a sedimentary layer. - Robert Clark - 10/23/2006 2:23:12 PM
          • All Cats Are Black - nick hoffman - 10/23/2006 2:34:36 PM
            • re: All Cats Are Black - Robert Clark - 10/23/2006 5:33:57 PM
  • Ignimbrites at Victoria crater? - Robert Clark - 10/9/2006 10:43:39 PM
  • A volcanic dike in Victoria crater? - Robert Clark - 10/9/2006 9:24:22 PM
  • Wow, look at the crater in 3-D! - Robert Clark - 10/7/2006 10:31:50 PM
    • A volcanic fissure at Victoria crater? - Robert Clark - 10/24/2006 3:26:46 PM
      • re: A volcanic fissure at Victoria crater? - Robert Clark - 10/26/2006 4:05:18 PM
  • No, it's not volcanic. - podrock - 10/7/2006 3:22:45 AM
  • Just plain silly - Donald - 10/5/2006 1:21:20 AM
    • A volcanic ash origin for the Meridiani bedrock has been proposed. - Robert Clark - 10/5/2006 12:29:28 PM
      • the sequence - podrock - 10/7/2006 3:34:23 AM
      • Robert... - Donald - 10/5/2006 12:50:06 PM
        • Victoria crater. - Robert Clark - 10/5/2006 3:27:13 PM
          • re: Victoria crater. - Michael Gmirkin - 10/6/2006 8:00:08 PM
            • Oh man... - azstrummer - 10/9/2006 11:02:06 PM
            • .......?......!....... - podrock - 10/7/2006 3:17:12 AM
              • If he is serious, it's time to bring out the bogosity meter. - Jacob Samorodin - 10/8/2006 6:21:02 PM
                • Thunderbolts cultists - Adam - 10/9/2006 4:13:50 AM
          • re: Victoria crater. - Donald - 10/6/2006 1:16:58 PM
  • Sorry, Bob - nick hoffman - 10/3/2006 11:32:57 PM
    • re: Sorry, Bob - EP. - 10/14/2006 4:06:50 PM
      • Actually, I'd like it to be MUD flows even better. (n/t) - Robert Clark - 10/15/2006 4:33:29 PM
    • Crater Lake - dtb - 10/4/2006 4:21:32 AM
      • re: Crater Lake - Robert Clark - 10/4/2006 12:22:47 PM
        • Deep lakes - Laurie Street - 10/5/2006 3:49:36 PM
        • re: Crater Lake - dtb - 10/4/2006 4:59:58 PM
          • re: Crater Lake - Robert Clark - 10/4/2006 8:58:06 PM
            • You can see the bottom of the lake in a lot of places - alcaray - 10/4/2006 11:56:26 PM
              • I can top that - here's the WHOLE lakebed - nick hoffman - 10/7/2006 10:48:48 PM
                • very nice - alcaray - 10/8/2006 12:12:10 AM
                  • re: lighntning... - nick hoffman - 10/8/2006 12:46:19 PM
                    • as in... - alcaray - 10/8/2006 4:17:31 PM
                      • ZAP ! - podrock - 10/9/2006 4:48:47 AM
                  • the best... - podrock - 10/8/2006 3:37:00 AM
            • re: Crater Lake - dtb - 10/4/2006 9:26:41 PM
              • re: Crater Lake - Robert Clark - 10/4/2006 11:45:28 PM
                • Let's try this in simple steps, Bob - nick hoffman - 10/7/2006 11:02:22 PM
                  • Mount Mazama is *no longer* a mountain. - Robert Clark - 10/7/2006 11:16:45 PM
                    • re: Mount Mazama is *no longer* a mountain. - SDG - 10/19/2006 7:10:53 PM
                    • I played in snow on the top of it, a couple of summers ago. - alcaray - 10/8/2006 12:16:23 AM
                      • re: I played in snow on the top of it, a couple of summers ago. - Robert Clark - 10/8/2006 12:43:10 AM
                        • maybe, I don't know (though Nick's elevation map was pretty convincing) - alcaray - 10/8/2006 11:25:48 PM
        • re: Crater Lake - Robert Clark - 10/4/2006 4:24:22 PM
    • Congratulations, Nick: Undercutting of the rim - E.P. - 10/4/2006 12:26:58 AM