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On to Santa Maria! |
 Nov 23 2010, 11:29 PM
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#226
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 The Poet Dude  Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60  |
I think the big guy inside the crater is actually bigger than Wopmay. As for the ones outside the crater, I think... think... a couple are just under rover sized, but time will tell.
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Nov 24 2010, 12:37 AM
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#227
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 Merciless Robot Group: Admin Posts: 8789 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
These boulders might well be the first compositionally different rocks we've seen in years @ Meridiani...can't see them being made of the usual crumbly sulfates.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 24 2010, 12:54 AM
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#228
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 Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
Wasn't 'Marquette Island' compositionally different as well? Can't remember what it was made of...
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Nov 24 2010, 12:57 AM
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#229
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Merciless Robot Group: Admin Posts: 8789 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
IIRC, Marquette was a meteorite. I omitted those, meant native martian rocks.
EDIT: Oops, I'm a dork. Yeah, you're right, OWW. Marquette was a deep crustal rock, mostly basalt, and that wasn't quite a year ago. Time flies... -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 24 2010, 01:19 AM
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#230
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 Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
Phil-O-Vision version of James' Sol2424 panorama.
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Nov 24 2010, 05:14 AM
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#231
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 Senior Member Group: Members Posts: 4260 Joined: 17-January 05 Member No.: 152 |
Santa Maria on sol 2429, showing a bit more of the rim. Average of L2/R2 frames:
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Nov 24 2010, 11:40 AM
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#232
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Ok, this is the best I can do, comparing Oppy to Santa Maria and surroundings...
http://twitpic.com/39posk -------------------- |
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Nov 24 2010, 12:35 PM
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#233
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Member Group: Members Posts: 940 Joined: 4-September 06 From: Boston Member No.: 1102 |
Well, we can now see Santa Maria and our current location on the zoomed in view of Tesheiner's map (on my screen resolution). The high point in our approach looks to be about 400 m ahead next to a cluster of 3 small craters and oucrop (50 m west of the 3km E grid line). I think that will be our best view until we are actually at Santa Maria looking in.
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Nov 24 2010, 03:49 PM
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#234
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Member Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
(Marquette Island was a secondary meteorite from elsewhere on Mars, and it was a Gabbro -- Coarse-grained Olivine + other stuff.)
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Nov 24 2010, 04:08 PM
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#235
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 Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511 |
The dune field on Santa Maria's northern slope is intriguing. I don't remember seeing inclined, "mesh" type dunes (esp. inside craters) on our travels...
-------------------- 'She drove until the wheels fell off...'
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Nov 24 2010, 04:21 PM
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#236
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Senior Member Group: Members Posts: 4260 Joined: 17-January 05 Member No.: 152 |
Peeking inside Southern Cross crater, a particularly rocky crater, on sol 2404, pancam stereo:
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Nov 24 2010, 04:24 PM
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#237
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 Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
QUOTE (MarkG @ Nov 24 2010, 10:49 AM)  Marquette Island was a secondary meteorite from elsewhere on Mars... I don't recall any determination that Marquette Island had ever spent any time in space as opposed to just being blasted from one part of Mars to another. Maybe you mean ejecta, and probably primary ejecta.
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Nov 24 2010, 04:38 PM
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#238
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Founder Group: Chairman Posts: 14445 Joined: 8-February 04 Member No.: 1 |
QUOTE (eoincampbell @ Nov 24 2010, 08:08 AM) I don't remember seeing inclined, "mesh" type dunes (esp. inside craters) on our travels... Unless I'm missing something - these dunes are not significantly different to those in Endurance and Victoria. |
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Nov 24 2010, 05:06 PM
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#239
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
The dunes near the north rim of Santa Maria do look a bit like the northeast corner of Spirit's El Dorado.
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Nov 24 2010, 05:45 PM
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#240
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Member Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
QUOTE (centsworth_II @ Nov 24 2010, 08:24 AM) I don't recall any determination that Marquette Island had ever spent any time in space as opposed to just being blasted from one part of Mars to another. Maybe you mean ejecta, and probably primary ejecta. Although it is likely that MI is ejecta, it is not definitive, and may never be known with certainty. It cannot be ruled out that MI could have been ejected into space for a period of time before recapture, or even came from a parent body other than Mars that we have insufficient knowledge to recognize. |
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