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Taggish Lake Meteor, Clays?
dvandorn
post Jan 31 2006, 04:44 PM
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I was watching a special on the National Geographic Channel last night, in which they discussed the Taggish Lake (I think I have that name right) meteor.

Now, in earlier coverage of that event, I had learned that the pieces of that meteor were light and frothy, with more voids than rock. However, last night, an LPI investigator showed one rather solid piece and stated that it was simply a set of clays.

So -- if that's the case, then why in the Solar System was anyone surprised that Deep Impact indicated the presence of clays in Temple II?

Obviously, the Taggish Lake meteor was a fairly decent-sized chunk of a comet. Which means we've been examining cometary clays for some years now.

Anyone have any further details on this?

-the other Doug


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“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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ljk4-1
post May 30 2006, 08:17 PM
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Announcement from Planetary Science Research Discoveries [PSRD]

New Issue: Carbonaceous chondrites contain organic compounds with high deuterium/hydrogen ratios, suggesting they formed in interstellar space.

Full story and pdf link at:

http://www.psrd.hawaii.edu/May06/meteoriteOrganics.html


--------------------
"After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance.
I see that such intercourse long continued would make one thoroughly prosaic, hard,
and coarse. But the longest intercourse with Nature, though in her rudest moods, does
not thus harden and make coarse. A hard, sensible man whom we liken to a rock is
indeed much harder than a rock. From hard, coarse, insensible men with whom I have
no sympathy, I go to commune with the rocks, whose hearts are comparatively soft."

- Henry David Thoreau, November 15, 1853

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