All I mean bu "we don't know, er, stuff..."
was that there is no definitive answer to
the puzzle. Proof of double supernovae,
T Tauri firestorms, system-wide lightning
bolts, or demons that like torment human
geophysicists is still unavailable.
Sterling K. Webb
-----------------------------------------------------
----- Original Message -----
From: "Jeff Grossman" <[email protected]>
To: <[email protected]>
Sent: Thursday, October 01, 2009 1:52 PM
Subject: Re: [meteorite-list] CAI and chondrules
I didn't say "we don't know cr*p"... I said there
was not a definitive answer. We know a lot about
the timing, materials, and physical conditions
needed to make chondrules and CAIs, and people
have used these to make models for their
formation. But many of these constraints are
under scrutiny right now, and some pretty basic
things are still controversial. What this means
is... ok, we don't know cr*p. But progress is being made.
Jeff
At 02:39 PM 10/1/2009, Sterling K. Webb wrote:
Hi, Carl, Francesco, Jeff, List,
Wrong, Carl. A good solid "We don't know
crap about this yet; it's all up in the air"
is the best kind of definitive answer.
There are probably a half-dozen scenarios
for how this data came about and there's few
reasons to choose any one over the others.
I was glad to hear Jeff confirm it.
Sterling K. Webb
-----------------------------------------------------------
----- Original Message ----- From: "Carl 's"
<[email protected]>
To: <[email protected]>
Sent: Wednesday, September 30, 2009 5:49 PM
Subject: Re: [meteorite-list] CAI and chondrules
Ahhh! Good questions, Francesco. I had been wondering about CAIs and
chondrules myself. None of the books I've read explains,how?
Thanks also for your answer, Jeff. While not definitive, it seems to be
the only answer at this time. Thank you.
Carl
Jeff Grossman wrote:
...
Definitive answers to what caused the formation of CAIs and chondrules
are not known.
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Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
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