Re: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-27 Thread Gerald Flaherty
etaphysics. Jerry Flaherty - Original Message - From: "Sterling K. Webb" <[EMAIL PROTECTED]> To: Cc: "E.P. Grondine" <[EMAIL PROTECTED]> Sent: Friday, October 27, 2006 2:30 AM Subject: Re: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

Re: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-27 Thread E.P. Grondine
. In other words, the > Earthly > prevalence of chondrites would just be a > coincidence. > The evidence is that the asteroid belt is a gumbo, > though, > full of all sorts of things that "don't belong" > there. The > failure to find obvious sources for chondri

Re: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-26 Thread Sterling K. Webb
t could take millions of years to go super, or it could happen in 10,000 years, or it could start up tomorrow. That's what makes life so interesting. Sterling K. Webb --- - Original Message - From: "Rob McCaf

RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Rob McCafferty
; Maybe the seldom-discussed/appreciated metal flecks > are the real gems in the > meteorites? > > Or, is the nebula in my head too dense that am I > just missing something > obvious? > How is my logic flawed? > > Cheers, > Pete > > > > > From: Warin

Re: RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Pete Pete
ot;Pete Pete" <[EMAIL PROTECTED]> CC: meteorite-list@meteoritecentral.com Subject: Re: RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please) Date: Wed, 25 Oct 2006 12:55:53 -0400 On Wed, 25 Oct 2006 11:52:23 -0400, you wrote: >If the heavy elements, such a

Re: RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Pete Pete
t@meteoritecentral.com Subject: Re: RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please) Date: Wed, 25 Oct 2006 12:55:53 -0400 On Wed, 25 Oct 2006 11:52:23 -0400, you wrote: >If the heavy elements, such as nickel and iron, are created by a supernova, >and the chondrules are

Re: RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Darren Garrison
On Wed, 25 Oct 2006 11:52:23 -0400, you wrote: >If the heavy elements, such as nickel and iron, are created by a supernova, >and the chondrules are in theory formed much later during the future >dynamics of our solar system's nebula, would it be fair to say that the >metal flecks would be billi

RE: Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Pete Pete
t;Sterling K. Webb" <[EMAIL PROTECTED]>,meteorite-list@meteoritecentral.com CC: "E.P. Grondine" <[EMAIL PROTECTED]> Subject: Re : [meteorite-list] Chondrule formation mechanism (Info Please) Date: Tue, 24 Oct 2006 16:15:53 + (GMT) Hi, all, I am surprised that nobo

Re : [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-25 Thread Warin Roger
--- Original Message ----- From: "E.P. Grondine" <[EMAIL PROTECTED]>To: Sent: Sunday, October 22, 2006 10:24 AMSubject: Re: [meteorite-list] Chondrule formation mechanism (Info Please)> Hi Rob - > > You noticed the contradiction in cooling peri

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread Rob McCafferty
--- "E.P. Grondine" <[EMAIL PROTECTED]> wrote: > Hi Rob - > > "molecules of a feather flock together"? why? > This is the most blatant speculation on my part and I have not looked it up to check this (though to be fair, I didn't make the comment above, I just like it) but this is what I thin

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread lebofsky
- > - Original Message - > From: Warin Roger > To: Sterling K. Webb ; meteorite-list@meteoritecentral.com > Cc: E.P. Grondine > Sent: Tuesday, October 24, 2006 11:15 AM > Subject: Re : [meteorite-list] Chondrule formation mechanism (I

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread Sterling K. Webb
riginal Message - From: Warin Roger To: Sterling K. Webb ; meteorite-list@meteoritecentral.com Cc: E.P. Grondine Sent: Tuesday, October 24, 2006 11:15 AM Subject: Re : [meteorite-list] Chondrule formation mechanism (Info Please) Hi, all, I am surprised that nobody evoked the theory

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread E.P. Grondine
Hi Rob - "molecules of a feather flock together"? why? If they did, then say an initial detonation of our sun could have been the heat which fused them together. I think speculation on this kind of blast has been bandied about much recently. good hunting, Ed --- Rob McCafferty <[EMAIL PROTECT

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread Rob McCafferty
I like this theory very much. (I particularly like it because it allows the structure to form the way i described it) Rob McC --- Mr EMan <[EMAIL PROTECTED]> wrote: > > I think crystal formation in a fluid preceded the > choundrule formation. Seems standard mineralogy and > crystalography answ

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-24 Thread Rob McCafferty
--- > > My favorite two books on the formation of the > solar > > system are John S. Lewis "The Physics and > Chemistry > > of > > the Solar System." The 2 Ed. is $75, $35 used. (I > > was > >

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-23 Thread Mr EMan
--- "E.P. Grondine" <[EMAIL PROTECTED]> wrote: The problem still remains what caused sufficient number of atoms of the same type to be in the same place at the same time to produce the crystals and glasses observed. I think crystal formation in a fluid preceded the choundrule formation. Seem

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-23 Thread E.P. Grondine
to think > >> of as the remainder of the planetesimals > originally > >> in that zone, seems instead to contain a lot of > >> junk cars from all over. Some things, like Ceres, > >> obviously belong there (could have formed there) > >> but others (like

Re: Re: [meteorite-list] Chondrule formation mechanism

2006-10-22 Thread tracy latimer
Right here on Earth, we have good demonstrations of effervescence in rocks. Every time we get fire fountaining from one of our volcanoes, it is caused by a large amount of gas dissolved under pressure at depth in the magma. When the pressurized magma (now lava) reaches sufficiently shallow dep

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-22 Thread Sterling K. Webb
- Original Message - From: "E.P. Grondine" <[EMAIL PROTECTED]> To: Sent: Sunday, October 22, 2006 10:24 AM Subject: Re: [meteorite-list] Chondrule formation mechanism (Info Please) Hi Rob - You noticed the contradiction in coo

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-22 Thread E.P. Grondine
Hi Rob - You noticed the contradiction in cooling periods as well. What I am thinking is that there was at least one larger parent body which was "disrupted" about 3.9 Gya (at time of LPBE). When this larger parent body was disrupted, then the "effervescent" "foaming" that led to some chondrule

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-22 Thread Rob McCafferty
Ed Thanks for the reply. I'd really like to take a look at any data but to help be more specific on my requirements I'll give you an outline on my idea. The appearance of the unaltered chondrites seems to show that the outer rim of the chondrules are of a significantly diferent structure to the i

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-21 Thread E.P. Grondine
jeez Bob, and all I was trying to do was to come up with a good excuse to personally examine that Krasnojarsk RSPOD Oct 15. You're just about ready to handle some of my asteroid and comet impact correspondence. Ed --- Rob McCafferty <[EMAIL PROTECTED]> wrote: > Hi list > > What I have ben

Re: [meteorite-list] Chondrule formation mechanism (Info Please)

2006-10-21 Thread Rob McCafferty
Hi list What I have ben able to find personally on chondrule formation is rather sketchy. Even the otherwise comprehensive Encyclopedia of Meteorites by O. Richard Norton seems to skim over the mechanism in a paragraph. It's almost as if there is something which defies explanation and scientists

Re: [meteorite-list] Chondrule formation mechanism

2006-10-21 Thread Darren Garrison
On Sat, 21 Oct 2006 16:41:48 -0700 (PDT), you wrote: >> Chondrule textures depend on the extent of melting >> of the chondrule precursor- material when cooling >> starts. > >Kind of begs the question - chodrules formed by >collision, which causes melt - consider if one started >from a steady mol

Re: Re: [meteorite-list] Chondrule formation mechanism

2006-10-21 Thread E.P. Grondine
Thanks Darren - now this is more like it - h --- Darren Garrison <[EMAIL PROTECTED]> wrote: http://www.aspbooks.org/custom/publications/paper/index.phtml?paper_id=2447 > Chondrule textures depend on the extent of melting > of the chondrule precursor- material when cooling > starts. Kin

Re: Re: [meteorite-list] Chondrule formation mechanism

2006-10-21 Thread Darren Garrison
On Sat, 21 Oct 2006 14:58:23 -0700 (PDT), you wrote: >Hi Darren - > >Thanks - much has been lost in the stroke. I also seem >to remember a "long slow cooling" involved in >chondrule formation - > Googling "chondrule formation" comes up with lots of stuff, much of it pretty densly technical.

Re: [meteorite-list] Chondrule formation mechanism

2006-10-21 Thread E.P. Grondine
Hi Darren - Thanks - much has been lost in the stroke. I also seem to remember a "long slow cooling" involved in chondrule formation - I am thinking that effervescence following a sudden release of pressure might be a better process description - good hunting, Ed --- Darren Garrison <[EMAI

Re: [meteorite-list] Chondrule formation mechanism

2006-10-21 Thread Darren Garrison
On Sat, 21 Oct 2006 10:12:56 -0700 (PDT), you wrote: >I think I would be right in saying that the usual >mechanism proposed for chondrule formation is >precipitation at low temperatures over time. No, actually it isn't. Chondrules are usually proposed to be products of rapid melting. __

[meteorite-list] Chondrule formation mechanism

2006-10-21 Thread E.P. Grondine
Hi all - I think I would be right in saying that the usual mechanism proposed for chondrule formation is precipitation at low temperatures over time. But I am wondering: could chondrule formation be linked to the release of pressure? Could it be like a soda-pop, where when you take the cap off