As I understand it... most L, LL, H, E, C chondrule formations are thought to have occurred from 4.55 billion to 4.70 billion years ago, with varied dating results typically found when analyzing the different elements in a rock being studied. Whole rock dating gives up an overall average age.
I think the idea is that CAI's were formed first, followed by chondrules, followed by carbonates (and matrix material). The whole process for a given chondrite material is thought to have taken no more than a 100 million years. Chump change in time, right ! My novice two cents, John -------------- Original message from "Charles O'Dale" <[EMAIL PROTECTED]>: -------------- > RE: Dating of Chondrules > > I am researching the absolute ages of chondrules, specifically; > > Within average chondrites, are all the chondrules the same age or do they > vary? If so, by how much? > > Thanks in advance > Charles O'Dale > Meeting Chair > Ottawa RASC > http://www.ottawa.rasc.ca/astronomy/earth_craters/index.html (Pingualuit > Crater updated) > > > > Date: Fri, 11 Mar 2005 15:17:53 -0500 > > From: "Anita Westlake" > > Subject: [meteorite-list] The Birth of Chondrules > > To: > > Message-ID: > > <[EMAIL PROTECTED]> > > Content-Type: text/plain; charset="us-ascii" > > > > Check out this article on the birth of chondrules: > > > > http://www.rednova.com/news/display/?id=132866 > > > > > > Anita D. Westlake > > > > ______________________________________________ > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
