[meteorite-list] CH or CB Chondrite?
From: Jeff Kuyken <jeff_at_meteoritecentral.com>
Date: Thu Apr 22 10:29:55 2004 Message-ID: <002001c37ac7$f33fa160$abae8a90_at_mandin4f89ypwu> This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C37B1B.C1107300 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks Bernd. What would this list do without you?!? ;-) Well it seems a = definitive answer to my question is still while away from being = conclusively decided on and accepted. Thanks for everyone's help and = answers. Cheers, Jeff Kuyken I.M.C.A. #3085 www.meteoritesaustralia.com ----- Original Message -----=20 From: bernd.pauli_at_paulinet.de=20 To: meteorite-list_at_meteoritecentral.com=20 Sent: Sunday, September 14, 2003 10:30 PM Subject: Re-2: [meteorite-list] CH or CB Chondrite? Alex wrote: > So my question is: is the CB designation still just a proposal (made > by the authors of these papers, and may be others), and has yet to > arrive at a status of general acceptance by the scientific = community? > Should CH-BEN be abandoned? Are both of them valid side by side > for the time being?=20 > Jeff Grossman, can you shed some light on this? When Weisberg et al. wrote their comprehensive paper on these primitive chondritic materials in 2001, they stated: Herein, we r e c o m m e n d designation of the CB (C, carbonaceous; B, bencubbinite) chondrites, a new grouplet that greatly extends of nebular/metal silicate and volatile element fractionations recorded in chondrites. These CB chondrites have significant similarities to the CR and CH chondrites, making theme part of the larger CR clan (e.g., Weisberg et al., 1990, 1995b). WEISBERG M.K. et al. (2001) A new metal-rich chondrite grouplet - CB chondrites (MAPS 36-3, 2001, pp. 401-418). So, at least, when the above paper was written and published, these designations (CBa, CBb) were still preliminary but if it still is ... well, Jeff may have more on this. Cheers, Bernd To: ase_at_planet-interkom.de Cc: meteorite-list_at_meteoritecentral.com ______________________________________________ Meteorite-list mailing list Meteorite-list_at_meteoritecentral.com http://www.pairlist.net/mailman/listinfo/meteorite-list ------=_NextPart_000_001D_01C37B1B.C1107300 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>Thanks Bernd. What would this list do without you?!? = ;-) Well=20 it seems a definitive answer to my question is still while = away from=20 being conclusively decided on and accepted. Thanks for everyone's help = and=20 answers.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Cheers,</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Jeff Kuyken<BR>I.M.C.A. #3085<BR><A=20 href=3D"http://www.meteoritesaustralia.com">www.meteoritesaustralia.com</= A></FONT></DIV> <BLOCKQUOTE=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV> <DIV=20 style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B>=20 <A title=3Dbernd.pauli_at_paulinet.de=20 href=3D"mailto:bernd.pauli_at_paulinet.de">bernd.pauli@paulinet.de</A> = </DIV> <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20 title=3Dmeteorite-list_at_meteoritecentral.com=20 = href=3D"mailto:meteorite-list_at_meteoritecentral.com">meteorite-list@meteor= itecentral.com</A>=20 </DIV> <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, September 14, = 2003 10:30=20 PM</DIV> <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re-2: [meteorite-list] = CH or CB=20 Chondrite?</DIV> <DIV><BR></DIV>Alex wrote:<BR><BR>> So my question is: is the CB=20 designation still just a proposal (made<BR>> by the authors of = these=20 papers, and may be others), and has yet to<BR>> arrive at a status = of=20 general acceptance by the scientific community?<BR>> Should CH-BEN = be=20 abandoned? Are both of them valid side by side<BR>> for the time = being?=20 <BR><BR>> Jeff Grossman, can you shed some light on = this?<BR><BR>When=20 Weisberg et al. wrote their comprehensive paper on<BR>these primitive=20 chondritic materials in 2001, they stated:<BR><BR>Herein, = we r e c=20 o m m e n d designation of the CB<BR>(C, carbonaceous; B,=20 bencubbinite) chondrites, a new<BR>grouplet that greatly extends of=20 nebular/metal silicate<BR>and volatile element fractionations recorded = in=20 chondrites.<BR>These CB chondrites have significant similarities to = the<BR>CR=20 and CH chondrites, making theme part of the larger<BR>CR clan (e.g., = Weisberg=20 et al., 1990, 1995b).<BR><BR>WEISBERG M.K. et al. (2001) A new = metal-rich=20 chondrite<BR>grouplet - CB chondrites (MAPS 36-3, 2001, pp.=20 401-418).<BR><BR>So, at least, when the above paper was written and=20 published,<BR>these designations (CBa, CBb) were still preliminary but = if=20 it<BR>still is ... well, Jeff may have more on=20 this.<BR><BR>Cheers,<BR><BR>Bernd<BR><BR>To: <A=20 = href=3D"mailto:ase_at_planet-interkom.de">ase@planet-interkom.de</A><BR>Cc: = <A=20 = href=3D"mailto:meteorite-list_at_meteoritecentral.com">meteorite-list@meteor= itecentral.com</A><BR><BR><BR>___________________________________________= ___<BR>Meteorite-list=20 mailing list<BR><A=20 = href=3D"mailto:Meteorite-list_at_meteoritecentral.com">Meteorite-list@meteor= itecentral.com</A><BR><A=20 = href=3D"http://www.pairlist.net/mailman/listinfo/meteorite-list">http://w= ww.pairlist.net/mailman/listinfo/meteorite-list</A><BR><BR></BLOCKQUOTE><= /BODY></HTML> ------=_NextPart_000_001D_01C37B1B.C1107300-- Received on Sun 14 Sep 2003 09:56:02 AM PDT |
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