Olivine in Albareto was measured by Mason (1963) [GCA 27, 1011-1023] to be Fa27 (The Catalogue of Meteorites and MetBase both contain an erroneous value for Mason). Rubin (1990) [GCA 54, 1217-1232] confirmed Mason's data, getting Fa26.6, as well as a Co content of kamacite of 14.4 mg/g. These data by Rubin place Albareto near the dividing point between L and LL chondrites, but Rubin placed it in the LL group. Trace element data of Kallemeyn et al. (1989) [GCA 53, 2747-2767] also show Albareto to be borderline between L and LL, but again, these authors placed it in LL. Clayton (1991) [GCA 55, 2317-2337] measured O isotopes in Albareto. His data place it safely in the LL field [d18O=+5.31, d17O=+3.96]. Cosmic ray exposure data are consistent with both L and LL groups.
In view of these data, I think that the LL classification is the safest one. At worst, one could classify it along with Bjurboele as an L/LL chondrite. I can't see it being called an L chondrite on the basis of any recent published data. -Jeff At 04:25 PM 1/1/2002, Matteo Chinellato wrote: >Hello all > >The unique text on the Albareto meteorite I have in my >hands is of Paolo Gallitelli " Sulla Meteorite caduta >in Albareto di Modena nel Luglio 1766 " Roma 1940 - 18 >pages, italian language. I am go in Modena University >and I have received confirm Albareto is a L4 >chondrite. This is the unique informations I have. >Regards > > >Matteo > >--- Bernd Pauli HD ><[EMAIL PROTECTED]> wrote: > > Matteo Chinellato wrote: > > > > > Albareto is a L4 chondrite, ... > > > > > from the original text on the analysis of the > > Albareto > > > meteorite in italian I have, is confirm the L4 > > chondrite > > > > Thank you, Matteo, ... but I'd now like to see two > > references: > > > > a) The original Italian analysis > > [author(s), date, title, publication, etc.] > > > > b) Ursula's B. Marvin's reference. > > > > Which one is "more" recent and, thus, perhaps "more" > > ultimate? > > > > > > Best wishes, > > > > Bernd > > > > Show your support at the Red Cross Disaster Relief > > Fund - > > >http://s1.amazon.com/exec/varzea/ts/my-pay-page/PKAXFNQH7EKCX/058-5084202-7156648 > > _______________________________________________ > > Meteorite-list mailing list > > [EMAIL PROTECTED] > > >http://www.pairlist.net/mailman/listinfo/meteorite-list > > >===== >M come Meteorite - Matteo Chinellato >Via Triestina 126/A - 30030 - TESSERA, VENEZIA, ITALY >Email: [EMAIL PROTECTED] >Sale Site: http://www.mcomemeteorite.com >Collection Site: http://www.mcomemeteorite.info >ICQ 84588769 MSN Messanger: [EMAIL PROTECTED] >EBAY.COM:http:[EMAIL PROTECTED]/ > >__________________________________________________ >Do You Yahoo!? >Send your FREE holiday greetings online! >http://greetings.yahoo.com > >Show your support at the Red Cross Disaster Relief Fund - >http://s1.amazon.com/exec/varzea/ts/my-pay-page/PKAXFNQH7EKCX/058-5084202-7156648 >_______________________________________________ >Meteorite-list mailing list >[EMAIL PROTECTED] >http://www.pairlist.net/mailman/listinfo/meteorite-list Dr. Jeffrey N. Grossman phone: (703) 648-6184 US Geological Survey fax: (703) 648-6383 954 National Center Reston, VA 20192, USA Show your support at the Red Cross Disaster Relief Fund - http://s1.amazon.com/exec/varzea/ts/my-pay-page/PKAXFNQH7EKCX/058-5084202-7156648 _______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
