On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7)

Details On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7) On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7)

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984e%26psl..71..329t&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 71, no. 2, Dec. 1984, p. 329-339. Research supported by the Ministry

Mathematics

Logic

31

Achondrites, Chondrites, Meteorites, Meteoritic Composition, Mineralogy, Petrology, Geochemistry, Meteoritic Microstructures, Neutron Activation Analysis, Trace Elements

Scientific paper

Petrology, mineralogic properties and contents of major elements and trace elements Ag, Au, Bi, Cd, Co, Cs, Ga, In, Rb, Se, Te, Tl, U and Zn are reported (determined by radiochemical neutron activation analysis) in Yamato 74160, interpreted as an LL7 chondrite. All properties are consistent with this meteorite having been recrystallized and partially melted locally once at temperatures well above 1090 C under conditions such that some minerals (e.g. plagioclase, euhedral pyroxene, tetrataenite) grew from melt pockets and siderophilic and chalcophilic elements were lost by extraction into eutectic melt that drained away. Inhomogeneous plagioclase compositions and mobile element loss suggest shock as the most likely heat source. Yamato 74160, while inferentially chondritic, is a larval achondrite: even higher temperatures and longer times would have been required to cause the separations necessary to transform it to an identifiable achondrite type.

Affiliated with

Also associated with

No associations

Rating

On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the chondrite-achondrite transition - Mineralogy and chemistry of Yamato 74160 (LL7) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-735986