Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't

Details Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993gecoa..57.4725c&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 57, p. 4725

Mathematics

Logic

19

Petrology, Aluminum Isotopes, Magnesium Isotopes, Meteoritic Composition, Refractory Materials, Chondrites, Minerals

Scientific paper

A detailed petrologic and magnesium isotopic study of two Ca-Al-rich inclusions from the foliated Leoville meteorite is presented. The two type B refractory inclusions found within several centimeters of each other differ greatly in their styles of deformation, textures, and Mg-Al isotopic characteristics. One is a subspheroidal type B1 with textures similar to those observed previously in many type B1s from other CV3 meteorites, and whose deformation (fracturing, some granulation) has been almost entirely brittle in nature. Its isotopic composition shows Mg-26/Mg-24 correlated with Al-27/Mg-24 which, although disturbed, indicates a lower limit for initial Al-26/Al-27 of around 4.9 x 10 to the -5. The other inclusion is a highly elongate object whose long axis lies in the plane of foliation. It has a predominantly metamorphic texture, but relict islands of an earlier and more 'normal' type B precursor are preserved in its core. The most likely origin for the deformed and recrystallized features of the elongate inclusion is that it accreted onto the Leoville parent body while still very hot, and deformed into its present state at the moment of impact.

Affiliated with

Also associated with

No associations

Rating

Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't 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 Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Petrologic and Al-Mg isotopic clues to the accretion of two refractory inclusions onto the Leoville parent body - One was hot, the other wasn't will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1326668