Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion

Details Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005gecoa..69.2663y&link_type=abstract

Geochimica et Cosmochimica Acta, Volume 69, Issue 10, p. 2663-2674.

Mathematics

Logic

6

Scientific paper

Oxygen-isotopic compositions in conjunction with petrologic investigation have been determined for a coarse-grained type B2 Ca, Al-rich inclusion (CAI) from the reduced CV3 Vigarano using secondary ion mass spectrometry. The oxygen-isotopic compositions of minerals are distributed along the carbonaceous chondrite anhydrous mineral line indicating mixing between 16O-rich and 16O-poor nebular components. The O-isotopic heterogeneities among and within minerals in the CAI interior indicate that CAI formation started in an 16O-rich nebula and subsequently continued in an 16O-poor nebula. 16O-rich signatures of melilite and fassaite in the Wark-Lovering rim and of olivine of the accretionary rim indicate that the nebular environment during formation of the CAI returned to an 16O-rich composition after processing in an 16O-poor nebula. These O-isotopic variations in the CAI support multiple heating events in the solar nebula and indicate that the nebular environments fluctuated from 16O-rich to 16O-poor and back to 16O-rich compositions during the formation of a single CAI.

Affiliated with

Also associated with

No associations

Rating

Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion 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 Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlations between oxygen-isotopic composition and petrologic setting in a coarse-grained Ca, Al-rich inclusion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1434767