The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites

Details The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001m%26ps...36...93p&link_type=abstract

Meteoritics & Planetary Science, vol. 36, no. 1, p. 93-106 (2001).

Computer Science

23

Scientific paper

Thermodynamic analysis of the compositional profiles across large chemically-zoned Fe,Ni metal grains in the Bencubbin-like chondrite QUE94411 suggests that these grains formed by non-equilibrium gas-solid condensation under variable oxidizing conditions, isolation degree, and Cr depletion factors. The oxidizing conditions must have resulted from the complete vaporization of nebular regions with enhanced dust/gas ratios (~10 - 40 × solar). Because the origin of each of the metal grains studied requires different condensation parameters (dust/gas ratio, isolation degree, and Cr depletion factor), a high degree of heterogeneity in the formation region of the Bencubbin-like chondrite metal is required. To preserve compositional zoning of the metal grains and prevent their melting and sulfidization, the grains must have been removed from the hot condensation region into cold regions where the accretion of the Bencubbin-like asteroidal body took place.

Affiliated with

Also associated with

No associations

Rating

The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites 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 The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The condensation origin of zoned metal grains in Queen Alexandra Range 94411: Implications for the formation of the Bencubbin-like chondrites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-901226