A once-molten, coarse-grained, Ca-rich inclusion in Allende

Details A once-molten, coarse-grained, Ca-rich inclusion in Allende A once-molten, coarse-grained, Ca-rich inclusion in Allende

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981e%26psl..52...16m&link_type=abstract

Earth and Planetary Science Letters, vol. 52, no. 1, Jan. 1981, p. 16-24.

Other

27

Calcium, Carbonaceous Meteorites, Chemical Composition, Inclusions, Meteoritic Composition, Crystallization, Mineralogy, Oxygen Isotopes, Meteorites, Allende Meteorite, Inclusions, Melilite, Textures, Chemistry, Condensation, Grains, Crystallization, Radiation, Cooling, Oxygen, Isotopes, Formation, Chronology, Analysis, Techniques, Photographs, Mineralogy, Data, Electron Microprobe, Phases

Scientific paper

A compact, spheroidal Type B inclusion in Allende contains melilite laths that project radially inward from the inclusion edge which show interference growth textures. The combined textural and chemical features of this object cannot be explained by independent vapor-solid condensation of grains in space, followed by random aggregation of these grains into an inclusion. Instead, it probably formed from a once-molten droplet that crystallized in response to radiative cooling from its outer surface. The crystallization sequence in this and another similar inclusion in which oxygen isotopes have been measured is melilite-spinel-anorthite-fassaite; this sequence shows that oxygen isotopic heterogeneities in coarse-grained inclusions were formed after complete solidification of these objects by partial exchange with a less O-16-rich gas, and not during or before a melting event.

Affiliated with

Also associated with

No associations

Rating

A once-molten, coarse-grained, Ca-rich inclusion in Allende 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 A once-molten, coarse-grained, Ca-rich inclusion in Allende, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A once-molten, coarse-grained, Ca-rich inclusion in Allende will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1052555