Silica-bearing objects in the Dengli H3.8 and Gorlovka H3-4 chondrites

Details Silica-bearing objects in the Dengli H3.8 and Gorlovka H3-4 chondrites Silica-bearing objects in the Dengli H3.8 and Gorlovka H3-4 chondrites

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..697i&link_type=abstract

In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M p 697-698 (SEE N94-16173 03-91)

Computer Science

Chondrites, Crystallization, Phase Diagrams, Silicon Dioxide, Aluminum Oxides, Liquids

Scientific paper

Silica-bearing objects are enigmatic components of the olivine-normative ordinary chondrites. Several papers have been devoted to the study of these objects in various chondrite types. While a relatively large body of information has been collected, the origin of these objects is still controversial. Here we report new data on silica-bearing objects in the unequilibrated H-chondrites Dengli and Gorlovka. The crystallization history of these objects could be explained on the basis of the phase diagram of the Q-Ol-Pl (Al2O3) system, but the origin of the silica-rich liquids remains unclear.

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