Chondrule precursor minerals as anhydrous phases

Details Chondrule precursor minerals as anhydrous phases Chondrule precursor minerals as anhydrous phases

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998m%26ps...33..881m&link_type=abstract

Meteoritics & Planetary Science, vol. 33, no. 4, pp. 881-887.

Physics

3

Scientific paper

Chondrules might be generated from hydrous or anhydrous precursor minerals, but vesicles due to dehydration during melting are absent in natural chondrules. The occurrence of vesicles in experimental charges made from serpentine-rich starting material (a) flash heated and remelted several times, (b) melted for long durations and (c) melted in a vacuum, has been studied in order to test whether vesicles could be eliminated in chondrules made from hydrous precursors. High percentages of vesicles in all experiments indicate that chondrules, whether melted once, multiple times, for a brief or extended period, at solar nebula or higher pressure, were made from anhydrous phases.

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