Publikationsdatum:
2019-01-25
Beschreibung:
The behavior of moderately volatile elements (Na and S) is controversial but critical in understanding chondrule precursors and heating processes. Sulfide appeared to be present in most chondrules, but S should have been vaporized during chondrule formation. In fact, S is extensively redistributed in the course of metamorphism, and its abundance at the end of chondrule formation can only be inferred from the least equilibrated chondrites. Our study of 530 chondrules from Renazzo (CR2) and Semarkona (LL3.0) shows partial volatilization of S during chondrule formation and our melting experiments define conditions for total loss or partial retention of S.
Schlagwort(e):
ASTROPHYSICS
Materialart:
Lunar and Planetary Inst., Papers Presented to the Conference on Chondrules and the Protoplanetary Disk; p 47-48
Format:
text
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