Abstract
Hydrated minerals occur in accretionary rims around chondrules in CM chondrites. Previous models suggested that these phyllosilicates did not form by gas-solid reactions in the canonical solar nebula. We propose that chondrule-forming shock waves in icy regions of the nebula produced conditions that allowed rapid mineral hydration. The time scales for phyllosilicate formation are similar to the time it takes for a shocked system to cool from the temperature of phyllosilicate stability to that of water ice condensation. This scenario allows for simultaneous formation of chondrules and their fine-grained accretionary rims.
Original language | English (US) |
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Pages (from-to) | 549-552 |
Number of pages | 4 |
Journal | Science |
Volume | 299 |
Issue number | 5606 |
DOIs | |
State | Published - Jan 24 2003 |
ASJC Scopus subject areas
- General