A constraint on impact theories of chondrule formation |
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| Authors: | John F Kerridge Susan W Kieffer |
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| Institution: | Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Calif. 90024 USA;Department of Earth and Space Sciences, University of California, Los Angeles, Calif. 90024 USA |
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| Abstract: | The association between agglutinates and chondrule-like spherules, which characterizes the assemblage of impact-derived melt products in lunar regolith samples and some gas-rich achondrites, is not found in primitive chondrites. This observation suggests that impacts into a parent-body regolith are unlikely to have produced the chondrules. We believe that if chondrules were formed from impact melt, it was probably generated by jetting during particle-to-particle collisions, presumably in the nebula. |
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