Planetary Sciences, Geodynamics, Impacts, Mass Extinctions, and Evolution: Developments and Interconnections

Figure 8

Schematic model of formation of chondrules and calcium-aluminium inclusions CAIs. (a) Protoplanetary disk. (b) Chondrule types with different morphologies and internal structures (adapted from Scott [43]). (c) Scanning electron microscopy images of individual chondrules from the Allende meteorite, showing the different morphologies, internal structures, and Fe, Ni, and S compositions. Numbers refer to laboratory sample identifications (Urrutia-Fucugauchi et al. [45]).

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