- Manon Hardiagon et al., Goldschmit 2013, Florence (Mineral. Mag., 77(5): 1258).
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On the left: Microphotograph (optical microscopy, transmitted light) of sample VBS48 showing a population of single-sized bubbles formed by homogeneous nucleation in a synthetic basalt first saturated in CO2 at 2 GPa-1500°C, then decompressed at 1MPa/s, and finally quenched at 0.7 GPa.
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On the right: The same sample observed under the binocular to highlight the difference between bubbles formed by homogeneous nucleation (in the core of the sample) and bubbles located at the interface between the basalt and the capsule (arrow). Among the latter, some were already present during the saturation stage of the experiment while others formed by heterogeneous nucleation on the capsule wall during the decompression stage.
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