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Figure F14. A, B. Close-up photographs of heterogeneous pieces of basalts showing a mixture between two different types of basalts. A. Interval 322-C0012A-55R-1, 5–12 cm. B. Interval 322-C0012A-57R-CC, 14–22 cm. C, D. Photomicrographs of thin section (Sample 322-C0012A-53R-2 [Piece 1, 0–5 cm]) in plane-polarized light. Phenocryst proportion and size as well as vesicles content are considerably different from one type of basalt to the other. The limit between the two types is diffuse.

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