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Figure F29. Complex intrusive contacts. A. Composite dike (interval 309-1256D-155R-1, 83–90 cm). The chilled margin forms a convex lobe, indicating that the host rock was still ductile during the intrusion. B. An inner sparsely phyric dike intrudes a sparsely phyric spherulitic chilled margin, which is different from the aphyric host rock (interval 309-1256D-161R-2, 0–8 cm). Therefore, in this piece, two subsequent intrusive contacts are recorded. C. Lobate contact with brecciation of the external chilled margin and dispersion of the small clasts in the host rock observed (interval 309-1256D-163R-1, 112–122 cm).

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