Figure F139. Folds related to the flow of lava. A. Multiple refolding close to the top of sheet flows (interval 309-1256D-80R-3 [Piece 3, 15–19 cm]). B. Same feature as in A (interval 309-1256D-128R-1 [Piece 2, 6–2 cm]). C. Similar fold in a dike (Thin Section 131; Sample 309-1256D-149R-1 [Piece 2, 6–12 cm]) (field of view = 10 mm; plane-polarized light, blue filter).
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