Figure F10. Whole-round and half-round core scanner images illustrating different kinds of alteration features, Unit 2. A. Pervasively altered phyric basalt with microcrystalline groundmass (interval 336-U1383C-9R-3, 71–80 cm [Piece 10]). Olivine is extensively altered to iddingsite throughout the groundmass. B. Patchy alteration of sparsely phyric basalt with microcrystalline groundmass (interval 336-U1383C-9R-3, 81–93 cm [Piece 11]). Note that the grayish-brown alteration halos are related to exposed fractures on both sides of the piece.
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