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Figure F52. Thin section photomicrographs of sedimentary rocks, Site U1376. A. Volcanic tuff from Subunit ID with shards of fresh volcanic glass (Sample 330-U1376A-3R-3, 113–117 cm; Thin Section 238) (plane-polarized light). B. Basalt conglomerate from Subunit IIB with (1) dogtooth cement and (2) geopetal structure defined by vadose silt and sparry calcite cement (Sample 330-U1376A-5R-1, 65–67 cm; Thin Section 244) (plane-polarized light). Cement and structure are indicative of a vadose cementation environment. Arrow points toward top.

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