Figure F4. Medium-grained brecciated basalt (interval 210-1277A-5R-1, 24-57 cm). Fractures are filled with basalt clasts, some of which show jigsaw-type textures, within a calcite-spar matrix (pale granular material, 25–38 cm). Note the dogtooth spar in the open fracture at the bottom.

Figure F4. Medium-grained brecciated basalt (interval 210-1277A-5R-1, 24–57 cm). Fractures are filled with basalt clasts, some of which show jigsaw-type textures, within a calcite-spar matrix (pale granular material, 25–38 cm). Note the dogtooth spar in the open fracture at the bottom.