Figure F25. Downhole variation in Hole 1185B in the amounts of phenocrysts, unaltered glass, and xenoliths (including plagioclase xenocrysts and xenoliths consisting mainly of aggregates of plagioclase crystals). The increase of plagioclase and presence of clinopyroxene phenocrysts in Units 10-12 coincide with the occurrence of variolitic to subophitic patches that are coarser grained than the aphanitic to fine-grained groundmass. Thus, some of the clinopyroxene and plagioclase "phenocrysts" may simply be crystals disaggregated from these patches.

Figure F25. Downhole variation in Hole 1185B in the amounts of phenocrysts, unaltered glass, and xenoliths (including plagioclase xenocrysts and xenoliths consisting mainly of aggregates of plagioclase crystals). The increase of plagioclase and presence of clinopyroxene phenocrysts in Units 10-12 coincide with the occurrence of variolitic to subophitic patches that are coarser grained than the aphanitic to fine-grained groundmass. Thus, some of the clinopyroxene and plagioclase "phenocrysts" may simply be crystals disaggregated from these patches.