The mineral assemblages of host rocks containing analysed minerals are following. Rock samples and thin sections studied in this work are kept in the University Museum of the University of Tokyo.

Basic rocks.

Zone I.

73516

Augite basalt, phenocrystic, chlorite + calcite + albite + prehnite + pumpellyite + quartz + sphene + opaque.

Zane IIa.

71235

Olivine-augite basalt, glassy, chlorite + pumpellyite + albite + quartz + calcite + quartz.

32505

Augite basalt, subophitic, chlorite + pumpellyite + actinolite + magne-sioriebeckite + aegirine-augite + calcite + albite + sphene + quartz.

71609

Augite basalt, subophitic, chlorite + pumpellyite + albite + quartz + calcite + sphene.

73515

Augite basalt, subophitic, chlorite + calcite + albite + sphene + quartz

73514

Augite basalt, phenocrystic, chlorite + actinolite + magnesioriebeckite + calcite + sphene + aegirine-augite + albite + quartz

32303

Augite basalt, subophitic, chlorite + actinolite + magnesioriebeckite + aegirine-augite + pumpellyite + epidote + talc + albite + quartz + sphene.

71705

Augite basalt, subophitic, chlorite + pumpellyite + actinolite + calcite + albite + quartz + sphene.

Zone IIb.

72405

Augite basalt, chlorite + epidote + actinolite + albite + sphene + calcite.

P-11

Omphacite + chlorite + actinolite + ferri-phengite + albite + quartz + sphene + hematite + epidote.

P-10

Omphacite + chlorite + actinolite + ferriphengite + albite + quartz + sphene+hematite + epidote.

P-8

Actinolite + glaucophane + epidote + albite + calcite + quartz + chlorite + sphene.

75227

Actinolite + epidote + chlorite + sphene + albite + quartz + calcite.

71909

Glaucophane + actinolite + chlorite + epidote + albite + quartz + calcite + sphene.

S-3

Actinolite + glaucophane + chlorite + epidote + albite + quartz + sphene.

71824

Actinolite + glaucophane + chlorite + epidote + albite + quartz + sphene.

71812

Actinolite + chlorite + epidote + sphene + albite + quartz + relict hornblende.

75223

Actinolite + chlorite + epidote + sphene + albite + quartz

Zone III;

75221

Actinolite + barroisite + chlorite + epidote + albite + quartz + calcite + sphene.

T-30

Barroisite + actinolite + chlorite + epidote + albite + quartz + sphene + biotite.

70324, T-27, 71109, 72420,

Barroisite + actinolite + epidote + chlorite + albite + sphene.

Peliric rocks

Zone III.

72205, 72412,

Garnet + epidote + chlorite + muscovite + albite + sphene + graphite + quartz + opaque.

72008, 72422,

Garnet + chlorite + muscovitc + albite + sphene + graphite + quartz + Opaque.