Foothill of volcano BA3 & BA7 | Middle part of volcano BH3 & BH9 | Top hill of volcano KH1 & KH4 & KH7 |
Olivine basalt | Trachybasalt basalt | Highly vesicular basalt |
Olivine, clinopyroxene, Ca-plagioclase, magnetite and ilmenite | Clinopyroxene, Ca-plagioclase and magnetite | Ca-plagioclase and volcanic glass (in major) and very minor components of magnetite, ilmenite ± olivine and clinopyroxene |
-Olivine = [Mg, Fe]2[SiO4] -clinopyroxene = [Ca, Na, Mg, Fe2+, Mn, Fe3+, Al, Ti]2[(Si, Al)2 O6] -Ca-rich plagioclase = [Ca, Na, Al2SiO3 O8] -Magnetite = [Fe3O4] ilmenite = [FeO∙TiO2] | -clinopyroxene = [ Ca, Na, Mg, Fe2+, Mn, Fe3+, Al, Ti]2[(Si, Al)2 O6] -Ca-rich plagioclase = [Ca, Na, Al2SiO3 O8] -Magnetite = [Fe3O4] | -Ca-rich plagioclase = [Ca, Na, Al2SiO3 O8] -volcanic glass (in major) -very minor components of magnetite, ilmenite ± olivine and clinopyroxene |