tatanan
Wangun scoria nalika magma ngemot jumlah ageng mili gas dipun bibaraken saka gunung mbledhos sak jeblugan.
ignimbrites sing kawangun saka dicampur banget lingkungan diurutake saka awu vulkanik utawa tuff lan pumice lapilli, umum karo pecahan lithic kasebar.
isi Mineral
apatite, biotite, kalsit, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz, silika
apatite, biotite, kalsit, chlorite, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz
jinis metamorphism
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism
metamorphism kakubur, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional