obahe bumi bisa nimbulaké rocks dadi salah siji rumiyin disarèkaké utawa squeezed lan Empu rocks sing digawe panas lan sijine ing meksa gedhe.
ignimbrites sing kawangun saka dicampur banget lingkungan diurutake saka awu vulkanik utawa tuff lan pumice lapilli, umum karo pecahan lithic kasebar.
apatite, augite, biotite, bronzite, kalsit, chert, epidote, Feldspar, hornblende, micas, plagioclase, pyroxene, quartz, sulfides, zirkon
apatite, biotite, kalsit, chlorite, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz
aluminium oxide, cao, fe, feo, silikon dioksida, belerang
ca, NaCl
ora ditrapake
metamorphism kakubur, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional