rhyolite punika rock extrusive felsic lan amarga isi silika dhuwur, rhyolite lahar banget viscous lan padha vulkanik granit.
biotite, Feldspar, hornblade, plagioclase, pyroxene, quartz
ca, fe, kalium oxide, mg, kalium, silikon dioksida, sodium
metamorphism kakubur, metamorphism cataclastic, metamorphism regional
udan biologi, udan kimia, udan mechanical
erosi kimia, erosi segara, banyu erosi, angin erosi