nalika lahar dirilis saka gunung, iku diwiwiti saka cooling cepet banget kang freezes mekanisme saka crystallization. asil punika kaca vulkanik karo susunan Gamelan seragam. 0
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide 0
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism 0
udan biologi, udan kimia, udan mechanical 0
erosi kimia, erosi gisik, erosi Glacier 0