tatanan
ignimbrites sing kawangun saka dicampur banget lingkungan diurutake saka awu vulkanik utawa tuff lan pumice lapilli, umum karo pecahan lithic kasebar.
  
variolites iku sawijining klompok saka batuan beku peteng ijo dhasar sing ngetokne bulak panggonan colored ing lumahing weathered sing menehi dheweke katon pockmarked.
  
komposisi
  
  
isi Mineral
apatite, biotite, kalsit, chlorite, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz
  
olivine, plagioclase, pyroxene
  
senyawa isi
ca, NaCl
  
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
  
transformasi
  
  
metamorphism
Yes
  
Yes
  
jinis metamorphism
metamorphism kakubur, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional
  
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional
  
cuaca
Yes
  
Yes
  
jinis udan
udan biologi, udan kimia
  
udan biologi, udan kimia, udan mechanical
  
erosi
Yes
  
No
  
jinis erosi
erosi kimia, erosi gisik
  
ora ditrapake