Obsidian lan Adakite Definition
definisi
obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal
adakite iku sawijining penengah kanggo felsic rock vulkanik sing nduweni ciri geochemical saka magma kang wis ngandika bakal kawangun dening leleh sebagean saka basalt ngrubah sing subducted ngisor busur vulkanik
asal
Ethiopia
adak, Kapuloan Aleutian
panemu
obsius
defant lan Drummond
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka adak, Kapuloan Aleutian
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kategori liyane
rock opaque
rock grained nggoleki, medium rock grained, rock opaque