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Obsidian
Obsidian

Adakite
Adakite



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Adakite

Obsidian lan Adakite Definition

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1 Definition
1.1 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
1.2 Sajarah
1.2.1 asal
Ethiopia
adak, Kapuloan Aleutian
1.2.2 panemu
obsius
defant lan Drummond
1.3 Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka adak, Kapuloan Aleutian
1.4 kelas
batuan beku
batuan beku
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
vulkanik
vulkanik
1.6 kategori liyane
rock opaque
rock grained nggoleki, medium rock grained, rock opaque