tatanan
picrite punika nggoleki-grained, hard rock kang jinis metasomatite, ateges ngrubah basalt. iku formulir karo utawa tanpa crystallization, salah siji ngisor permukaan minangka rocks intrusive utawa ing lumahing minangka rocks extrusive.
Wangun scoria nalika magma ngemot jumlah ageng mili gas dipun bibaraken saka gunung mbledhos sak jeblugan.
komposisi
isi Mineral
biotite, olivine, plagioclase, pyrrhotite
apatite, biotite, kalsit, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz, silika
senyawa isi
al, cao, karbon dioksida, mg, MgO
ca, NaCl
transformasi
metamorphism
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✘
✔
✘
jinis metamorphism
metamorphism kakubur, metamorphism cataclastic, impact metamorphism, metamorphism regional
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism
cuaca
✔
✘
✔
✘
jinis udan
udan biologi
udan biologi, udan kimia, udan mechanical
erosi
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✘
✔
✘
jinis erosi
erosi kimia, erosi gisik, erosi Glacier, erosi segara, banyu erosi, angin erosi
erosi kimia, erosi gisik, erosi Glacier